/* * Copyright (c) 2008-2012 Stefan Krah. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include "pycore_pystate.h" // _PyThreadState_GET() #include "longintrepr.h" #include "complexobject.h" #include "mpdecimal.h" #include #include "docstrings.h" #if !defined(MPD_VERSION_HEX) || MPD_VERSION_HEX < 0x02050000 #error "libmpdec version >= 2.5.0 required" #endif /* * Type sizes with assertions in mpdecimal.h and pyport.h: * sizeof(size_t) == sizeof(Py_ssize_t) * sizeof(size_t) == sizeof(mpd_uint_t) == sizeof(mpd_ssize_t) */ #ifdef TEST_COVERAGE #undef Py_LOCAL_INLINE #define Py_LOCAL_INLINE Py_LOCAL #endif #define MPD_Float_operation MPD_Not_implemented #define BOUNDS_CHECK(x, MIN, MAX) x = (x < MIN || MAX < x) ? MAX : x #if defined(__GNUC__) && !defined(__INTEL_COMPILER) #define UNUSED __attribute__((unused)) #else #define UNUSED #endif /* _Py_DEC_MINALLOC >= MPD_MINALLOC */ #define _Py_DEC_MINALLOC 4 typedef struct { PyObject_HEAD Py_hash_t hash; mpd_t dec; mpd_uint_t data[_Py_DEC_MINALLOC]; } PyDecObject; typedef struct { PyObject_HEAD uint32_t *flags; } PyDecSignalDictObject; typedef struct { PyObject_HEAD mpd_context_t ctx; PyObject *traps; PyObject *flags; int capitals; PyThreadState *tstate; } PyDecContextObject; typedef struct { PyObject_HEAD PyObject *local; PyObject *global; } PyDecContextManagerObject; #undef MPD #undef CTX static PyTypeObject PyDec_Type; static PyTypeObject *PyDecSignalDict_Type; static PyTypeObject PyDecContext_Type; static PyTypeObject PyDecContextManager_Type; #define PyDec_CheckExact(v) Py_IS_TYPE(v, &PyDec_Type) #define PyDec_Check(v) PyObject_TypeCheck(v, &PyDec_Type) #define PyDecSignalDict_Check(v) Py_IS_TYPE(v, PyDecSignalDict_Type) #define PyDecContext_Check(v) PyObject_TypeCheck(v, &PyDecContext_Type) #define MPD(v) (&((PyDecObject *)v)->dec) #define SdFlagAddr(v) (((PyDecSignalDictObject *)v)->flags) #define SdFlags(v) (*((PyDecSignalDictObject *)v)->flags) #define CTX(v) (&((PyDecContextObject *)v)->ctx) #define CtxCaps(v) (((PyDecContextObject *)v)->capitals) Py_LOCAL_INLINE(PyObject *) incr_true(void) { Py_INCREF(Py_True); return Py_True; } Py_LOCAL_INLINE(PyObject *) incr_false(void) { Py_INCREF(Py_False); return Py_False; } #ifndef WITH_DECIMAL_CONTEXTVAR /* Key for thread state dictionary */ static PyObject *tls_context_key = NULL; /* Invariant: NULL or the most recently accessed thread local context */ static PyDecContextObject *cached_context = NULL; #else static PyObject *current_context_var = NULL; #endif /* Template for creating new thread contexts, calling Context() without * arguments and initializing the module_context on first access. */ static PyObject *default_context_template = NULL; /* Basic and extended context templates */ static PyObject *basic_context_template = NULL; static PyObject *extended_context_template = NULL; /* Error codes for functions that return signals or conditions */ #define DEC_INVALID_SIGNALS (MPD_Max_status+1U) #define DEC_ERR_OCCURRED (DEC_INVALID_SIGNALS<<1) #define DEC_ERRORS (DEC_INVALID_SIGNALS|DEC_ERR_OCCURRED) typedef struct { const char *name; /* condition or signal name */ const char *fqname; /* fully qualified name */ uint32_t flag; /* libmpdec flag */ PyObject *ex; /* corresponding exception */ } DecCondMap; /* Top level Exception; inherits from ArithmeticError */ static PyObject *DecimalException = NULL; /* Exceptions that correspond to IEEE signals */ #define SUBNORMAL 5 #define INEXACT 6 #define ROUNDED 7 #define SIGNAL_MAP_LEN 9 static DecCondMap signal_map[] = { {"InvalidOperation", "decimal.InvalidOperation", MPD_IEEE_Invalid_operation, NULL}, {"FloatOperation", "decimal.FloatOperation", MPD_Float_operation, NULL}, {"DivisionByZero", "decimal.DivisionByZero", MPD_Division_by_zero, NULL}, {"Overflow", "decimal.Overflow", MPD_Overflow, NULL}, {"Underflow", "decimal.Underflow", MPD_Underflow, NULL}, {"Subnormal", "decimal.Subnormal", MPD_Subnormal, NULL}, {"Inexact", "decimal.Inexact", MPD_Inexact, NULL}, {"Rounded", "decimal.Rounded", MPD_Rounded, NULL}, {"Clamped", "decimal.Clamped", MPD_Clamped, NULL}, {NULL} }; /* Exceptions that inherit from InvalidOperation */ static DecCondMap cond_map[] = { {"InvalidOperation", "decimal.InvalidOperation", MPD_Invalid_operation, NULL}, {"ConversionSyntax", "decimal.ConversionSyntax", MPD_Conversion_syntax, NULL}, {"DivisionImpossible", "decimal.DivisionImpossible", MPD_Division_impossible, NULL}, {"DivisionUndefined", "decimal.DivisionUndefined", MPD_Division_undefined, NULL}, {"InvalidContext", "decimal.InvalidContext", MPD_Invalid_context, NULL}, #ifdef EXTRA_FUNCTIONALITY {"MallocError", "decimal.MallocError", MPD_Malloc_error, NULL}, #endif {NULL} }; static const char *dec_signal_string[MPD_NUM_FLAGS] = { "Clamped", "InvalidOperation", "DivisionByZero", "InvalidOperation", "InvalidOperation", "InvalidOperation", "Inexact", "InvalidOperation", "InvalidOperation", "InvalidOperation", "FloatOperation", "Overflow", "Rounded", "Subnormal", "Underflow", }; #ifdef EXTRA_FUNCTIONALITY #define _PY_DEC_ROUND_GUARD MPD_ROUND_GUARD #else #define _PY_DEC_ROUND_GUARD (MPD_ROUND_GUARD-1) #endif static PyObject *round_map[_PY_DEC_ROUND_GUARD]; static const char *invalid_rounding_err = "valid values for rounding are:\n\ [ROUND_CEILING, ROUND_FLOOR, ROUND_UP, ROUND_DOWN,\n\ ROUND_HALF_UP, ROUND_HALF_DOWN, ROUND_HALF_EVEN,\n\ ROUND_05UP]"; static const char *invalid_signals_err = "valid values for signals are:\n\ [InvalidOperation, FloatOperation, DivisionByZero,\n\ Overflow, Underflow, Subnormal, Inexact, Rounded,\n\ Clamped]"; #ifdef EXTRA_FUNCTIONALITY static const char *invalid_flags_err = "valid values for _flags or _traps are:\n\ signals:\n\ [DecIEEEInvalidOperation, DecFloatOperation, DecDivisionByZero,\n\ DecOverflow, DecUnderflow, DecSubnormal, DecInexact, DecRounded,\n\ DecClamped]\n\ conditions which trigger DecIEEEInvalidOperation:\n\ [DecInvalidOperation, DecConversionSyntax, DecDivisionImpossible,\n\ DecDivisionUndefined, DecFpuError, DecInvalidContext, DecMallocError]"; #endif static int value_error_int(const char *mesg) { PyErr_SetString(PyExc_ValueError, mesg); return -1; } #ifdef CONFIG_32 static PyObject * value_error_ptr(const char *mesg) { PyErr_SetString(PyExc_ValueError, mesg); return NULL; } #endif static int type_error_int(const char *mesg) { PyErr_SetString(PyExc_TypeError, mesg); return -1; } static int runtime_error_int(const char *mesg) { PyErr_SetString(PyExc_RuntimeError, mesg); return -1; } #define INTERNAL_ERROR_INT(funcname) \ return runtime_error_int("internal error in " funcname) static PyObject * runtime_error_ptr(const char *mesg) { PyErr_SetString(PyExc_RuntimeError, mesg); return NULL; } #define INTERNAL_ERROR_PTR(funcname) \ return runtime_error_ptr("internal error in " funcname) static void dec_traphandler(mpd_context_t *ctx UNUSED) /* GCOV_NOT_REACHED */ { /* GCOV_NOT_REACHED */ return; /* GCOV_NOT_REACHED */ } static PyObject * flags_as_exception(uint32_t flags) { DecCondMap *cm; for (cm = signal_map; cm->name != NULL; cm++) { if (flags&cm->flag) { return cm->ex; } } INTERNAL_ERROR_PTR("flags_as_exception"); /* GCOV_NOT_REACHED */ } Py_LOCAL_INLINE(uint32_t) exception_as_flag(PyObject *ex) { DecCondMap *cm; for (cm = signal_map; cm->name != NULL; cm++) { if (cm->ex == ex) { return cm->flag; } } PyErr_SetString(PyExc_KeyError, invalid_signals_err); return DEC_INVALID_SIGNALS; } static PyObject * flags_as_list(uint32_t flags) { PyObject *list; DecCondMap *cm; list = PyList_New(0); if (list == NULL) { return NULL; } for (cm = cond_map; cm->name != NULL; cm++) { if (flags&cm->flag) { if (PyList_Append(list, cm->ex) < 0) { goto error; } } } for (cm = signal_map+1; cm->name != NULL; cm++) { if (flags&cm->flag) { if (PyList_Append(list, cm->ex) < 0) { goto error; } } } return list; error: Py_DECREF(list); return NULL; } static PyObject * signals_as_list(uint32_t flags) { PyObject *list; DecCondMap *cm; list = PyList_New(0); if (list == NULL) { return NULL; } for (cm = signal_map; cm->name != NULL; cm++) { if (flags&cm->flag) { if (PyList_Append(list, cm->ex) < 0) { Py_DECREF(list); return NULL; } } } return list; } static uint32_t list_as_flags(PyObject *list) { PyObject *item; uint32_t flags, x; Py_ssize_t n, j; assert(PyList_Check(list)); n = PyList_Size(list); flags = 0; for (j = 0; j < n; j++) { item = PyList_GetItem(list, j); x = exception_as_flag(item); if (x & DEC_ERRORS) { return x; } flags |= x; } return flags; } static PyObject * flags_as_dict(uint32_t flags) { DecCondMap *cm; PyObject *dict; dict = PyDict_New(); if (dict == NULL) { return NULL; } for (cm = signal_map; cm->name != NULL; cm++) { PyObject *b = flags&cm->flag ? Py_True : Py_False; if (PyDict_SetItem(dict, cm->ex, b) < 0) { Py_DECREF(dict); return NULL; } } return dict; } static uint32_t dict_as_flags(PyObject *val) { PyObject *b; DecCondMap *cm; uint32_t flags = 0; int x; if (!PyDict_Check(val)) { PyErr_SetString(PyExc_TypeError, "argument must be a signal dict"); return DEC_INVALID_SIGNALS; } if (PyDict_Size(val) != SIGNAL_MAP_LEN) { PyErr_SetString(PyExc_KeyError, "invalid signal dict"); return DEC_INVALID_SIGNALS; } for (cm = signal_map; cm->name != NULL; cm++) { b = PyDict_GetItemWithError(val, cm->ex); if (b == NULL) { if (PyErr_Occurred()) { return DEC_ERR_OCCURRED; } PyErr_SetString(PyExc_KeyError, "invalid signal dict"); return DEC_INVALID_SIGNALS; } x = PyObject_IsTrue(b); if (x < 0) { return DEC_ERR_OCCURRED; } if (x == 1) { flags |= cm->flag; } } return flags; } #ifdef EXTRA_FUNCTIONALITY static uint32_t long_as_flags(PyObject *v) { long x; x = PyLong_AsLong(v); if (x == -1 && PyErr_Occurred()) { return DEC_ERR_OCCURRED; } if (x < 0 || x > (long)MPD_Max_status) { PyErr_SetString(PyExc_TypeError, invalid_flags_err); return DEC_INVALID_SIGNALS; } return x; } #endif static int dec_addstatus(PyObject *context, uint32_t status) { mpd_context_t *ctx = CTX(context); ctx->status |= status; if (status & (ctx->traps|MPD_Malloc_error)) { PyObject *ex, *siglist; if (status & MPD_Malloc_error) { PyErr_NoMemory(); return 1; } ex = flags_as_exception(ctx->traps&status); if (ex == NULL) { return 1; /* GCOV_NOT_REACHED */ } siglist = flags_as_list(ctx->traps&status); if (siglist == NULL) { return 1; } PyErr_SetObject(ex, siglist); Py_DECREF(siglist); return 1; } return 0; } static int getround(PyObject *v) { int i; if (PyUnicode_Check(v)) { for (i = 0; i < _PY_DEC_ROUND_GUARD; i++) { if (v == round_map[i]) { return i; } } for (i = 0; i < _PY_DEC_ROUND_GUARD; i++) { if (PyUnicode_Compare(v, round_map[i]) == 0) { return i; } } } return type_error_int(invalid_rounding_err); } /******************************************************************************/ /* SignalDict Object */ /******************************************************************************/ /* The SignalDict is a MutableMapping that provides access to the mpd_context_t flags, which reside in the context object. When a new context is created, context.traps and context.flags are initialized to new SignalDicts. Once a SignalDict is tied to a context, it cannot be deleted. */ static int signaldict_init(PyObject *self, PyObject *args UNUSED, PyObject *kwds UNUSED) { SdFlagAddr(self) = NULL; return 0; } static Py_ssize_t signaldict_len(PyObject *self UNUSED) { return SIGNAL_MAP_LEN; } static PyObject *SignalTuple; static PyObject * signaldict_iter(PyObject *self UNUSED) { return PyTuple_Type.tp_iter(SignalTuple); } static PyObject * signaldict_getitem(PyObject *self, PyObject *key) { uint32_t flag; flag = exception_as_flag(key); if (flag & DEC_ERRORS) { return NULL; } return SdFlags(self)&flag ? incr_true() : incr_false(); } static int signaldict_setitem(PyObject *self, PyObject *key, PyObject *value) { uint32_t flag; int x; if (value == NULL) { return value_error_int("signal keys cannot be deleted"); } flag = exception_as_flag(key); if (flag & DEC_ERRORS) { return -1; } x = PyObject_IsTrue(value); if (x < 0) { return -1; } if (x == 1) { SdFlags(self) |= flag; } else { SdFlags(self) &= ~flag; } return 0; } static PyObject * signaldict_repr(PyObject *self) { DecCondMap *cm; const char *n[SIGNAL_MAP_LEN]; /* name */ const char *b[SIGNAL_MAP_LEN]; /* bool */ int i; assert(SIGNAL_MAP_LEN == 9); for (cm=signal_map, i=0; cm->name != NULL; cm++, i++) { n[i] = cm->fqname; b[i] = SdFlags(self)&cm->flag ? "True" : "False"; } return PyUnicode_FromFormat( "{:%s, :%s, :%s, " ":%s, :%s, :%s, " ":%s, :%s, :%s}", n[0], b[0], n[1], b[1], n[2], b[2], n[3], b[3], n[4], b[4], n[5], b[5], n[6], b[6], n[7], b[7], n[8], b[8]); } static PyObject * signaldict_richcompare(PyObject *v, PyObject *w, int op) { PyObject *res = Py_NotImplemented; assert(PyDecSignalDict_Check(v)); if (op == Py_EQ || op == Py_NE) { if (PyDecSignalDict_Check(w)) { res = (SdFlags(v)==SdFlags(w)) ^ (op==Py_NE) ? Py_True : Py_False; } else if (PyDict_Check(w)) { uint32_t flags = dict_as_flags(w); if (flags & DEC_ERRORS) { if (flags & DEC_INVALID_SIGNALS) { /* non-comparable: Py_NotImplemented */ PyErr_Clear(); } else { return NULL; } } else { res = (SdFlags(v)==flags) ^ (op==Py_NE) ? Py_True : Py_False; } } } Py_INCREF(res); return res; } static PyObject * signaldict_copy(PyObject *self, PyObject *args UNUSED) { return flags_as_dict(SdFlags(self)); } static PyMappingMethods signaldict_as_mapping = { (lenfunc)signaldict_len, /* mp_length */ (binaryfunc)signaldict_getitem, /* mp_subscript */ (objobjargproc)signaldict_setitem /* mp_ass_subscript */ }; static PyMethodDef signaldict_methods[] = { { "copy", (PyCFunction)signaldict_copy, METH_NOARGS, NULL}, {NULL, NULL} }; static PyTypeObject PyDecSignalDictMixin_Type = { PyVarObject_HEAD_INIT(0, 0) "decimal.SignalDictMixin", /* tp_name */ sizeof(PyDecSignalDictObject), /* tp_basicsize */ 0, /* tp_itemsize */ 0, /* tp_dealloc */ 0, /* tp_vectorcall_offset */ (getattrfunc) 0, /* tp_getattr */ (setattrfunc) 0, /* tp_setattr */ 0, /* tp_as_async */ (reprfunc) signaldict_repr, /* tp_repr */ 0, /* tp_as_number */ 0, /* tp_as_sequence */ &signaldict_as_mapping, /* tp_as_mapping */ PyObject_HashNotImplemented, /* tp_hash */ 0, /* tp_call */ (reprfunc) 0, /* tp_str */ PyObject_GenericGetAttr, /* tp_getattro */ (setattrofunc) 0, /* tp_setattro */ (PyBufferProcs *) 0, /* tp_as_buffer */ Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, /* tp_flags */ 0, /* tp_doc */ 0, /* tp_traverse */ 0, /* tp_clear */ signaldict_richcompare, /* tp_richcompare */ 0, /* tp_weaklistoffset */ (getiterfunc)signaldict_iter, /* tp_iter */ 0, /* tp_iternext */ signaldict_methods, /* tp_methods */ 0, /* tp_members */ 0, /* tp_getset */ 0, /* tp_base */ 0, /* tp_dict */ 0, /* tp_descr_get */ 0, /* tp_descr_set */ 0, /* tp_dictoffset */ (initproc)signaldict_init, /* tp_init */ 0, /* tp_alloc */ PyType_GenericNew, /* tp_new */ }; /******************************************************************************/ /* Context Object, Part 1 */ /******************************************************************************/ #define Dec_CONTEXT_GET_SSIZE(mem) \ static PyObject * \ context_get##mem(PyObject *self, void *closure UNUSED) \ { \ return PyLong_FromSsize_t(mpd_get##mem(CTX(self))); \ } #define Dec_CONTEXT_GET_ULONG(mem) \ static PyObject * \ context_get##mem(PyObject *self, void *closure UNUSED) \ { \ return PyLong_FromUnsignedLong(mpd_get##mem(CTX(self))); \ } Dec_CONTEXT_GET_SSIZE(prec) Dec_CONTEXT_GET_SSIZE(emax) Dec_CONTEXT_GET_SSIZE(emin) Dec_CONTEXT_GET_SSIZE(clamp) #ifdef EXTRA_FUNCTIONALITY Dec_CONTEXT_GET_ULONG(traps) Dec_CONTEXT_GET_ULONG(status) #endif static PyObject * context_getround(PyObject *self, void *closure UNUSED) { int i = mpd_getround(CTX(self)); Py_INCREF(round_map[i]); return round_map[i]; } static PyObject * context_getcapitals(PyObject *self, void *closure UNUSED) { return PyLong_FromLong(CtxCaps(self)); } #ifdef EXTRA_FUNCTIONALITY static PyObject * context_getallcr(PyObject *self, void *closure UNUSED) { return PyLong_FromLong(mpd_getcr(CTX(self))); } #endif static PyObject * context_getetiny(PyObject *self, PyObject *dummy UNUSED) { return PyLong_FromSsize_t(mpd_etiny(CTX(self))); } static PyObject * context_getetop(PyObject *self, PyObject *dummy UNUSED) { return PyLong_FromSsize_t(mpd_etop(CTX(self))); } static int context_setprec(PyObject *self, PyObject *value, void *closure UNUSED) { mpd_context_t *ctx; mpd_ssize_t x; x = PyLong_AsSsize_t(value); if (x == -1 && PyErr_Occurred()) { return -1; } ctx = CTX(self); if (!mpd_qsetprec(ctx, x)) { return value_error_int( "valid range for prec is [1, MAX_PREC]"); } return 0; } static int context_setemin(PyObject *self, PyObject *value, void *closure UNUSED) { mpd_context_t *ctx; mpd_ssize_t x; x = PyLong_AsSsize_t(value); if (x == -1 && PyErr_Occurred()) { return -1; } ctx = CTX(self); if (!mpd_qsetemin(ctx, x)) { return value_error_int( "valid range for Emin is [MIN_EMIN, 0]"); } return 0; } static int context_setemax(PyObject *self, PyObject *value, void *closure UNUSED) { mpd_context_t *ctx; mpd_ssize_t x; x = PyLong_AsSsize_t(value); if (x == -1 && PyErr_Occurred()) { return -1; } ctx = CTX(self); if (!mpd_qsetemax(ctx, x)) { return value_error_int( "valid range for Emax is [0, MAX_EMAX]"); } return 0; } #ifdef CONFIG_32 static PyObject * context_unsafe_setprec(PyObject *self, PyObject *value) { mpd_context_t *ctx = CTX(self); mpd_ssize_t x; x = PyLong_AsSsize_t(value); if (x == -1 && PyErr_Occurred()) { return NULL; } if (x < 1 || x > 1070000000L) { return value_error_ptr( "valid range for unsafe prec is [1, 1070000000]"); } ctx->prec = x; Py_RETURN_NONE; } static PyObject * context_unsafe_setemin(PyObject *self, PyObject *value) { mpd_context_t *ctx = CTX(self); mpd_ssize_t x; x = PyLong_AsSsize_t(value); if (x == -1 && PyErr_Occurred()) { return NULL; } if (x < -1070000000L || x > 0) { return value_error_ptr( "valid range for unsafe emin is [-1070000000, 0]"); } ctx->emin = x; Py_RETURN_NONE; } static PyObject * context_unsafe_setemax(PyObject *self, PyObject *value) { mpd_context_t *ctx = CTX(self); mpd_ssize_t x; x = PyLong_AsSsize_t(value); if (x == -1 && PyErr_Occurred()) { return NULL; } if (x < 0 || x > 1070000000L) { return value_error_ptr( "valid range for unsafe emax is [0, 1070000000]"); } ctx->emax = x; Py_RETURN_NONE; } #endif static int context_setround(PyObject *self, PyObject *value, void *closure UNUSED) { mpd_context_t *ctx; int x; x = getround(value); if (x == -1) { return -1; } ctx = CTX(self); if (!mpd_qsetround(ctx, x)) { INTERNAL_ERROR_INT("context_setround"); /* GCOV_NOT_REACHED */ } return 0; } static int context_setcapitals(PyObject *self, PyObject *value, void *closure UNUSED) { mpd_ssize_t x; x = PyLong_AsSsize_t(value); if (x == -1 && PyErr_Occurred()) { return -1; } if (x != 0 && x != 1) { return value_error_int( "valid values for capitals are 0 or 1"); } CtxCaps(self) = (int)x; return 0; } #ifdef EXTRA_FUNCTIONALITY static int context_settraps(PyObject *self, PyObject *value, void *closure UNUSED) { mpd_context_t *ctx; uint32_t flags; flags = long_as_flags(value); if (flags & DEC_ERRORS) { return -1; } ctx = CTX(self); if (!mpd_qsettraps(ctx, flags)) { INTERNAL_ERROR_INT("context_settraps"); } return 0; } #endif static int context_settraps_list(PyObject *self, PyObject *value) { mpd_context_t *ctx; uint32_t flags; flags = list_as_flags(value); if (flags & DEC_ERRORS) { return -1; } ctx = CTX(self); if (!mpd_qsettraps(ctx, flags)) { INTERNAL_ERROR_INT("context_settraps_list"); } return 0; } static int context_settraps_dict(PyObject *self, PyObject *value) { mpd_context_t *ctx; uint32_t flags; if (PyDecSignalDict_Check(value)) { flags = SdFlags(value); } else { flags = dict_as_flags(value); if (flags & DEC_ERRORS) { return -1; } } ctx = CTX(self); if (!mpd_qsettraps(ctx, flags)) { INTERNAL_ERROR_INT("context_settraps_dict"); } return 0; } #ifdef EXTRA_FUNCTIONALITY static int context_setstatus(PyObject *self, PyObject *value, void *closure UNUSED) { mpd_context_t *ctx; uint32_t flags; flags = long_as_flags(value); if (flags & DEC_ERRORS) { return -1; } ctx = CTX(self); if (!mpd_qsetstatus(ctx, flags)) { INTERNAL_ERROR_INT("context_setstatus"); } return 0; } #endif static int context_setstatus_list(PyObject *self, PyObject *value) { mpd_context_t *ctx; uint32_t flags; flags = list_as_flags(value); if (flags & DEC_ERRORS) { return -1; } ctx = CTX(self); if (!mpd_qsetstatus(ctx, flags)) { INTERNAL_ERROR_INT("context_setstatus_list"); } return 0; } static int context_setstatus_dict(PyObject *self, PyObject *value) { mpd_context_t *ctx; uint32_t flags; if (PyDecSignalDict_Check(value)) { flags = SdFlags(value); } else { flags = dict_as_flags(value); if (flags & DEC_ERRORS) { return -1; } } ctx = CTX(self); if (!mpd_qsetstatus(ctx, flags)) { INTERNAL_ERROR_INT("context_setstatus_dict"); } return 0; } static int context_setclamp(PyObject *self, PyObject *value, void *closure UNUSED) { mpd_context_t *ctx; mpd_ssize_t x; x = PyLong_AsSsize_t(value); if (x == -1 && PyErr_Occurred()) { return -1; } BOUNDS_CHECK(x, INT_MIN, INT_MAX); ctx = CTX(self); if (!mpd_qsetclamp(ctx, (int)x)) { return value_error_int("valid values for clamp are 0 or 1"); } return 0; } #ifdef EXTRA_FUNCTIONALITY static int context_setallcr(PyObject *self, PyObject *value, void *closure UNUSED) { mpd_context_t *ctx; mpd_ssize_t x; x = PyLong_AsSsize_t(value); if (x == -1 && PyErr_Occurred()) { return -1; } BOUNDS_CHECK(x, INT_MIN, INT_MAX); ctx = CTX(self); if (!mpd_qsetcr(ctx, (int)x)) { return value_error_int("valid values for _allcr are 0 or 1"); } return 0; } #endif static PyObject * context_getattr(PyObject *self, PyObject *name) { PyObject *retval; if (PyUnicode_Check(name)) { if (PyUnicode_CompareWithASCIIString(name, "traps") == 0) { retval = ((PyDecContextObject *)self)->traps; Py_INCREF(retval); return retval; } if (PyUnicode_CompareWithASCIIString(name, "flags") == 0) { retval = ((PyDecContextObject *)self)->flags; Py_INCREF(retval); return retval; } } return PyObject_GenericGetAttr(self, name); } static int context_setattr(PyObject *self, PyObject *name, PyObject *value) { if (value == NULL) { PyErr_SetString(PyExc_AttributeError, "context attributes cannot be deleted"); return -1; } if (PyUnicode_Check(name)) { if (PyUnicode_CompareWithASCIIString(name, "traps") == 0) { return context_settraps_dict(self, value); } if (PyUnicode_CompareWithASCIIString(name, "flags") == 0) { return context_setstatus_dict(self, value); } } return PyObject_GenericSetAttr(self, name, value); } static PyObject * context_clear_traps(PyObject *self, PyObject *dummy UNUSED) { CTX(self)->traps = 0; Py_RETURN_NONE; } static PyObject * context_clear_flags(PyObject *self, PyObject *dummy UNUSED) { CTX(self)->status = 0; Py_RETURN_NONE; } #define DEC_DFLT_EMAX 999999 #define DEC_DFLT_EMIN -999999 static mpd_context_t dflt_ctx = { 28, DEC_DFLT_EMAX, DEC_DFLT_EMIN, MPD_IEEE_Invalid_operation|MPD_Division_by_zero|MPD_Overflow, 0, 0, MPD_ROUND_HALF_EVEN, 0, 1 }; static PyObject * context_new(PyTypeObject *type, PyObject *args UNUSED, PyObject *kwds UNUSED) { PyDecContextObject *self = NULL; mpd_context_t *ctx; if (type == &PyDecContext_Type) { self = PyObject_New(PyDecContextObject, &PyDecContext_Type); } else { self = (PyDecContextObject *)type->tp_alloc(type, 0); } if (self == NULL) { return NULL; } self->traps = PyObject_CallObject((PyObject *)PyDecSignalDict_Type, NULL); if (self->traps == NULL) { self->flags = NULL; Py_DECREF(self); return NULL; } self->flags = PyObject_CallObject((PyObject *)PyDecSignalDict_Type, NULL); if (self->flags == NULL) { Py_DECREF(self); return NULL; } ctx = CTX(self); if (default_context_template) { *ctx = *CTX(default_context_template); } else { *ctx = dflt_ctx; } SdFlagAddr(self->traps) = &ctx->traps; SdFlagAddr(self->flags) = &ctx->status; CtxCaps(self) = 1; self->tstate = NULL; return (PyObject *)self; } static void context_dealloc(PyDecContextObject *self) { #ifndef WITH_DECIMAL_CONTEXTVAR if (self == cached_context) { cached_context = NULL; } #endif Py_XDECREF(self->traps); Py_XDECREF(self->flags); Py_TYPE(self)->tp_free(self); } static int context_init(PyObject *self, PyObject *args, PyObject *kwds) { static char *kwlist[] = { "prec", "rounding", "Emin", "Emax", "capitals", "clamp", "flags", "traps", NULL }; PyObject *prec = Py_None; PyObject *rounding = Py_None; PyObject *emin = Py_None; PyObject *emax = Py_None; PyObject *capitals = Py_None; PyObject *clamp = Py_None; PyObject *status = Py_None; PyObject *traps = Py_None; int ret; assert(PyTuple_Check(args)); if (!PyArg_ParseTupleAndKeywords( args, kwds, "|OOOOOOOO", kwlist, &prec, &rounding, &emin, &emax, &capitals, &clamp, &status, &traps )) { return -1; } if (prec != Py_None && context_setprec(self, prec, NULL) < 0) { return -1; } if (rounding != Py_None && context_setround(self, rounding, NULL) < 0) { return -1; } if (emin != Py_None && context_setemin(self, emin, NULL) < 0) { return -1; } if (emax != Py_None && context_setemax(self, emax, NULL) < 0) { return -1; } if (capitals != Py_None && context_setcapitals(self, capitals, NULL) < 0) { return -1; } if (clamp != Py_None && context_setclamp(self, clamp, NULL) < 0) { return -1; } if (traps != Py_None) { if (PyList_Check(traps)) { ret = context_settraps_list(self, traps); } #ifdef EXTRA_FUNCTIONALITY else if (PyLong_Check(traps)) { ret = context_settraps(self, traps, NULL); } #endif else { ret = context_settraps_dict(self, traps); } if (ret < 0) { return ret; } } if (status != Py_None) { if (PyList_Check(status)) { ret = context_setstatus_list(self, status); } #ifdef EXTRA_FUNCTIONALITY else if (PyLong_Check(status)) { ret = context_setstatus(self, status, NULL); } #endif else { ret = context_setstatus_dict(self, status); } if (ret < 0) { return ret; } } return 0; } static PyObject * context_repr(PyDecContextObject *self) { mpd_context_t *ctx; char flags[MPD_MAX_SIGNAL_LIST]; char traps[MPD_MAX_SIGNAL_LIST]; int n, mem; assert(PyDecContext_Check(self)); ctx = CTX(self); mem = MPD_MAX_SIGNAL_LIST; n = mpd_lsnprint_signals(flags, mem, ctx->status, dec_signal_string); if (n < 0 || n >= mem) { INTERNAL_ERROR_PTR("context_repr"); } n = mpd_lsnprint_signals(traps, mem, ctx->traps, dec_signal_string); if (n < 0 || n >= mem) { INTERNAL_ERROR_PTR("context_repr"); } return PyUnicode_FromFormat( "Context(prec=%zd, rounding=%s, Emin=%zd, Emax=%zd, " "capitals=%d, clamp=%d, flags=%s, traps=%s)", ctx->prec, mpd_round_string[ctx->round], ctx->emin, ctx->emax, self->capitals, ctx->clamp, flags, traps); } static void init_basic_context(PyObject *v) { mpd_context_t ctx = dflt_ctx; ctx.prec = 9; ctx.traps |= (MPD_Underflow|MPD_Clamped); ctx.round = MPD_ROUND_HALF_UP; *CTX(v) = ctx; CtxCaps(v) = 1; } static void init_extended_context(PyObject *v) { mpd_context_t ctx = dflt_ctx; ctx.prec = 9; ctx.traps = 0; *CTX(v) = ctx; CtxCaps(v) = 1; } #ifdef EXTRA_FUNCTIONALITY /* Factory function for creating IEEE interchange format contexts */ static PyObject * ieee_context(PyObject *dummy UNUSED, PyObject *v) { PyObject *context; mpd_ssize_t bits; mpd_context_t ctx; bits = PyLong_AsSsize_t(v); if (bits == -1 && PyErr_Occurred()) { return NULL; } if (bits <= 0 || bits > INT_MAX) { goto error; } if (mpd_ieee_context(&ctx, (int)bits) < 0) { goto error; } context = PyObject_CallObject((PyObject *)&PyDecContext_Type, NULL); if (context == NULL) { return NULL; } *CTX(context) = ctx; return context; error: PyErr_Format(PyExc_ValueError, "argument must be a multiple of 32, with a maximum of %d", MPD_IEEE_CONTEXT_MAX_BITS); return NULL; } #endif static PyObject * context_copy(PyObject *self, PyObject *args UNUSED) { PyObject *copy; copy = PyObject_CallObject((PyObject *)&PyDecContext_Type, NULL); if (copy == NULL) { return NULL; } *CTX(copy) = *CTX(self); CTX(copy)->newtrap = 0; CtxCaps(copy) = CtxCaps(self); return copy; } static PyObject * context_reduce(PyObject *self, PyObject *args UNUSED) { PyObject *flags; PyObject *traps; PyObject *ret; mpd_context_t *ctx; ctx = CTX(self); flags = signals_as_list(ctx->status); if (flags == NULL) { return NULL; } traps = signals_as_list(ctx->traps); if (traps == NULL) { Py_DECREF(flags); return NULL; } ret = Py_BuildValue( "O(nsnniiOO)", Py_TYPE(self), ctx->prec, mpd_round_string[ctx->round], ctx->emin, ctx->emax, CtxCaps(self), ctx->clamp, flags, traps ); Py_DECREF(flags); Py_DECREF(traps); return ret; } static PyGetSetDef context_getsets [] = { { "prec", (getter)context_getprec, (setter)context_setprec, NULL, NULL}, { "Emax", (getter)context_getemax, (setter)context_setemax, NULL, NULL}, { "Emin", (getter)context_getemin, (setter)context_setemin, NULL, NULL}, { "rounding", (getter)context_getround, (setter)context_setround, NULL, NULL}, { "capitals", (getter)context_getcapitals, (setter)context_setcapitals, NULL, NULL}, { "clamp", (getter)context_getclamp, (setter)context_setclamp, NULL, NULL}, #ifdef EXTRA_FUNCTIONALITY { "_allcr", (getter)context_getallcr, (setter)context_setallcr, NULL, NULL}, { "_traps", (getter)context_gettraps, (setter)context_settraps, NULL, NULL}, { "_flags", (getter)context_getstatus, (setter)context_setstatus, NULL, NULL}, #endif {NULL} }; #define CONTEXT_CHECK(obj) \ if (!PyDecContext_Check(obj)) { \ PyErr_SetString(PyExc_TypeError, \ "argument must be a context"); \ return NULL; \ } #define CONTEXT_CHECK_VA(obj) \ if (obj == Py_None) { \ CURRENT_CONTEXT(obj); \ } \ else if (!PyDecContext_Check(obj)) { \ PyErr_SetString(PyExc_TypeError, \ "optional argument must be a context"); \ return NULL; \ } /******************************************************************************/ /* Global, thread local and temporary contexts */ /******************************************************************************/ /* * Thread local storage currently has a speed penalty of about 4%. * All functions that map Python's arithmetic operators to mpdecimal * functions have to look up the current context for each and every * operation. */ #ifndef WITH_DECIMAL_CONTEXTVAR /* Get the context from the thread state dictionary. */ static PyObject * current_context_from_dict(void) { PyThreadState *tstate = _PyThreadState_GET(); #ifdef Py_DEBUG // The caller must hold the GIL _Py_EnsureTstateNotNULL(tstate); #endif PyObject *dict = _PyThreadState_GetDict(tstate); if (dict == NULL) { PyErr_SetString(PyExc_RuntimeError, "cannot get thread state"); return NULL; } PyObject *tl_context = PyDict_GetItemWithError(dict, tls_context_key); if (tl_context != NULL) { /* We already have a thread local context. */ CONTEXT_CHECK(tl_context); } else { if (PyErr_Occurred()) { return NULL; } /* Set up a new thread local context. */ tl_context = context_copy(default_context_template, NULL); if (tl_context == NULL) { return NULL; } CTX(tl_context)->status = 0; if (PyDict_SetItem(dict, tls_context_key, tl_context) < 0) { Py_DECREF(tl_context); return NULL; } Py_DECREF(tl_context); } /* Cache the context of the current thread, assuming that it * will be accessed several times before a thread switch. */ cached_context = (PyDecContextObject *)tl_context; cached_context->tstate = tstate; /* Borrowed reference with refcount==1 */ return tl_context; } /* Return borrowed reference to thread local context. */ static PyObject * current_context(void) { PyThreadState *tstate = _PyThreadState_GET(); if (cached_context && cached_context->tstate == tstate) { return (PyObject *)cached_context; } return current_context_from_dict(); } /* ctxobj := borrowed reference to the current context */ #define CURRENT_CONTEXT(ctxobj) \ ctxobj = current_context(); \ if (ctxobj == NULL) { \ return NULL; \ } /* Return a new reference to the current context */ static PyObject * PyDec_GetCurrentContext(PyObject *self UNUSED, PyObject *args UNUSED) { PyObject *context; context = current_context(); if (context == NULL) { return NULL; } Py_INCREF(context); return context; } /* Set the thread local context to a new context, decrement old reference */ static PyObject * PyDec_SetCurrentContext(PyObject *self UNUSED, PyObject *v) { PyObject *dict; CONTEXT_CHECK(v); dict = PyThreadState_GetDict(); if (dict == NULL) { PyErr_SetString(PyExc_RuntimeError, "cannot get thread state"); return NULL; } /* If the new context is one of the templates, make a copy. * This is the current behavior of decimal.py. */ if (v == default_context_template || v == basic_context_template || v == extended_context_template) { v = context_copy(v, NULL); if (v == NULL) { return NULL; } CTX(v)->status = 0; } else { Py_INCREF(v); } cached_context = NULL; if (PyDict_SetItem(dict, tls_context_key, v) < 0) { Py_DECREF(v); return NULL; } Py_DECREF(v); Py_RETURN_NONE; } #else static PyObject * init_current_context(void) { PyObject *tl_context = context_copy(default_context_template, NULL); if (tl_context == NULL) { return NULL; } CTX(tl_context)->status = 0; PyObject *tok = PyContextVar_Set(current_context_var, tl_context); if (tok == NULL) { Py_DECREF(tl_context); return NULL; } Py_DECREF(tok); return tl_context; } static inline PyObject * current_context(void) { PyObject *tl_context; if (PyContextVar_Get(current_context_var, NULL, &tl_context) < 0) { return NULL; } if (tl_context != NULL) { return tl_context; } return init_current_context(); } /* ctxobj := borrowed reference to the current context */ #define CURRENT_CONTEXT(ctxobj) \ ctxobj = current_context(); \ if (ctxobj == NULL) { \ return NULL; \ } \ Py_DECREF(ctxobj); /* Return a new reference to the current context */ static PyObject * PyDec_GetCurrentContext(PyObject *self UNUSED, PyObject *args UNUSED) { return current_context(); } /* Set the thread local context to a new context, decrement old reference */ static PyObject * PyDec_SetCurrentContext(PyObject *self UNUSED, PyObject *v) { CONTEXT_CHECK(v); /* If the new context is one of the templates, make a copy. * This is the current behavior of decimal.py. */ if (v == default_context_template || v == basic_context_template || v == extended_context_template) { v = context_copy(v, NULL); if (v == NULL) { return NULL; } CTX(v)->status = 0; } else { Py_INCREF(v); } PyObject *tok = PyContextVar_Set(current_context_var, v); Py_DECREF(v); if (tok == NULL) { return NULL; } Py_DECREF(tok); Py_RETURN_NONE; } #endif /* Context manager object for the 'with' statement. The manager * owns one reference to the global (outer) context and one * to the local (inner) context. */ static PyObject * ctxmanager_new(PyTypeObject *type UNUSED, PyObject *args, PyObject *kwds) { static char *kwlist[] = {"ctx", NULL}; PyDecContextManagerObject *self; PyObject *local = Py_None; PyObject *global; CURRENT_CONTEXT(global); if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O", kwlist, &local)) { return NULL; } if (local == Py_None) { local = global; } else if (!PyDecContext_Check(local)) { PyErr_SetString(PyExc_TypeError, "optional argument must be a context"); return NULL; } self = PyObject_New(PyDecContextManagerObject, &PyDecContextManager_Type); if (self == NULL) { return NULL; } self->local = context_copy(local, NULL); if (self->local == NULL) { self->global = NULL; Py_DECREF(self); return NULL; } self->global = global; Py_INCREF(self->global); return (PyObject *)self; } static void ctxmanager_dealloc(PyDecContextManagerObject *self) { Py_XDECREF(self->local); Py_XDECREF(self->global); PyObject_Free(self); } static PyObject * ctxmanager_set_local(PyDecContextManagerObject *self, PyObject *args UNUSED) { PyObject *ret; ret = PyDec_SetCurrentContext(NULL, self->local); if (ret == NULL) { return NULL; } Py_DECREF(ret); Py_INCREF(self->local); return self->local; } static PyObject * ctxmanager_restore_global(PyDecContextManagerObject *self, PyObject *args UNUSED) { PyObject *ret; ret = PyDec_SetCurrentContext(NULL, self->global); if (ret == NULL) { return NULL; } Py_DECREF(ret); Py_RETURN_NONE; } static PyMethodDef ctxmanager_methods[] = { {"__enter__", (PyCFunction)ctxmanager_set_local, METH_NOARGS, NULL}, {"__exit__", (PyCFunction)ctxmanager_restore_global, METH_VARARGS, NULL}, {NULL, NULL} }; static PyTypeObject PyDecContextManager_Type = { PyVarObject_HEAD_INIT(NULL, 0) "decimal.ContextManager", /* tp_name */ sizeof(PyDecContextManagerObject), /* tp_basicsize */ 0, /* tp_itemsize */ (destructor) ctxmanager_dealloc, /* tp_dealloc */ 0, /* tp_vectorcall_offset */ (getattrfunc) 0, /* tp_getattr */ (setattrfunc) 0, /* tp_setattr */ 0, /* tp_as_async */ (reprfunc) 0, /* tp_repr */ 0, /* tp_as_number */ 0, /* tp_as_sequence */ 0, /* tp_as_mapping */ 0, /* tp_hash */ 0, /* tp_call */ 0, /* tp_str */ (getattrofunc) PyObject_GenericGetAttr, /* tp_getattro */ (setattrofunc) 0, /* tp_setattro */ (PyBufferProcs *) 0, /* tp_as_buffer */ Py_TPFLAGS_DEFAULT, /* tp_flags */ 0, /* tp_doc */ 0, /* tp_traverse */ 0, /* tp_clear */ 0, /* tp_richcompare */ 0, /* tp_weaklistoffset */ 0, /* tp_iter */ 0, /* tp_iternext */ ctxmanager_methods, /* tp_methods */ }; /******************************************************************************/ /* New Decimal Object */ /******************************************************************************/ static PyObject * PyDecType_New(PyTypeObject *type) { PyDecObject *dec; if (type == &PyDec_Type) { dec = PyObject_New(PyDecObject, &PyDec_Type); } else { dec = (PyDecObject *)type->tp_alloc(type, 0); } if (dec == NULL) { return NULL; } dec->hash = -1; MPD(dec)->flags = MPD_STATIC|MPD_STATIC_DATA; MPD(dec)->exp = 0; MPD(dec)->digits = 0; MPD(dec)->len = 0; MPD(dec)->alloc = _Py_DEC_MINALLOC; MPD(dec)->data = dec->data; return (PyObject *)dec; } #define dec_alloc() PyDecType_New(&PyDec_Type) static void dec_dealloc(PyObject *dec) { mpd_del(MPD(dec)); Py_TYPE(dec)->tp_free(dec); } /******************************************************************************/ /* Conversions to Decimal */ /******************************************************************************/ Py_LOCAL_INLINE(int) is_space(enum PyUnicode_Kind kind, const void *data, Py_ssize_t pos) { Py_UCS4 ch = PyUnicode_READ(kind, data, pos); return Py_UNICODE_ISSPACE(ch); } /* Return the ASCII representation of a numeric Unicode string. The numeric string may contain ascii characters in the range [1, 127], any Unicode space and any unicode digit. If strip_ws is true, leading and trailing whitespace is stripped. If ignore_underscores is true, underscores are ignored. Return NULL if malloc fails and an empty string if invalid characters are found. */ static char * numeric_as_ascii(const PyObject *u, int strip_ws, int ignore_underscores) { enum PyUnicode_Kind kind; const void *data; Py_UCS4 ch; char *res, *cp; Py_ssize_t j, len; int d; if (PyUnicode_READY(u) == -1) { return NULL; } kind = PyUnicode_KIND(u); data = PyUnicode_DATA(u); len = PyUnicode_GET_LENGTH(u); cp = res = PyMem_Malloc(len+1); if (res == NULL) { PyErr_NoMemory(); return NULL; } j = 0; if (strip_ws) { while (len > 0 && is_space(kind, data, len-1)) { len--; } while (j < len && is_space(kind, data, j)) { j++; } } for (; j < len; j++) { ch = PyUnicode_READ(kind, data, j); if (ignore_underscores && ch == '_') { continue; } if (0 < ch && ch <= 127) { *cp++ = ch; continue; } if (Py_UNICODE_ISSPACE(ch)) { *cp++ = ' '; continue; } d = Py_UNICODE_TODECIMAL(ch); if (d < 0) { /* empty string triggers ConversionSyntax */ *res = '\0'; return res; } *cp++ = '0' + d; } *cp = '\0'; return res; } /* Return a new PyDecObject or a subtype from a C string. Use the context during conversion. */ static PyObject * PyDecType_FromCString(PyTypeObject *type, const char *s, PyObject *context) { PyObject *dec; uint32_t status = 0; dec = PyDecType_New(type); if (dec == NULL) { return NULL; } mpd_qset_string(MPD(dec), s, CTX(context), &status); if (dec_addstatus(context, status)) { Py_DECREF(dec); return NULL; } return dec; } /* Return a new PyDecObject or a subtype from a C string. Attempt exact conversion. If the operand cannot be converted exactly, set InvalidOperation. */ static PyObject * PyDecType_FromCStringExact(PyTypeObject *type, const char *s, PyObject *context) { PyObject *dec; uint32_t status = 0; mpd_context_t maxctx; dec = PyDecType_New(type); if (dec == NULL) { return NULL; } mpd_maxcontext(&maxctx); mpd_qset_string(MPD(dec), s, &maxctx, &status); if (status & (MPD_Inexact|MPD_Rounded|MPD_Clamped)) { /* we want exact results */ mpd_seterror(MPD(dec), MPD_Invalid_operation, &status); } status &= MPD_Errors; if (dec_addstatus(context, status)) { Py_DECREF(dec); return NULL; } return dec; } /* Return a new PyDecObject or a subtype from a PyUnicodeObject. */ static PyObject * PyDecType_FromUnicode(PyTypeObject *type, const PyObject *u, PyObject *context) { PyObject *dec; char *s; s = numeric_as_ascii(u, 0, 0); if (s == NULL) { return NULL; } dec = PyDecType_FromCString(type, s, context); PyMem_Free(s); return dec; } /* Return a new PyDecObject or a subtype from a PyUnicodeObject. Attempt exact * conversion. If the conversion is not exact, fail with InvalidOperation. * Allow leading and trailing whitespace in the input operand. */ static PyObject * PyDecType_FromUnicodeExactWS(PyTypeObject *type, const PyObject *u, PyObject *context) { PyObject *dec; char *s; s = numeric_as_ascii(u, 1, 1); if (s == NULL) { return NULL; } dec = PyDecType_FromCStringExact(type, s, context); PyMem_Free(s); return dec; } /* Set PyDecObject from triple without any error checking. */ Py_LOCAL_INLINE(void) _dec_settriple(PyObject *dec, uint8_t sign, uint32_t v, mpd_ssize_t exp) { #ifdef CONFIG_64 MPD(dec)->data[0] = v; MPD(dec)->len = 1; #else uint32_t q, r; q = v / MPD_RADIX; r = v - q * MPD_RADIX; MPD(dec)->data[1] = q; MPD(dec)->data[0] = r; MPD(dec)->len = q ? 2 : 1; #endif mpd_set_flags(MPD(dec), sign); MPD(dec)->exp = exp; mpd_setdigits(MPD(dec)); } /* Return a new PyDecObject from an mpd_ssize_t. */ static PyObject * PyDecType_FromSsize(PyTypeObject *type, mpd_ssize_t v, PyObject *context) { PyObject *dec; uint32_t status = 0; dec = PyDecType_New(type); if (dec == NULL) { return NULL; } mpd_qset_ssize(MPD(dec), v, CTX(context), &status); if (dec_addstatus(context, status)) { Py_DECREF(dec); return NULL; } return dec; } /* Return a new PyDecObject from an mpd_ssize_t. Conversion is exact. */ static PyObject * PyDecType_FromSsizeExact(PyTypeObject *type, mpd_ssize_t v, PyObject *context) { PyObject *dec; uint32_t status = 0; mpd_context_t maxctx; dec = PyDecType_New(type); if (dec == NULL) { return NULL; } mpd_maxcontext(&maxctx); mpd_qset_ssize(MPD(dec), v, &maxctx, &status); if (dec_addstatus(context, status)) { Py_DECREF(dec); return NULL; } return dec; } /* Convert from a PyLongObject. The context is not modified; flags set during conversion are accumulated in the status parameter. */ static PyObject * dec_from_long(PyTypeObject *type, const PyObject *v, const mpd_context_t *ctx, uint32_t *status) { PyObject *dec; PyLongObject *l = (PyLongObject *)v; Py_ssize_t ob_size; size_t len; uint8_t sign; dec = PyDecType_New(type); if (dec == NULL) { return NULL; } ob_size = Py_SIZE(l); if (ob_size == 0) { _dec_settriple(dec, MPD_POS, 0, 0); return dec; } if (ob_size < 0) { len = -ob_size; sign = MPD_NEG; } else { len = ob_size; sign = MPD_POS; } if (len == 1) { _dec_settriple(dec, sign, *l->ob_digit, 0); mpd_qfinalize(MPD(dec), ctx, status); return dec; } #if PYLONG_BITS_IN_DIGIT == 30 mpd_qimport_u32(MPD(dec), l->ob_digit, len, sign, PyLong_BASE, ctx, status); #elif PYLONG_BITS_IN_DIGIT == 15 mpd_qimport_u16(MPD(dec), l->ob_digit, len, sign, PyLong_BASE, ctx, status); #else #error "PYLONG_BITS_IN_DIGIT should be 15 or 30" #endif return dec; } /* Return a new PyDecObject from a PyLongObject. Use the context for conversion. */ static PyObject * PyDecType_FromLong(PyTypeObject *type, const PyObject *v, PyObject *context) { PyObject *dec; uint32_t status = 0; if (!PyLong_Check(v)) { PyErr_SetString(PyExc_TypeError, "argument must be an integer"); return NULL; } dec = dec_from_long(type, v, CTX(context), &status); if (dec == NULL) { return NULL; } if (dec_addstatus(context, status)) { Py_DECREF(dec); return NULL; } return dec; } /* Return a new PyDecObject from a PyLongObject. Use a maximum context for conversion. If the conversion is not exact, set InvalidOperation. */ static PyObject * PyDecType_FromLongExact(PyTypeObject *type, const PyObject *v, PyObject *context) { PyObject *dec; uint32_t status = 0; mpd_context_t maxctx; if (!PyLong_Check(v)) { PyErr_SetString(PyExc_TypeError, "argument must be an integer"); return NULL; } mpd_maxcontext(&maxctx); dec = dec_from_long(type, v, &maxctx, &status); if (dec == NULL) { return NULL; } if (status & (MPD_Inexact|MPD_Rounded|MPD_Clamped)) { /* we want exact results */ mpd_seterror(MPD(dec), MPD_Invalid_operation, &status); } status &= MPD_Errors; if (dec_addstatus(context, status)) { Py_DECREF(dec); return NULL; } return dec; } /* External C-API functions */ static binaryfunc _py_long_multiply; static binaryfunc _py_long_floor_divide; static ternaryfunc _py_long_power; static unaryfunc _py_float_abs; static PyCFunction _py_long_bit_length; static PyCFunction _py_float_as_integer_ratio; /* Return a PyDecObject or a subtype from a PyFloatObject. Conversion is exact. */ static PyObject * PyDecType_FromFloatExact(PyTypeObject *type, PyObject *v, PyObject *context) { PyObject *dec, *tmp; PyObject *n, *d, *n_d; mpd_ssize_t k; double x; int sign; mpd_t *d1, *d2; uint32_t status = 0; mpd_context_t maxctx; assert(PyType_IsSubtype(type, &PyDec_Type)); if (PyLong_Check(v)) { return PyDecType_FromLongExact(type, v, context); } if (!PyFloat_Check(v)) { PyErr_SetString(PyExc_TypeError, "argument must be int or float"); return NULL; } x = PyFloat_AsDouble(v); if (x == -1.0 && PyErr_Occurred()) { return NULL; } sign = (copysign(1.0, x) == 1.0) ? 0 : 1; if (Py_IS_NAN(x) || Py_IS_INFINITY(x)) { dec = PyDecType_New(type); if (dec == NULL) { return NULL; } if (Py_IS_NAN(x)) { /* decimal.py calls repr(float(+-nan)), * which always gives a positive result. */ mpd_setspecial(MPD(dec), MPD_POS, MPD_NAN); } else { mpd_setspecial(MPD(dec), sign, MPD_INF); } return dec; } /* absolute value of the float */ tmp = _py_float_abs(v); if (tmp == NULL) { return NULL; } /* float as integer ratio: numerator/denominator */ n_d = _py_float_as_integer_ratio(tmp, NULL); Py_DECREF(tmp); if (n_d == NULL) { return NULL; } n = PyTuple_GET_ITEM(n_d, 0); d = PyTuple_GET_ITEM(n_d, 1); tmp = _py_long_bit_length(d, NULL); if (tmp == NULL) { Py_DECREF(n_d); return NULL; } k = PyLong_AsSsize_t(tmp); Py_DECREF(tmp); if (k == -1 && PyErr_Occurred()) { Py_DECREF(n_d); return NULL; } k--; dec = PyDecType_FromLongExact(type, n, context); Py_DECREF(n_d); if (dec == NULL) { return NULL; } d1 = mpd_qnew(); if (d1 == NULL) { Py_DECREF(dec); PyErr_NoMemory(); return NULL; } d2 = mpd_qnew(); if (d2 == NULL) { mpd_del(d1); Py_DECREF(dec); PyErr_NoMemory(); return NULL; } mpd_maxcontext(&maxctx); mpd_qset_uint(d1, 5, &maxctx, &status); mpd_qset_ssize(d2, k, &maxctx, &status); mpd_qpow(d1, d1, d2, &maxctx, &status); if (dec_addstatus(context, status)) { mpd_del(d1); mpd_del(d2); Py_DECREF(dec); return NULL; } /* result = n * 5**k */ mpd_qmul(MPD(dec), MPD(dec), d1, &maxctx, &status); mpd_del(d1); mpd_del(d2); if (dec_addstatus(context, status)) { Py_DECREF(dec); return NULL; } /* result = +- n * 5**k * 10**-k */ mpd_set_sign(MPD(dec), sign); MPD(dec)->exp = -k; return dec; } static PyObject * PyDecType_FromFloat(PyTypeObject *type, PyObject *v, PyObject *context) { PyObject *dec; uint32_t status = 0; dec = PyDecType_FromFloatExact(type, v, context); if (dec == NULL) { return NULL; } mpd_qfinalize(MPD(dec), CTX(context), &status); if (dec_addstatus(context, status)) { Py_DECREF(dec); return NULL; } return dec; } /* Return a new PyDecObject or a subtype from a Decimal. */ static PyObject * PyDecType_FromDecimalExact(PyTypeObject *type, PyObject *v, PyObject *context) { PyObject *dec; uint32_t status = 0; if (type == &PyDec_Type && PyDec_CheckExact(v)) { Py_INCREF(v); return v; } dec = PyDecType_New(type); if (dec == NULL) { return NULL; } mpd_qcopy(MPD(dec), MPD(v), &status); if (dec_addstatus(context, status)) { Py_DECREF(dec); return NULL; } return dec; } static PyObject * sequence_as_tuple(PyObject *v, PyObject *ex, const char *mesg) { if (PyTuple_Check(v)) { Py_INCREF(v); return v; } if (PyList_Check(v)) { return PyList_AsTuple(v); } PyErr_SetString(ex, mesg); return NULL; } /* Return a new C string representation of a DecimalTuple. */ static char * dectuple_as_str(PyObject *dectuple) { PyObject *digits = NULL, *tmp; char *decstring = NULL; char sign_special[6]; char *cp; long sign, l; mpd_ssize_t exp = 0; Py_ssize_t i, mem, tsize; int is_infinite = 0; int n; assert(PyTuple_Check(dectuple)); if (PyTuple_Size(dectuple) != 3) { PyErr_SetString(PyExc_ValueError, "argument must be a sequence of length 3"); goto error; } /* sign */ tmp = PyTuple_GET_ITEM(dectuple, 0); if (!PyLong_Check(tmp)) { PyErr_SetString(PyExc_ValueError, "sign must be an integer with the value 0 or 1"); goto error; } sign = PyLong_AsLong(tmp); if (sign == -1 && PyErr_Occurred()) { goto error; } if (sign != 0 && sign != 1) { PyErr_SetString(PyExc_ValueError, "sign must be an integer with the value 0 or 1"); goto error; } sign_special[0] = sign ? '-' : '+'; sign_special[1] = '\0'; /* exponent or encoding for a special number */ tmp = PyTuple_GET_ITEM(dectuple, 2); if (PyUnicode_Check(tmp)) { /* special */ if (PyUnicode_CompareWithASCIIString(tmp, "F") == 0) { strcat(sign_special, "Inf"); is_infinite = 1; } else if (PyUnicode_CompareWithASCIIString(tmp, "n") == 0) { strcat(sign_special, "NaN"); } else if (PyUnicode_CompareWithASCIIString(tmp, "N") == 0) { strcat(sign_special, "sNaN"); } else { PyErr_SetString(PyExc_ValueError, "string argument in the third position " "must be 'F', 'n' or 'N'"); goto error; } } else { /* exponent */ if (!PyLong_Check(tmp)) { PyErr_SetString(PyExc_ValueError, "exponent must be an integer"); goto error; } exp = PyLong_AsSsize_t(tmp); if (exp == -1 && PyErr_Occurred()) { goto error; } } /* coefficient */ digits = sequence_as_tuple(PyTuple_GET_ITEM(dectuple, 1), PyExc_ValueError, "coefficient must be a tuple of digits"); if (digits == NULL) { goto error; } tsize = PyTuple_Size(digits); /* [sign][coeffdigits+1][E][-][expdigits+1]['\0'] */ mem = 1 + tsize + 3 + MPD_EXPDIGITS + 2; cp = decstring = PyMem_Malloc(mem); if (decstring == NULL) { PyErr_NoMemory(); goto error; } n = snprintf(cp, mem, "%s", sign_special); if (n < 0 || n >= mem) { PyErr_SetString(PyExc_RuntimeError, "internal error in dec_sequence_as_str"); goto error; } cp += n; if (tsize == 0 && sign_special[1] == '\0') { /* empty tuple: zero coefficient, except for special numbers */ *cp++ = '0'; } for (i = 0; i < tsize; i++) { tmp = PyTuple_GET_ITEM(digits, i); if (!PyLong_Check(tmp)) { PyErr_SetString(PyExc_ValueError, "coefficient must be a tuple of digits"); goto error; } l = PyLong_AsLong(tmp); if (l == -1 && PyErr_Occurred()) { goto error; } if (l < 0 || l > 9) { PyErr_SetString(PyExc_ValueError, "coefficient must be a tuple of digits"); goto error; } if (is_infinite) { /* accept but ignore any well-formed coefficient for compatibility with decimal.py */ continue; } *cp++ = (char)l + '0'; } *cp = '\0'; if (sign_special[1] == '\0') { /* not a special number */ *cp++ = 'E'; n = snprintf(cp, MPD_EXPDIGITS+2, "%" PRI_mpd_ssize_t, exp); if (n < 0 || n >= MPD_EXPDIGITS+2) { PyErr_SetString(PyExc_RuntimeError, "internal error in dec_sequence_as_str"); goto error; } } Py_XDECREF(digits); return decstring; error: Py_XDECREF(digits); if (decstring) PyMem_Free(decstring); return NULL; } /* Currently accepts tuples and lists. */ static PyObject * PyDecType_FromSequence(PyTypeObject *type, PyObject *v, PyObject *context) { PyObject *dectuple; PyObject *dec; char *s; dectuple = sequence_as_tuple(v, PyExc_TypeError, "argument must be a tuple or list"); if (dectuple == NULL) { return NULL; } s = dectuple_as_str(dectuple); Py_DECREF(dectuple); if (s == NULL) { return NULL; } dec = PyDecType_FromCString(type, s, context); PyMem_Free(s); return dec; } /* Currently accepts tuples and lists. */ static PyObject * PyDecType_FromSequenceExact(PyTypeObject *type, PyObject *v, PyObject *context) { PyObject *dectuple; PyObject *dec; char *s; dectuple = sequence_as_tuple(v, PyExc_TypeError, "argument must be a tuple or list"); if (dectuple == NULL) { return NULL; } s = dectuple_as_str(dectuple); Py_DECREF(dectuple); if (s == NULL) { return NULL; } dec = PyDecType_FromCStringExact(type, s, context); PyMem_Free(s); return dec; } #define PyDec_FromCString(str, context) \ PyDecType_FromCString(&PyDec_Type, str, context) #define PyDec_FromCStringExact(str, context) \ PyDecType_FromCStringExact(&PyDec_Type, str, context) #define PyDec_FromUnicode(unicode, context) \ PyDecType_FromUnicode(&PyDec_Type, unicode, context) #define PyDec_FromUnicodeExact(unicode, context) \ PyDecType_FromUnicodeExact(&PyDec_Type, unicode, context) #define PyDec_FromUnicodeExactWS(unicode, context) \ PyDecType_FromUnicodeExactWS(&PyDec_Type, unicode, context) #define PyDec_FromSsize(v, context) \ PyDecType_FromSsize(&PyDec_Type, v, context) #define PyDec_FromSsizeExact(v, context) \ PyDecType_FromSsizeExact(&PyDec_Type, v, context) #define PyDec_FromLong(pylong, context) \ PyDecType_FromLong(&PyDec_Type, pylong, context) #define PyDec_FromLongExact(pylong, context) \ PyDecType_FromLongExact(&PyDec_Type, pylong, context) #define PyDec_FromFloat(pyfloat, context) \ PyDecType_FromFloat(&PyDec_Type, pyfloat, context) #define PyDec_FromFloatExact(pyfloat, context) \ PyDecType_FromFloatExact(&PyDec_Type, pyfloat, context) #define PyDec_FromSequence(sequence, context) \ PyDecType_FromSequence(&PyDec_Type, sequence, context) #define PyDec_FromSequenceExact(sequence, context) \ PyDecType_FromSequenceExact(&PyDec_Type, sequence, context) /* class method */ static PyObject * dec_from_float(PyObject *type, PyObject *pyfloat) { PyObject *context; PyObject *result; CURRENT_CONTEXT(context); result = PyDecType_FromFloatExact(&PyDec_Type, pyfloat, context); if (type != (PyObject *)&PyDec_Type && result != NULL) { Py_SETREF(result, PyObject_CallFunctionObjArgs(type, result, NULL)); } return result; } /* create_decimal_from_float */ static PyObject * ctx_from_float(PyObject *context, PyObject *v) { return PyDec_FromFloat(v, context); } /* Apply the context to the input operand. Return a new PyDecObject. */ static PyObject * dec_apply(PyObject *v, PyObject *context) { PyObject *result; uint32_t status = 0; result = dec_alloc(); if (result == NULL) { return NULL; } mpd_qcopy(MPD(result), MPD(v), &status); if (dec_addstatus(context, status)) { Py_DECREF(result); return NULL; } mpd_qfinalize(MPD(result), CTX(context), &status); if (dec_addstatus(context, status)) { Py_DECREF(result); return NULL; } return result; } /* 'v' can have any type accepted by the Decimal constructor. Attempt an exact conversion. If the result does not meet the restrictions for an mpd_t, fail with InvalidOperation. */ static PyObject * PyDecType_FromObjectExact(PyTypeObject *type, PyObject *v, PyObject *context) { if (v == NULL) { return PyDecType_FromSsizeExact(type, 0, context); } else if (PyDec_Check(v)) { return PyDecType_FromDecimalExact(type, v, context); } else if (PyUnicode_Check(v)) { return PyDecType_FromUnicodeExactWS(type, v, context); } else if (PyLong_Check(v)) { return PyDecType_FromLongExact(type, v, context); } else if (PyTuple_Check(v) || PyList_Check(v)) { return PyDecType_FromSequenceExact(type, v, context); } else if (PyFloat_Check(v)) { if (dec_addstatus(context, MPD_Float_operation)) { return NULL; } return PyDecType_FromFloatExact(type, v, context); } else { PyErr_Format(PyExc_TypeError, "conversion from %s to Decimal is not supported", Py_TYPE(v)->tp_name); return NULL; } } /* The context is used during conversion. This function is the equivalent of context.create_decimal(). */ static PyObject * PyDec_FromObject(PyObject *v, PyObject *context) { if (v == NULL) { return PyDec_FromSsize(0, context); } else if (PyDec_Check(v)) { mpd_context_t *ctx = CTX(context); if (mpd_isnan(MPD(v)) && MPD(v)->digits > ctx->prec - ctx->clamp) { /* Special case: too many NaN payload digits */ PyObject *result; if (dec_addstatus(context, MPD_Conversion_syntax)) { return NULL; } result = dec_alloc(); if (result == NULL) { return NULL; } mpd_setspecial(MPD(result), MPD_POS, MPD_NAN); return result; } return dec_apply(v, context); } else if (PyUnicode_Check(v)) { return PyDec_FromUnicode(v, context); } else if (PyLong_Check(v)) { return PyDec_FromLong(v, context); } else if (PyTuple_Check(v) || PyList_Check(v)) { return PyDec_FromSequence(v, context); } else if (PyFloat_Check(v)) { if (dec_addstatus(context, MPD_Float_operation)) { return NULL; } return PyDec_FromFloat(v, context); } else { PyErr_Format(PyExc_TypeError, "conversion from %s to Decimal is not supported", Py_TYPE(v)->tp_name); return NULL; } } static PyObject * dec_new(PyTypeObject *type, PyObject *args, PyObject *kwds) { static char *kwlist[] = {"value", "context", NULL}; PyObject *v = NULL; PyObject *context = Py_None; if (!PyArg_ParseTupleAndKeywords(args, kwds, "|OO", kwlist, &v, &context)) { return NULL; } CONTEXT_CHECK_VA(context); return PyDecType_FromObjectExact(type, v, context); } static PyObject * ctx_create_decimal(PyObject *context, PyObject *args) { PyObject *v = NULL; if (!PyArg_ParseTuple(args, "|O", &v)) { return NULL; } return PyDec_FromObject(v, context); } /******************************************************************************/ /* Implicit conversions to Decimal */ /******************************************************************************/ /* Try to convert PyObject v to a new PyDecObject conv. If the conversion fails, set conv to NULL (exception is set). If the conversion is not implemented, set conv to Py_NotImplemented. */ #define NOT_IMPL 0 #define TYPE_ERR 1 Py_LOCAL_INLINE(int) convert_op(int type_err, PyObject **conv, PyObject *v, PyObject *context) { if (PyDec_Check(v)) { *conv = v; Py_INCREF(v); return 1; } if (PyLong_Check(v)) { *conv = PyDec_FromLongExact(v, context); if (*conv == NULL) { return 0; } return 1; } if (type_err) { PyErr_Format(PyExc_TypeError, "conversion from %s to Decimal is not supported", Py_TYPE(v)->tp_name); } else { Py_INCREF(Py_NotImplemented); *conv = Py_NotImplemented; } return 0; } /* Return NotImplemented for unsupported types. */ #define CONVERT_OP(a, v, context) \ if (!convert_op(NOT_IMPL, a, v, context)) { \ return *(a); \ } #define CONVERT_BINOP(a, b, v, w, context) \ if (!convert_op(NOT_IMPL, a, v, context)) { \ return *(a); \ } \ if (!convert_op(NOT_IMPL, b, w, context)) { \ Py_DECREF(*(a)); \ return *(b); \ } #define CONVERT_TERNOP(a, b, c, v, w, x, context) \ if (!convert_op(NOT_IMPL, a, v, context)) { \ return *(a); \ } \ if (!convert_op(NOT_IMPL, b, w, context)) { \ Py_DECREF(*(a)); \ return *(b); \ } \ if (!convert_op(NOT_IMPL, c, x, context)) { \ Py_DECREF(*(a)); \ Py_DECREF(*(b)); \ return *(c); \ } /* Raise TypeError for unsupported types. */ #define CONVERT_OP_RAISE(a, v, context) \ if (!convert_op(TYPE_ERR, a, v, context)) { \ return NULL; \ } #define CONVERT_BINOP_RAISE(a, b, v, w, context) \ if (!convert_op(TYPE_ERR, a, v, context)) { \ return NULL; \ } \ if (!convert_op(TYPE_ERR, b, w, context)) { \ Py_DECREF(*(a)); \ return NULL; \ } #define CONVERT_TERNOP_RAISE(a, b, c, v, w, x, context) \ if (!convert_op(TYPE_ERR, a, v, context)) { \ return NULL; \ } \ if (!convert_op(TYPE_ERR, b, w, context)) { \ Py_DECREF(*(a)); \ return NULL; \ } \ if (!convert_op(TYPE_ERR, c, x, context)) { \ Py_DECREF(*(a)); \ Py_DECREF(*(b)); \ return NULL; \ } /******************************************************************************/ /* Implicit conversions to Decimal for comparison */ /******************************************************************************/ /* Convert rationals for comparison */ static PyObject *Rational = NULL; static PyObject * multiply_by_denominator(PyObject *v, PyObject *r, PyObject *context) { PyObject *result; PyObject *tmp = NULL; PyObject *denom = NULL; uint32_t status = 0; mpd_context_t maxctx; mpd_ssize_t exp; mpd_t *vv; /* v is not special, r is a rational */ tmp = PyObject_GetAttrString(r, "denominator"); if (tmp == NULL) { return NULL; } denom = PyDec_FromLongExact(tmp, context); Py_DECREF(tmp); if (denom == NULL) { return NULL; } vv = mpd_qncopy(MPD(v)); if (vv == NULL) { Py_DECREF(denom); PyErr_NoMemory(); return NULL; } result = dec_alloc(); if (result == NULL) { Py_DECREF(denom); mpd_del(vv); return NULL; } mpd_maxcontext(&maxctx); /* Prevent Overflow in the following multiplication. The result of the multiplication is only used in mpd_qcmp, which can handle values that are technically out of bounds, like (for 32-bit) 99999999999999999999...99999999e+425000000. */ exp = vv->exp; vv->exp = 0; mpd_qmul(MPD(result), vv, MPD(denom), &maxctx, &status); MPD(result)->exp = exp; Py_DECREF(denom); mpd_del(vv); /* If any status has been accumulated during the multiplication, the result is invalid. This is very unlikely, since even the 32-bit version supports 425000000 digits. */ if (status) { PyErr_SetString(PyExc_ValueError, "exact conversion for comparison failed"); Py_DECREF(result); return NULL; } return result; } static PyObject * numerator_as_decimal(PyObject *r, PyObject *context) { PyObject *tmp, *num; tmp = PyObject_GetAttrString(r, "numerator"); if (tmp == NULL) { return NULL; } num = PyDec_FromLongExact(tmp, context); Py_DECREF(tmp); return num; } /* Convert v and w for comparison. v is a Decimal. If w is a Rational, both v and w have to be transformed. Return 1 for success, with new references to the converted objects in vcmp and wcmp. Return 0 for failure. In that case wcmp is either NULL or Py_NotImplemented (new reference) and vcmp is undefined. */ static int convert_op_cmp(PyObject **vcmp, PyObject **wcmp, PyObject *v, PyObject *w, int op, PyObject *context) { mpd_context_t *ctx = CTX(context); *vcmp = v; if (PyDec_Check(w)) { Py_INCREF(w); *wcmp = w; } else if (PyLong_Check(w)) { *wcmp = PyDec_FromLongExact(w, context); } else if (PyFloat_Check(w)) { if (op != Py_EQ && op != Py_NE && dec_addstatus(context, MPD_Float_operation)) { *wcmp = NULL; } else { ctx->status |= MPD_Float_operation; *wcmp = PyDec_FromFloatExact(w, context); } } else if (PyComplex_Check(w) && (op == Py_EQ || op == Py_NE)) { Py_complex c = PyComplex_AsCComplex(w); if (c.real == -1.0 && PyErr_Occurred()) { *wcmp = NULL; } else if (c.imag == 0.0) { PyObject *tmp = PyFloat_FromDouble(c.real); if (tmp == NULL) { *wcmp = NULL; } else { ctx->status |= MPD_Float_operation; *wcmp = PyDec_FromFloatExact(tmp, context); Py_DECREF(tmp); } } else { Py_INCREF(Py_NotImplemented); *wcmp = Py_NotImplemented; } } else { int is_rational = PyObject_IsInstance(w, Rational); if (is_rational < 0) { *wcmp = NULL; } else if (is_rational > 0) { *wcmp = numerator_as_decimal(w, context); if (*wcmp && !mpd_isspecial(MPD(v))) { *vcmp = multiply_by_denominator(v, w, context); if (*vcmp == NULL) { Py_CLEAR(*wcmp); } } } else { Py_INCREF(Py_NotImplemented); *wcmp = Py_NotImplemented; } } if (*wcmp == NULL || *wcmp == Py_NotImplemented) { return 0; } if (*vcmp == v) { Py_INCREF(v); } return 1; } #define CONVERT_BINOP_CMP(vcmp, wcmp, v, w, op, ctx) \ if (!convert_op_cmp(vcmp, wcmp, v, w, op, ctx)) { \ return *(wcmp); \ } \ /******************************************************************************/ /* Conversions from decimal */ /******************************************************************************/ static PyObject * unicode_fromascii(const char *s, Py_ssize_t size) { PyObject *res; res = PyUnicode_New(size, 127); if (res == NULL) { return NULL; } memcpy(PyUnicode_1BYTE_DATA(res), s, size); return res; } /* PyDecObject as a string. The default module context is only used for the value of 'capitals'. */ static PyObject * dec_str(PyObject *dec) { PyObject *res, *context; mpd_ssize_t size; char *cp; CURRENT_CONTEXT(context); size = mpd_to_sci_size(&cp, MPD(dec), CtxCaps(context)); if (size < 0) { PyErr_NoMemory(); return NULL; } res = unicode_fromascii(cp, size); mpd_free(cp); return res; } /* Representation of a PyDecObject. */ static PyObject * dec_repr(PyObject *dec) { PyObject *res, *context; char *cp; CURRENT_CONTEXT(context); cp = mpd_to_sci(MPD(dec), CtxCaps(context)); if (cp == NULL) { PyErr_NoMemory(); return NULL; } res = PyUnicode_FromFormat("Decimal('%s')", cp); mpd_free(cp); return res; } /* Return a duplicate of src, copy embedded null characters. */ static char * dec_strdup(const char *src, Py_ssize_t size) { char *dest = PyMem_Malloc(size+1); if (dest == NULL) { PyErr_NoMemory(); return NULL; } memcpy(dest, src, size); dest[size] = '\0'; return dest; } static void dec_replace_fillchar(char *dest) { while (*dest != '\0') { if (*dest == '\xff') *dest = '\0'; dest++; } } /* Convert decimal_point or thousands_sep, which may be multibyte or in the range [128, 255], to a UTF8 string. */ static PyObject * dotsep_as_utf8(const char *s) { PyObject *utf8; PyObject *tmp; wchar_t buf[2]; size_t n; n = mbstowcs(buf, s, 2); if (n != 1) { /* Issue #7442 */ PyErr_SetString(PyExc_ValueError, "invalid decimal point or unsupported " "combination of LC_CTYPE and LC_NUMERIC"); return NULL; } tmp = PyUnicode_FromWideChar(buf, n); if (tmp == NULL) { return NULL; } utf8 = PyUnicode_AsUTF8String(tmp); Py_DECREF(tmp); return utf8; } static int dict_get_item_string(PyObject *dict, const char *key, PyObject **valueobj, const char **valuestr) { *valueobj = NULL; PyObject *keyobj = PyUnicode_FromString(key); if (keyobj == NULL) { return -1; } PyObject *value = PyDict_GetItemWithError(dict, keyobj); Py_DECREF(keyobj); if (value == NULL) { if (PyErr_Occurred()) { return -1; } return 0; } value = PyUnicode_AsUTF8String(value); if (value == NULL) { return -1; } *valueobj = value; *valuestr = PyBytes_AS_STRING(value); return 0; } /* Formatted representation of a PyDecObject. */ static PyObject * dec_format(PyObject *dec, PyObject *args) { PyObject *result = NULL; PyObject *override = NULL; PyObject *dot = NULL; PyObject *sep = NULL; PyObject *grouping = NULL; PyObject *fmtarg; PyObject *context; mpd_spec_t spec; char *fmt; char *decstring = NULL; uint32_t status = 0; int replace_fillchar = 0; Py_ssize_t size; CURRENT_CONTEXT(context); if (!PyArg_ParseTuple(args, "O|O", &fmtarg, &override)) { return NULL; } if (PyUnicode_Check(fmtarg)) { fmt = (char *)PyUnicode_AsUTF8AndSize(fmtarg, &size); if (fmt == NULL) { return NULL; } if (size > 0 && fmt[0] == '\0') { /* NUL fill character: must be replaced with a valid UTF-8 char before calling mpd_parse_fmt_str(). */ replace_fillchar = 1; fmt = dec_strdup(fmt, size); if (fmt == NULL) { return NULL; } fmt[0] = '_'; } } else { PyErr_SetString(PyExc_TypeError, "format arg must be str"); return NULL; } if (!mpd_parse_fmt_str(&spec, fmt, CtxCaps(context))) { PyErr_SetString(PyExc_ValueError, "invalid format string"); goto finish; } if (replace_fillchar) { /* In order to avoid clobbering parts of UTF-8 thousands separators or decimal points when the substitution is reversed later, the actual placeholder must be an invalid UTF-8 byte. */ spec.fill[0] = '\xff'; spec.fill[1] = '\0'; } if (override) { /* Values for decimal_point, thousands_sep and grouping can be explicitly specified in the override dict. These values take precedence over the values obtained from localeconv() in mpd_parse_fmt_str(). The feature is not documented and is only used in test_decimal. */ if (!PyDict_Check(override)) { PyErr_SetString(PyExc_TypeError, "optional argument must be a dict"); goto finish; } if (dict_get_item_string(override, "decimal_point", &dot, &spec.dot) || dict_get_item_string(override, "thousands_sep", &sep, &spec.sep) || dict_get_item_string(override, "grouping", &grouping, &spec.grouping)) { goto finish; } if (mpd_validate_lconv(&spec) < 0) { PyErr_SetString(PyExc_ValueError, "invalid override dict"); goto finish; } } else { size_t n = strlen(spec.dot); if (n > 1 || (n == 1 && !isascii((unsigned char)spec.dot[0]))) { /* fix locale dependent non-ascii characters */ dot = dotsep_as_utf8(spec.dot); if (dot == NULL) { goto finish; } spec.dot = PyBytes_AS_STRING(dot); } n = strlen(spec.sep); if (n > 1 || (n == 1 && !isascii((unsigned char)spec.sep[0]))) { /* fix locale dependent non-ascii characters */ sep = dotsep_as_utf8(spec.sep); if (sep == NULL) { goto finish; } spec.sep = PyBytes_AS_STRING(sep); } } decstring = mpd_qformat_spec(MPD(dec), &spec, CTX(context), &status); if (decstring == NULL) { if (status & MPD_Malloc_error) { PyErr_NoMemory(); } else { PyErr_SetString(PyExc_ValueError, "format specification exceeds internal limits of _decimal"); } goto finish; } size = strlen(decstring); if (replace_fillchar) { dec_replace_fillchar(decstring); } result = PyUnicode_DecodeUTF8(decstring, size, NULL); finish: Py_XDECREF(grouping); Py_XDECREF(sep); Py_XDECREF(dot); if (replace_fillchar) PyMem_Free(fmt); if (decstring) mpd_free(decstring); return result; } /* Return a PyLongObject from a PyDecObject, using the specified rounding * mode. The context precision is not observed. */ static PyObject * dec_as_long(PyObject *dec, PyObject *context, int round) { PyLongObject *pylong; digit *ob_digit; size_t n; Py_ssize_t i; mpd_t *x; mpd_context_t workctx; uint32_t status = 0; if (mpd_isspecial(MPD(dec))) { if (mpd_isnan(MPD(dec))) { PyErr_SetString(PyExc_ValueError, "cannot convert NaN to integer"); } else { PyErr_SetString(PyExc_OverflowError, "cannot convert Infinity to integer"); } return NULL; } x = mpd_qnew(); if (x == NULL) { PyErr_NoMemory(); return NULL; } workctx = *CTX(context); workctx.round = round; mpd_qround_to_int(x, MPD(dec), &workctx, &status); if (dec_addstatus(context, status)) { mpd_del(x); return NULL; } status = 0; ob_digit = NULL; #if PYLONG_BITS_IN_DIGIT == 30 n = mpd_qexport_u32(&ob_digit, 0, PyLong_BASE, x, &status); #elif PYLONG_BITS_IN_DIGIT == 15 n = mpd_qexport_u16(&ob_digit, 0, PyLong_BASE, x, &status); #else #error "PYLONG_BITS_IN_DIGIT should be 15 or 30" #endif if (n == SIZE_MAX) { PyErr_NoMemory(); mpd_del(x); return NULL; } assert(n > 0); pylong = _PyLong_New(n); if (pylong == NULL) { mpd_free(ob_digit); mpd_del(x); return NULL; } memcpy(pylong->ob_digit, ob_digit, n * sizeof(digit)); mpd_free(ob_digit); i = n; while ((i > 0) && (pylong->ob_digit[i-1] == 0)) { i--; } Py_SET_SIZE(pylong, i); if (mpd_isnegative(x) && !mpd_iszero(x)) { Py_SET_SIZE(pylong, -i); } mpd_del(x); return (PyObject *) pylong; } /* Convert a Decimal to its exact integer ratio representation. */ static PyObject * dec_as_integer_ratio(PyObject *self, PyObject *args UNUSED) { PyObject *numerator = NULL; PyObject *denominator = NULL; PyObject *exponent = NULL; PyObject *result = NULL; PyObject *tmp; mpd_ssize_t exp; PyObject *context; uint32_t status = 0; if (mpd_isspecial(MPD(self))) { if (mpd_isnan(MPD(self))) { PyErr_SetString(PyExc_ValueError, "cannot convert NaN to integer ratio"); } else { PyErr_SetString(PyExc_OverflowError, "cannot convert Infinity to integer ratio"); } return NULL; } CURRENT_CONTEXT(context); tmp = dec_alloc(); if (tmp == NULL) { return NULL; } if (!mpd_qcopy(MPD(tmp), MPD(self), &status)) { Py_DECREF(tmp); PyErr_NoMemory(); return NULL; } exp = mpd_iszero(MPD(tmp)) ? 0 : MPD(tmp)->exp; MPD(tmp)->exp = 0; /* context and rounding are unused here: the conversion is exact */ numerator = dec_as_long(tmp, context, MPD_ROUND_FLOOR); Py_DECREF(tmp); if (numerator == NULL) { goto error; } exponent = PyLong_FromSsize_t(exp < 0 ? -exp : exp); if (exponent == NULL) { goto error; } tmp = PyLong_FromLong(10); if (tmp == NULL) { goto error; } Py_SETREF(exponent, _py_long_power(tmp, exponent, Py_None)); Py_DECREF(tmp); if (exponent == NULL) { goto error; } if (exp >= 0) { Py_SETREF(numerator, _py_long_multiply(numerator, exponent)); if (numerator == NULL) { goto error; } denominator = PyLong_FromLong(1); if (denominator == NULL) { goto error; } } else { denominator = exponent; exponent = NULL; tmp = _PyLong_GCD(numerator, denominator); if (tmp == NULL) { goto error; } Py_SETREF(numerator, _py_long_floor_divide(numerator, tmp)); Py_SETREF(denominator, _py_long_floor_divide(denominator, tmp)); Py_DECREF(tmp); if (numerator == NULL || denominator == NULL) { goto error; } } result = PyTuple_Pack(2, numerator, denominator); error: Py_XDECREF(exponent); Py_XDECREF(denominator); Py_XDECREF(numerator); return result; } static PyObject * PyDec_ToIntegralValue(PyObject *dec, PyObject *args, PyObject *kwds) { static char *kwlist[] = {"rounding", "context", NULL}; PyObject *result; PyObject *rounding = Py_None; PyObject *context = Py_None; uint32_t status = 0; mpd_context_t workctx; if (!PyArg_ParseTupleAndKeywords(args, kwds, "|OO", kwlist, &rounding, &context)) { return NULL; } CONTEXT_CHECK_VA(context); workctx = *CTX(context); if (rounding != Py_None) { int round = getround(rounding); if (round < 0) { return NULL; } if (!mpd_qsetround(&workctx, round)) { INTERNAL_ERROR_PTR("PyDec_ToIntegralValue"); /* GCOV_NOT_REACHED */ } } result = dec_alloc(); if (result == NULL) { return NULL; } mpd_qround_to_int(MPD(result), MPD(dec), &workctx, &status); if (dec_addstatus(context, status)) { Py_DECREF(result); return NULL; } return result; } static PyObject * PyDec_ToIntegralExact(PyObject *dec, PyObject *args, PyObject *kwds) { static char *kwlist[] = {"rounding", "context", NULL}; PyObject *result; PyObject *rounding = Py_None; PyObject *context = Py_None; uint32_t status = 0; mpd_context_t workctx; if (!PyArg_ParseTupleAndKeywords(args, kwds, "|OO", kwlist, &rounding, &context)) { return NULL; } CONTEXT_CHECK_VA(context); workctx = *CTX(context); if (rounding != Py_None) { int round = getround(rounding); if (round < 0) { return NULL; } if (!mpd_qsetround(&workctx, round)) { INTERNAL_ERROR_PTR("PyDec_ToIntegralExact"); /* GCOV_NOT_REACHED */ } } result = dec_alloc(); if (result == NULL) { return NULL; } mpd_qround_to_intx(MPD(result), MPD(dec), &workctx, &status); if (dec_addstatus(context, status)) { Py_DECREF(result); return NULL; } return result; } static PyObject * PyDec_AsFloat(PyObject *dec) { PyObject *f, *s; if (mpd_isnan(MPD(dec))) { if (mpd_issnan(MPD(dec))) { PyErr_SetString(PyExc_ValueError, "cannot convert signaling NaN to float"); return NULL; } if (mpd_isnegative(MPD(dec))) { s = PyUnicode_FromString("-nan"); } else { s = PyUnicode_FromString("nan"); } } else { s = dec_str(dec); } if (s == NULL) { return NULL; } f = PyFloat_FromString(s); Py_DECREF(s); return f; } static PyObject * PyDec_Round(PyObject *dec, PyObject *args) { PyObject *result; PyObject *x = NULL; uint32_t status = 0; PyObject *context; CURRENT_CONTEXT(context); if (!PyArg_ParseTuple(args, "|O", &x)) { return NULL; } if (x) { mpd_uint_t dq[1] = {1}; mpd_t q = {MPD_STATIC|MPD_CONST_DATA,0,1,1,1,dq}; mpd_ssize_t y; if (!PyLong_Check(x)) { PyErr_SetString(PyExc_TypeError, "optional arg must be an integer"); return NULL; } y = PyLong_AsSsize_t(x); if (y == -1 && PyErr_Occurred()) { return NULL; } result = dec_alloc(); if (result == NULL) { return NULL; } q.exp = (y == MPD_SSIZE_MIN) ? MPD_SSIZE_MAX : -y; mpd_qquantize(MPD(result), MPD(dec), &q, CTX(context), &status); if (dec_addstatus(context, status)) { Py_DECREF(result); return NULL; } return result; } else { return dec_as_long(dec, context, MPD_ROUND_HALF_EVEN); } } static PyTypeObject *DecimalTuple = NULL; /* Return the DecimalTuple representation of a PyDecObject. */ static PyObject * PyDec_AsTuple(PyObject *dec, PyObject *dummy UNUSED) { PyObject *result = NULL; PyObject *sign = NULL; PyObject *coeff = NULL; PyObject *expt = NULL; PyObject *tmp = NULL; mpd_t *x = NULL; char *intstring = NULL; Py_ssize_t intlen, i; x = mpd_qncopy(MPD(dec)); if (x == NULL) { PyErr_NoMemory(); goto out; } sign = PyLong_FromUnsignedLong(mpd_sign(MPD(dec))); if (sign == NULL) { goto out; } if (mpd_isinfinite(x)) { expt = PyUnicode_FromString("F"); if (expt == NULL) { goto out; } /* decimal.py has non-compliant infinity payloads. */ coeff = Py_BuildValue("(i)", 0); if (coeff == NULL) { goto out; } } else { if (mpd_isnan(x)) { expt = PyUnicode_FromString(mpd_isqnan(x)?"n":"N"); } else { expt = PyLong_FromSsize_t(MPD(dec)->exp); } if (expt == NULL) { goto out; } /* coefficient is defined */ if (x->len > 0) { /* make an integer */ x->exp = 0; /* clear NaN and sign */ mpd_clear_flags(x); intstring = mpd_to_sci(x, 1); if (intstring == NULL) { PyErr_NoMemory(); goto out; } intlen = strlen(intstring); coeff = PyTuple_New(intlen); if (coeff == NULL) { goto out; } for (i = 0; i < intlen; i++) { tmp = PyLong_FromLong(intstring[i]-'0'); if (tmp == NULL) { goto out; } PyTuple_SET_ITEM(coeff, i, tmp); } } else { coeff = PyTuple_New(0); if (coeff == NULL) { goto out; } } } result = PyObject_CallFunctionObjArgs((PyObject *)DecimalTuple, sign, coeff, expt, NULL); out: if (x) mpd_del(x); if (intstring) mpd_free(intstring); Py_XDECREF(sign); Py_XDECREF(coeff); Py_XDECREF(expt); return result; } /******************************************************************************/ /* Macros for converting mpdecimal functions to Decimal methods */ /******************************************************************************/ /* Unary number method that uses the default module context. */ #define Dec_UnaryNumberMethod(MPDFUNC) \ static PyObject * \ nm_##MPDFUNC(PyObject *self) \ { \ PyObject *result; \ PyObject *context; \ uint32_t status = 0; \ \ CURRENT_CONTEXT(context); \ if ((result = dec_alloc()) == NULL) { \ return NULL; \ } \ \ MPDFUNC(MPD(result), MPD(self), CTX(context), &status); \ if (dec_addstatus(context, status)) { \ Py_DECREF(result); \ return NULL; \ } \ \ return result; \ } /* Binary number method that uses default module context. */ #define Dec_BinaryNumberMethod(MPDFUNC) \ static PyObject * \ nm_##MPDFUNC(PyObject *self, PyObject *other) \ { \ PyObject *a, *b; \ PyObject *result; \ PyObject *context; \ uint32_t status = 0; \ \ CURRENT_CONTEXT(context) ; \ CONVERT_BINOP(&a, &b, self, other, context); \ \ if ((result = dec_alloc()) == NULL) { \ Py_DECREF(a); \ Py_DECREF(b); \ return NULL; \ } \ \ MPDFUNC(MPD(result), MPD(a), MPD(b), CTX(context), &status); \ Py_DECREF(a); \ Py_DECREF(b); \ if (dec_addstatus(context, status)) { \ Py_DECREF(result); \ return NULL; \ } \ \ return result; \ } /* Boolean function without a context arg. */ #define Dec_BoolFunc(MPDFUNC) \ static PyObject * \ dec_##MPDFUNC(PyObject *self, PyObject *dummy UNUSED) \ { \ return MPDFUNC(MPD(self)) ? incr_true() : incr_false(); \ } /* Boolean function with an optional context arg. */ #define Dec_BoolFuncVA(MPDFUNC) \ static PyObject * \ dec_##MPDFUNC(PyObject *self, PyObject *args, PyObject *kwds) \ { \ static char *kwlist[] = {"context", NULL}; \ PyObject *context = Py_None; \ \ if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O", kwlist, \ &context)) { \ return NULL; \ } \ CONTEXT_CHECK_VA(context); \ \ return MPDFUNC(MPD(self), CTX(context)) ? incr_true() : incr_false(); \ } /* Unary function with an optional context arg. */ #define Dec_UnaryFuncVA(MPDFUNC) \ static PyObject * \ dec_##MPDFUNC(PyObject *self, PyObject *args, PyObject *kwds) \ { \ static char *kwlist[] = {"context", NULL}; \ PyObject *result; \ PyObject *context = Py_None; \ uint32_t status = 0; \ \ if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O", kwlist, \ &context)) { \ return NULL; \ } \ CONTEXT_CHECK_VA(context); \ \ if ((result = dec_alloc()) == NULL) { \ return NULL; \ } \ \ MPDFUNC(MPD(result), MPD(self), CTX(context), &status); \ if (dec_addstatus(context, status)) { \ Py_DECREF(result); \ return NULL; \ } \ \ return result; \ } /* Binary function with an optional context arg. */ #define Dec_BinaryFuncVA(MPDFUNC) \ static PyObject * \ dec_##MPDFUNC(PyObject *self, PyObject *args, PyObject *kwds) \ { \ static char *kwlist[] = {"other", "context", NULL}; \ PyObject *other; \ PyObject *a, *b; \ PyObject *result; \ PyObject *context = Py_None; \ uint32_t status = 0; \ \ if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O", kwlist, \ &other, &context)) { \ return NULL; \ } \ CONTEXT_CHECK_VA(context); \ CONVERT_BINOP_RAISE(&a, &b, self, other, context); \ \ if ((result = dec_alloc()) == NULL) { \ Py_DECREF(a); \ Py_DECREF(b); \ return NULL; \ } \ \ MPDFUNC(MPD(result), MPD(a), MPD(b), CTX(context), &status); \ Py_DECREF(a); \ Py_DECREF(b); \ if (dec_addstatus(context, status)) { \ Py_DECREF(result); \ return NULL; \ } \ \ return result; \ } /* Binary function with an optional context arg. Actual MPDFUNC does NOT take a context. The context is used to record InvalidOperation if the second operand cannot be converted exactly. */ #define Dec_BinaryFuncVA_NO_CTX(MPDFUNC) \ static PyObject * \ dec_##MPDFUNC(PyObject *self, PyObject *args, PyObject *kwds) \ { \ static char *kwlist[] = {"other", "context", NULL}; \ PyObject *context = Py_None; \ PyObject *other; \ PyObject *a, *b; \ PyObject *result; \ \ if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O", kwlist, \ &other, &context)) { \ return NULL; \ } \ CONTEXT_CHECK_VA(context); \ CONVERT_BINOP_RAISE(&a, &b, self, other, context); \ \ if ((result = dec_alloc()) == NULL) { \ Py_DECREF(a); \ Py_DECREF(b); \ return NULL; \ } \ \ MPDFUNC(MPD(result), MPD(a), MPD(b)); \ Py_DECREF(a); \ Py_DECREF(b); \ \ return result; \ } /* Ternary function with an optional context arg. */ #define Dec_TernaryFuncVA(MPDFUNC) \ static PyObject * \ dec_##MPDFUNC(PyObject *self, PyObject *args, PyObject *kwds) \ { \ static char *kwlist[] = {"other", "third", "context", NULL}; \ PyObject *other, *third; \ PyObject *a, *b, *c; \ PyObject *result; \ PyObject *context = Py_None; \ uint32_t status = 0; \ \ if (!PyArg_ParseTupleAndKeywords(args, kwds, "OO|O", kwlist, \ &other, &third, &context)) { \ return NULL; \ } \ CONTEXT_CHECK_VA(context); \ CONVERT_TERNOP_RAISE(&a, &b, &c, self, other, third, context); \ \ if ((result = dec_alloc()) == NULL) { \ Py_DECREF(a); \ Py_DECREF(b); \ Py_DECREF(c); \ return NULL; \ } \ \ MPDFUNC(MPD(result), MPD(a), MPD(b), MPD(c), CTX(context), &status); \ Py_DECREF(a); \ Py_DECREF(b); \ Py_DECREF(c); \ if (dec_addstatus(context, status)) { \ Py_DECREF(result); \ return NULL; \ } \ \ return result; \ } /**********************************************/ /* Number methods */ /**********************************************/ Dec_UnaryNumberMethod(mpd_qminus) Dec_UnaryNumberMethod(mpd_qplus) Dec_UnaryNumberMethod(mpd_qabs) Dec_BinaryNumberMethod(mpd_qadd) Dec_BinaryNumberMethod(mpd_qsub) Dec_BinaryNumberMethod(mpd_qmul) Dec_BinaryNumberMethod(mpd_qdiv) Dec_BinaryNumberMethod(mpd_qrem) Dec_BinaryNumberMethod(mpd_qdivint) static PyObject * nm_dec_as_long(PyObject *dec) { PyObject *context; CURRENT_CONTEXT(context); return dec_as_long(dec, context, MPD_ROUND_DOWN); } static int nm_nonzero(PyObject *v) { return !mpd_iszero(MPD(v)); } static PyObject * nm_mpd_qdivmod(PyObject *v, PyObject *w) { PyObject *a, *b; PyObject *q, *r; PyObject *context; uint32_t status = 0; PyObject *ret; CURRENT_CONTEXT(context); CONVERT_BINOP(&a, &b, v, w, context); q = dec_alloc(); if (q == NULL) { Py_DECREF(a); Py_DECREF(b); return NULL; } r = dec_alloc(); if (r == NULL) { Py_DECREF(a); Py_DECREF(b); Py_DECREF(q); return NULL; } mpd_qdivmod(MPD(q), MPD(r), MPD(a), MPD(b), CTX(context), &status); Py_DECREF(a); Py_DECREF(b); if (dec_addstatus(context, status)) { Py_DECREF(r); Py_DECREF(q); return NULL; } ret = Py_BuildValue("(OO)", q, r); Py_DECREF(r); Py_DECREF(q); return ret; } static PyObject * nm_mpd_qpow(PyObject *base, PyObject *exp, PyObject *mod) { PyObject *a, *b, *c = NULL; PyObject *result; PyObject *context; uint32_t status = 0; CURRENT_CONTEXT(context); CONVERT_BINOP(&a, &b, base, exp, context); if (mod != Py_None) { if (!convert_op(NOT_IMPL, &c, mod, context)) { Py_DECREF(a); Py_DECREF(b); return c; } } result = dec_alloc(); if (result == NULL) { Py_DECREF(a); Py_DECREF(b); Py_XDECREF(c); return NULL; } if (c == NULL) { mpd_qpow(MPD(result), MPD(a), MPD(b), CTX(context), &status); } else { mpd_qpowmod(MPD(result), MPD(a), MPD(b), MPD(c), CTX(context), &status); Py_DECREF(c); } Py_DECREF(a); Py_DECREF(b); if (dec_addstatus(context, status)) { Py_DECREF(result); return NULL; } return result; } /******************************************************************************/ /* Decimal Methods */ /******************************************************************************/ /* Unary arithmetic functions, optional context arg */ Dec_UnaryFuncVA(mpd_qexp) Dec_UnaryFuncVA(mpd_qln) Dec_UnaryFuncVA(mpd_qlog10) Dec_UnaryFuncVA(mpd_qnext_minus) Dec_UnaryFuncVA(mpd_qnext_plus) Dec_UnaryFuncVA(mpd_qreduce) Dec_UnaryFuncVA(mpd_qsqrt) /* Binary arithmetic functions, optional context arg */ Dec_BinaryFuncVA(mpd_qcompare) Dec_BinaryFuncVA(mpd_qcompare_signal) Dec_BinaryFuncVA(mpd_qmax) Dec_BinaryFuncVA(mpd_qmax_mag) Dec_BinaryFuncVA(mpd_qmin) Dec_BinaryFuncVA(mpd_qmin_mag) Dec_BinaryFuncVA(mpd_qnext_toward) Dec_BinaryFuncVA(mpd_qrem_near) /* Ternary arithmetic functions, optional context arg */ Dec_TernaryFuncVA(mpd_qfma) /* Boolean functions, no context arg */ Dec_BoolFunc(mpd_iscanonical) Dec_BoolFunc(mpd_isfinite) Dec_BoolFunc(mpd_isinfinite) Dec_BoolFunc(mpd_isnan) Dec_BoolFunc(mpd_isqnan) Dec_BoolFunc(mpd_issnan) Dec_BoolFunc(mpd_issigned) Dec_BoolFunc(mpd_iszero) /* Boolean functions, optional context arg */ Dec_BoolFuncVA(mpd_isnormal) Dec_BoolFuncVA(mpd_issubnormal) /* Unary functions, no context arg */ static PyObject * dec_mpd_adjexp(PyObject *self, PyObject *dummy UNUSED) { mpd_ssize_t retval; if (mpd_isspecial(MPD(self))) { retval = 0; } else { retval = mpd_adjexp(MPD(self)); } return PyLong_FromSsize_t(retval); } static PyObject * dec_canonical(PyObject *self, PyObject *dummy UNUSED) { Py_INCREF(self); return self; } static PyObject * dec_conjugate(PyObject *self, PyObject *dummy UNUSED) { Py_INCREF(self); return self; } static PyObject * dec_mpd_radix(PyObject *self UNUSED, PyObject *dummy UNUSED) { PyObject *result; result = dec_alloc(); if (result == NULL) { return NULL; } _dec_settriple(result, MPD_POS, 10, 0); return result; } static PyObject * dec_mpd_qcopy_abs(PyObject *self, PyObject *dummy UNUSED) { PyObject *result; uint32_t status = 0; if ((result = dec_alloc()) == NULL) { return NULL; } mpd_qcopy_abs(MPD(result), MPD(self), &status); if (status & MPD_Malloc_error) { Py_DECREF(result); PyErr_NoMemory(); return NULL; } return result; } static PyObject * dec_mpd_qcopy_negate(PyObject *self, PyObject *dummy UNUSED) { PyObject *result; uint32_t status = 0; if ((result = dec_alloc()) == NULL) { return NULL; } mpd_qcopy_negate(MPD(result), MPD(self), &status); if (status & MPD_Malloc_error) { Py_DECREF(result); PyErr_NoMemory(); return NULL; } return result; } /* Unary functions, optional context arg */ Dec_UnaryFuncVA(mpd_qinvert) Dec_UnaryFuncVA(mpd_qlogb) static PyObject * dec_mpd_class(PyObject *self, PyObject *args, PyObject *kwds) { static char *kwlist[] = {"context", NULL}; PyObject *context = Py_None; const char *cp; if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O", kwlist, &context)) { return NULL; } CONTEXT_CHECK_VA(context); cp = mpd_class(MPD(self), CTX(context)); return PyUnicode_FromString(cp); } static PyObject * dec_mpd_to_eng(PyObject *self, PyObject *args, PyObject *kwds) { static char *kwlist[] = {"context", NULL}; PyObject *result; PyObject *context = Py_None; mpd_ssize_t size; char *s; if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O", kwlist, &context)) { return NULL; } CONTEXT_CHECK_VA(context); size = mpd_to_eng_size(&s, MPD(self), CtxCaps(context)); if (size < 0) { PyErr_NoMemory(); return NULL; } result = unicode_fromascii(s, size); mpd_free(s); return result; } /* Binary functions, optional context arg for conversion errors */ Dec_BinaryFuncVA_NO_CTX(mpd_compare_total) Dec_BinaryFuncVA_NO_CTX(mpd_compare_total_mag) static PyObject * dec_mpd_qcopy_sign(PyObject *self, PyObject *args, PyObject *kwds) { static char *kwlist[] = {"other", "context", NULL}; PyObject *other; PyObject *a, *b; PyObject *result; PyObject *context = Py_None; uint32_t status = 0; if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O", kwlist, &other, &context)) { return NULL; } CONTEXT_CHECK_VA(context); CONVERT_BINOP_RAISE(&a, &b, self, other, context); result = dec_alloc(); if (result == NULL) { Py_DECREF(a); Py_DECREF(b); return NULL; } mpd_qcopy_sign(MPD(result), MPD(a), MPD(b), &status); Py_DECREF(a); Py_DECREF(b); if (dec_addstatus(context, status)) { Py_DECREF(result); return NULL; } return result; } static PyObject * dec_mpd_same_quantum(PyObject *self, PyObject *args, PyObject *kwds) { static char *kwlist[] = {"other", "context", NULL}; PyObject *other; PyObject *a, *b; PyObject *result; PyObject *context = Py_None; if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O", kwlist, &other, &context)) { return NULL; } CONTEXT_CHECK_VA(context); CONVERT_BINOP_RAISE(&a, &b, self, other, context); result = mpd_same_quantum(MPD(a), MPD(b)) ? incr_true() : incr_false(); Py_DECREF(a); Py_DECREF(b); return result; } /* Binary functions, optional context arg */ Dec_BinaryFuncVA(mpd_qand) Dec_BinaryFuncVA(mpd_qor) Dec_BinaryFuncVA(mpd_qxor) Dec_BinaryFuncVA(mpd_qrotate) Dec_BinaryFuncVA(mpd_qscaleb) Dec_BinaryFuncVA(mpd_qshift) static PyObject * dec_mpd_qquantize(PyObject *v, PyObject *args, PyObject *kwds) { static char *kwlist[] = {"exp", "rounding", "context", NULL}; PyObject *rounding = Py_None; PyObject *context = Py_None; PyObject *w, *a, *b; PyObject *result; uint32_t status = 0; mpd_context_t workctx; if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|OO", kwlist, &w, &rounding, &context)) { return NULL; } CONTEXT_CHECK_VA(context); workctx = *CTX(context); if (rounding != Py_None) { int round = getround(rounding); if (round < 0) { return NULL; } if (!mpd_qsetround(&workctx, round)) { INTERNAL_ERROR_PTR("dec_mpd_qquantize"); /* GCOV_NOT_REACHED */ } } CONVERT_BINOP_RAISE(&a, &b, v, w, context); result = dec_alloc(); if (result == NULL) { Py_DECREF(a); Py_DECREF(b); return NULL; } mpd_qquantize(MPD(result), MPD(a), MPD(b), &workctx, &status); Py_DECREF(a); Py_DECREF(b); if (dec_addstatus(context, status)) { Py_DECREF(result); return NULL; } return result; } /* Special methods */ static PyObject * dec_richcompare(PyObject *v, PyObject *w, int op) { PyObject *a; PyObject *b; PyObject *context; uint32_t status = 0; int a_issnan, b_issnan; int r; assert(PyDec_Check(v)); CURRENT_CONTEXT(context); CONVERT_BINOP_CMP(&a, &b, v, w, op, context); a_issnan = mpd_issnan(MPD(a)); b_issnan = mpd_issnan(MPD(b)); r = mpd_qcmp(MPD(a), MPD(b), &status); Py_DECREF(a); Py_DECREF(b); if (r == INT_MAX) { /* sNaNs or op={le,ge,lt,gt} always signal. */ if (a_issnan || b_issnan || (op != Py_EQ && op != Py_NE)) { if (dec_addstatus(context, status)) { return NULL; } } /* qNaN comparison with op={eq,ne} or comparison * with InvalidOperation disabled. */ return (op == Py_NE) ? incr_true() : incr_false(); } switch (op) { case Py_EQ: r = (r == 0); break; case Py_NE: r = (r != 0); break; case Py_LE: r = (r <= 0); break; case Py_GE: r = (r >= 0); break; case Py_LT: r = (r == -1); break; case Py_GT: r = (r == 1); break; } return PyBool_FromLong(r); } /* __ceil__ */ static PyObject * dec_ceil(PyObject *self, PyObject *dummy UNUSED) { PyObject *context; CURRENT_CONTEXT(context); return dec_as_long(self, context, MPD_ROUND_CEILING); } /* __complex__ */ static PyObject * dec_complex(PyObject *self, PyObject *dummy UNUSED) { PyObject *f; double x; f = PyDec_AsFloat(self); if (f == NULL) { return NULL; } x = PyFloat_AsDouble(f); Py_DECREF(f); if (x == -1.0 && PyErr_Occurred()) { return NULL; } return PyComplex_FromDoubles(x, 0); } /* __copy__ and __deepcopy__ */ static PyObject * dec_copy(PyObject *self, PyObject *dummy UNUSED) { Py_INCREF(self); return self; } /* __floor__ */ static PyObject * dec_floor(PyObject *self, PyObject *dummy UNUSED) { PyObject *context; CURRENT_CONTEXT(context); return dec_as_long(self, context, MPD_ROUND_FLOOR); } /* Always uses the module context */ static Py_hash_t _dec_hash(PyDecObject *v) { #if defined(CONFIG_64) && _PyHASH_BITS == 61 /* 2**61 - 1 */ mpd_uint_t p_data[1] = {2305843009213693951ULL}; mpd_t p = {MPD_POS|MPD_STATIC|MPD_CONST_DATA, 0, 19, 1, 1, p_data}; /* Inverse of 10 modulo p */ mpd_uint_t inv10_p_data[1] = {2075258708292324556ULL}; mpd_t inv10_p = {MPD_POS|MPD_STATIC|MPD_CONST_DATA, 0, 19, 1, 1, inv10_p_data}; #elif defined(CONFIG_32) && _PyHASH_BITS == 31 /* 2**31 - 1 */ mpd_uint_t p_data[2] = {147483647UL, 2}; mpd_t p = {MPD_POS|MPD_STATIC|MPD_CONST_DATA, 0, 10, 2, 2, p_data}; /* Inverse of 10 modulo p */ mpd_uint_t inv10_p_data[2] = {503238553UL, 1}; mpd_t inv10_p = {MPD_POS|MPD_STATIC|MPD_CONST_DATA, 0, 10, 2, 2, inv10_p_data}; #else #error "No valid combination of CONFIG_64, CONFIG_32 and _PyHASH_BITS" #endif const Py_hash_t py_hash_inf = 314159; mpd_uint_t ten_data[1] = {10}; mpd_t ten = {MPD_POS|MPD_STATIC|MPD_CONST_DATA, 0, 2, 1, 1, ten_data}; Py_hash_t result; mpd_t *exp_hash = NULL; mpd_t *tmp = NULL; mpd_ssize_t exp; uint32_t status = 0; mpd_context_t maxctx; if (mpd_isspecial(MPD(v))) { if (mpd_issnan(MPD(v))) { PyErr_SetString(PyExc_TypeError, "Cannot hash a signaling NaN value"); return -1; } else if (mpd_isnan(MPD(v))) { return _Py_HashPointer(v); } else { return py_hash_inf * mpd_arith_sign(MPD(v)); } } mpd_maxcontext(&maxctx); exp_hash = mpd_qnew(); if (exp_hash == NULL) { goto malloc_error; } tmp = mpd_qnew(); if (tmp == NULL) { goto malloc_error; } /* * exp(v): exponent of v * int(v): coefficient of v */ exp = MPD(v)->exp; if (exp >= 0) { /* 10**exp(v) % p */ mpd_qsset_ssize(tmp, exp, &maxctx, &status); mpd_qpowmod(exp_hash, &ten, tmp, &p, &maxctx, &status); } else { /* inv10_p**(-exp(v)) % p */ mpd_qsset_ssize(tmp, -exp, &maxctx, &status); mpd_qpowmod(exp_hash, &inv10_p, tmp, &p, &maxctx, &status); } /* hash = (int(v) * exp_hash) % p */ if (!mpd_qcopy(tmp, MPD(v), &status)) { goto malloc_error; } tmp->exp = 0; mpd_set_positive(tmp); maxctx.prec = MPD_MAX_PREC + 21; maxctx.emax = MPD_MAX_EMAX + 21; maxctx.emin = MPD_MIN_EMIN - 21; mpd_qmul(tmp, tmp, exp_hash, &maxctx, &status); mpd_qrem(tmp, tmp, &p, &maxctx, &status); result = mpd_qget_ssize(tmp, &status); result = mpd_ispositive(MPD(v)) ? result : -result; result = (result == -1) ? -2 : result; if (status != 0) { if (status & MPD_Malloc_error) { goto malloc_error; } else { PyErr_SetString(PyExc_RuntimeError, /* GCOV_NOT_REACHED */ "dec_hash: internal error: please report"); /* GCOV_NOT_REACHED */ } result = -1; /* GCOV_NOT_REACHED */ } finish: if (exp_hash) mpd_del(exp_hash); if (tmp) mpd_del(tmp); return result; malloc_error: PyErr_NoMemory(); result = -1; goto finish; } static Py_hash_t dec_hash(PyDecObject *self) { if (self->hash == -1) { self->hash = _dec_hash(self); } return self->hash; } /* __reduce__ */ static PyObject * dec_reduce(PyObject *self, PyObject *dummy UNUSED) { PyObject *result, *str; str = dec_str(self); if (str == NULL) { return NULL; } result = Py_BuildValue("O(O)", Py_TYPE(self), str); Py_DECREF(str); return result; } /* __sizeof__ */ static PyObject * dec_sizeof(PyObject *v, PyObject *dummy UNUSED) { Py_ssize_t res; res = _PyObject_SIZE(Py_TYPE(v)); if (mpd_isdynamic_data(MPD(v))) { res += MPD(v)->alloc * sizeof(mpd_uint_t); } return PyLong_FromSsize_t(res); } /* __trunc__ */ static PyObject * dec_trunc(PyObject *self, PyObject *dummy UNUSED) { PyObject *context; CURRENT_CONTEXT(context); return dec_as_long(self, context, MPD_ROUND_DOWN); } /* real and imag */ static PyObject * dec_real(PyObject *self, void *closure UNUSED) { Py_INCREF(self); return self; } static PyObject * dec_imag(PyObject *self UNUSED, void *closure UNUSED) { PyObject *result; result = dec_alloc(); if (result == NULL) { return NULL; } _dec_settriple(result, MPD_POS, 0, 0); return result; } static PyGetSetDef dec_getsets [] = { { "real", (getter)dec_real, NULL, NULL, NULL}, { "imag", (getter)dec_imag, NULL, NULL, NULL}, {NULL} }; static PyNumberMethods dec_number_methods = { (binaryfunc) nm_mpd_qadd, (binaryfunc) nm_mpd_qsub, (binaryfunc) nm_mpd_qmul, (binaryfunc) nm_mpd_qrem, (binaryfunc) nm_mpd_qdivmod, (ternaryfunc) nm_mpd_qpow, (unaryfunc) nm_mpd_qminus, (unaryfunc) nm_mpd_qplus, (unaryfunc) nm_mpd_qabs, (inquiry) nm_nonzero, (unaryfunc) 0, /* no bit-complement */ (binaryfunc) 0, /* no shiftl */ (binaryfunc) 0, /* no shiftr */ (binaryfunc) 0, /* no bit-and */ (binaryfunc) 0, /* no bit-xor */ (binaryfunc) 0, /* no bit-ior */ (unaryfunc) nm_dec_as_long, 0, /* nb_reserved */ (unaryfunc) PyDec_AsFloat, 0, /* binaryfunc nb_inplace_add; */ 0, /* binaryfunc nb_inplace_subtract; */ 0, /* binaryfunc nb_inplace_multiply; */ 0, /* binaryfunc nb_inplace_remainder; */ 0, /* ternaryfunc nb_inplace_power; */ 0, /* binaryfunc nb_inplace_lshift; */ 0, /* binaryfunc nb_inplace_rshift; */ 0, /* binaryfunc nb_inplace_and; */ 0, /* binaryfunc nb_inplace_xor; */ 0, /* binaryfunc nb_inplace_or; */ (binaryfunc) nm_mpd_qdivint, /* binaryfunc nb_floor_divide; */ (binaryfunc) nm_mpd_qdiv, /* binaryfunc nb_true_divide; */ 0, /* binaryfunc nb_inplace_floor_divide; */ 0, /* binaryfunc nb_inplace_true_divide; */ }; static PyMethodDef dec_methods [] = { /* Unary arithmetic functions, optional context arg */ { "exp", (PyCFunction)(void(*)(void))dec_mpd_qexp, METH_VARARGS|METH_KEYWORDS, doc_exp }, { "ln", (PyCFunction)(void(*)(void))dec_mpd_qln, METH_VARARGS|METH_KEYWORDS, doc_ln }, { "log10", (PyCFunction)(void(*)(void))dec_mpd_qlog10, METH_VARARGS|METH_KEYWORDS, doc_log10 }, { "next_minus", (PyCFunction)(void(*)(void))dec_mpd_qnext_minus, METH_VARARGS|METH_KEYWORDS, doc_next_minus }, { "next_plus", (PyCFunction)(void(*)(void))dec_mpd_qnext_plus, METH_VARARGS|METH_KEYWORDS, doc_next_plus }, { "normalize", (PyCFunction)(void(*)(void))dec_mpd_qreduce, METH_VARARGS|METH_KEYWORDS, doc_normalize }, { "to_integral", (PyCFunction)(void(*)(void))PyDec_ToIntegralValue, METH_VARARGS|METH_KEYWORDS, doc_to_integral }, { "to_integral_exact", (PyCFunction)(void(*)(void))PyDec_ToIntegralExact, METH_VARARGS|METH_KEYWORDS, doc_to_integral_exact }, { "to_integral_value", (PyCFunction)(void(*)(void))PyDec_ToIntegralValue, METH_VARARGS|METH_KEYWORDS, doc_to_integral_value }, { "sqrt", (PyCFunction)(void(*)(void))dec_mpd_qsqrt, METH_VARARGS|METH_KEYWORDS, doc_sqrt }, /* Binary arithmetic functions, optional context arg */ { "compare", (PyCFunction)(void(*)(void))dec_mpd_qcompare, METH_VARARGS|METH_KEYWORDS, doc_compare }, { "compare_signal", (PyCFunction)(void(*)(void))dec_mpd_qcompare_signal, METH_VARARGS|METH_KEYWORDS, doc_compare_signal }, { "max", (PyCFunction)(void(*)(void))dec_mpd_qmax, METH_VARARGS|METH_KEYWORDS, doc_max }, { "max_mag", (PyCFunction)(void(*)(void))dec_mpd_qmax_mag, METH_VARARGS|METH_KEYWORDS, doc_max_mag }, { "min", (PyCFunction)(void(*)(void))dec_mpd_qmin, METH_VARARGS|METH_KEYWORDS, doc_min }, { "min_mag", (PyCFunction)(void(*)(void))dec_mpd_qmin_mag, METH_VARARGS|METH_KEYWORDS, doc_min_mag }, { "next_toward", (PyCFunction)(void(*)(void))dec_mpd_qnext_toward, METH_VARARGS|METH_KEYWORDS, doc_next_toward }, { "quantize", (PyCFunction)(void(*)(void))dec_mpd_qquantize, METH_VARARGS|METH_KEYWORDS, doc_quantize }, { "remainder_near", (PyCFunction)(void(*)(void))dec_mpd_qrem_near, METH_VARARGS|METH_KEYWORDS, doc_remainder_near }, /* Ternary arithmetic functions, optional context arg */ { "fma", (PyCFunction)(void(*)(void))dec_mpd_qfma, METH_VARARGS|METH_KEYWORDS, doc_fma }, /* Boolean functions, no context arg */ { "is_canonical", dec_mpd_iscanonical, METH_NOARGS, doc_is_canonical }, { "is_finite", dec_mpd_isfinite, METH_NOARGS, doc_is_finite }, { "is_infinite", dec_mpd_isinfinite, METH_NOARGS, doc_is_infinite }, { "is_nan", dec_mpd_isnan, METH_NOARGS, doc_is_nan }, { "is_qnan", dec_mpd_isqnan, METH_NOARGS, doc_is_qnan }, { "is_snan", dec_mpd_issnan, METH_NOARGS, doc_is_snan }, { "is_signed", dec_mpd_issigned, METH_NOARGS, doc_is_signed }, { "is_zero", dec_mpd_iszero, METH_NOARGS, doc_is_zero }, /* Boolean functions, optional context arg */ { "is_normal", (PyCFunction)(void(*)(void))dec_mpd_isnormal, METH_VARARGS|METH_KEYWORDS, doc_is_normal }, { "is_subnormal", (PyCFunction)(void(*)(void))dec_mpd_issubnormal, METH_VARARGS|METH_KEYWORDS, doc_is_subnormal }, /* Unary functions, no context arg */ { "adjusted", dec_mpd_adjexp, METH_NOARGS, doc_adjusted }, { "canonical", dec_canonical, METH_NOARGS, doc_canonical }, { "conjugate", dec_conjugate, METH_NOARGS, doc_conjugate }, { "radix", dec_mpd_radix, METH_NOARGS, doc_radix }, /* Unary functions, optional context arg for conversion errors */ { "copy_abs", dec_mpd_qcopy_abs, METH_NOARGS, doc_copy_abs }, { "copy_negate", dec_mpd_qcopy_negate, METH_NOARGS, doc_copy_negate }, /* Unary functions, optional context arg */ { "logb", (PyCFunction)(void(*)(void))dec_mpd_qlogb, METH_VARARGS|METH_KEYWORDS, doc_logb }, { "logical_invert", (PyCFunction)(void(*)(void))dec_mpd_qinvert, METH_VARARGS|METH_KEYWORDS, doc_logical_invert }, { "number_class", (PyCFunction)(void(*)(void))dec_mpd_class, METH_VARARGS|METH_KEYWORDS, doc_number_class }, { "to_eng_string", (PyCFunction)(void(*)(void))dec_mpd_to_eng, METH_VARARGS|METH_KEYWORDS, doc_to_eng_string }, /* Binary functions, optional context arg for conversion errors */ { "compare_total", (PyCFunction)(void(*)(void))dec_mpd_compare_total, METH_VARARGS|METH_KEYWORDS, doc_compare_total }, { "compare_total_mag", (PyCFunction)(void(*)(void))dec_mpd_compare_total_mag, METH_VARARGS|METH_KEYWORDS, doc_compare_total_mag }, { "copy_sign", (PyCFunction)(void(*)(void))dec_mpd_qcopy_sign, METH_VARARGS|METH_KEYWORDS, doc_copy_sign }, { "same_quantum", (PyCFunction)(void(*)(void))dec_mpd_same_quantum, METH_VARARGS|METH_KEYWORDS, doc_same_quantum }, /* Binary functions, optional context arg */ { "logical_and", (PyCFunction)(void(*)(void))dec_mpd_qand, METH_VARARGS|METH_KEYWORDS, doc_logical_and }, { "logical_or", (PyCFunction)(void(*)(void))dec_mpd_qor, METH_VARARGS|METH_KEYWORDS, doc_logical_or }, { "logical_xor", (PyCFunction)(void(*)(void))dec_mpd_qxor, METH_VARARGS|METH_KEYWORDS, doc_logical_xor }, { "rotate", (PyCFunction)(void(*)(void))dec_mpd_qrotate, METH_VARARGS|METH_KEYWORDS, doc_rotate }, { "scaleb", (PyCFunction)(void(*)(void))dec_mpd_qscaleb, METH_VARARGS|METH_KEYWORDS, doc_scaleb }, { "shift", (PyCFunction)(void(*)(void))dec_mpd_qshift, METH_VARARGS|METH_KEYWORDS, doc_shift }, /* Miscellaneous */ { "from_float", dec_from_float, METH_O|METH_CLASS, doc_from_float }, { "as_tuple", PyDec_AsTuple, METH_NOARGS, doc_as_tuple }, { "as_integer_ratio", dec_as_integer_ratio, METH_NOARGS, doc_as_integer_ratio }, /* Special methods */ { "__copy__", dec_copy, METH_NOARGS, NULL }, { "__deepcopy__", dec_copy, METH_O, NULL }, { "__format__", dec_format, METH_VARARGS, NULL }, { "__reduce__", dec_reduce, METH_NOARGS, NULL }, { "__round__", PyDec_Round, METH_VARARGS, NULL }, { "__ceil__", dec_ceil, METH_NOARGS, NULL }, { "__floor__", dec_floor, METH_NOARGS, NULL }, { "__trunc__", dec_trunc, METH_NOARGS, NULL }, { "__complex__", dec_complex, METH_NOARGS, NULL }, { "__sizeof__", dec_sizeof, METH_NOARGS, NULL }, { NULL, NULL, 1 } }; static PyTypeObject PyDec_Type = { PyVarObject_HEAD_INIT(NULL, 0) "decimal.Decimal", /* tp_name */ sizeof(PyDecObject), /* tp_basicsize */ 0, /* tp_itemsize */ (destructor) dec_dealloc, /* tp_dealloc */ 0, /* tp_vectorcall_offset */ (getattrfunc) 0, /* tp_getattr */ (setattrfunc) 0, /* tp_setattr */ 0, /* tp_as_async */ (reprfunc) dec_repr, /* tp_repr */ &dec_number_methods, /* tp_as_number */ 0, /* tp_as_sequence */ 0, /* tp_as_mapping */ (hashfunc) dec_hash, /* tp_hash */ 0, /* tp_call */ (reprfunc) dec_str, /* tp_str */ (getattrofunc) PyObject_GenericGetAttr, /* tp_getattro */ (setattrofunc) 0, /* tp_setattro */ (PyBufferProcs *) 0, /* tp_as_buffer */ (Py_TPFLAGS_DEFAULT| Py_TPFLAGS_BASETYPE), /* tp_flags */ doc_decimal, /* tp_doc */ 0, /* tp_traverse */ 0, /* tp_clear */ dec_richcompare, /* tp_richcompare */ 0, /* tp_weaklistoffset */ 0, /* tp_iter */ 0, /* tp_iternext */ dec_methods, /* tp_methods */ 0, /* tp_members */ dec_getsets, /* tp_getset */ 0, /* tp_base */ 0, /* tp_dict */ 0, /* tp_descr_get */ 0, /* tp_descr_set */ 0, /* tp_dictoffset */ 0, /* tp_init */ 0, /* tp_alloc */ dec_new, /* tp_new */ PyObject_Del, /* tp_free */ }; /******************************************************************************/ /* Context Object, Part 2 */ /******************************************************************************/ /************************************************************************/ /* Macros for converting mpdecimal functions to Context methods */ /************************************************************************/ /* Boolean context method. */ #define DecCtx_BoolFunc(MPDFUNC) \ static PyObject * \ ctx_##MPDFUNC(PyObject *context, PyObject *v) \ { \ PyObject *ret; \ PyObject *a; \ \ CONVERT_OP_RAISE(&a, v, context); \ \ ret = MPDFUNC(MPD(a), CTX(context)) ? incr_true() : incr_false(); \ Py_DECREF(a); \ return ret; \ } /* Boolean context method. MPDFUNC does NOT use a context. */ #define DecCtx_BoolFunc_NO_CTX(MPDFUNC) \ static PyObject * \ ctx_##MPDFUNC(PyObject *context, PyObject *v) \ { \ PyObject *ret; \ PyObject *a; \ \ CONVERT_OP_RAISE(&a, v, context); \ \ ret = MPDFUNC(MPD(a)) ? incr_true() : incr_false(); \ Py_DECREF(a); \ return ret; \ } /* Unary context method. */ #define DecCtx_UnaryFunc(MPDFUNC) \ static PyObject * \ ctx_##MPDFUNC(PyObject *context, PyObject *v) \ { \ PyObject *result, *a; \ uint32_t status = 0; \ \ CONVERT_OP_RAISE(&a, v, context); \ \ if ((result = dec_alloc()) == NULL) { \ Py_DECREF(a); \ return NULL; \ } \ \ MPDFUNC(MPD(result), MPD(a), CTX(context), &status); \ Py_DECREF(a); \ if (dec_addstatus(context, status)) { \ Py_DECREF(result); \ return NULL; \ } \ \ return result; \ } /* Binary context method. */ #define DecCtx_BinaryFunc(MPDFUNC) \ static PyObject * \ ctx_##MPDFUNC(PyObject *context, PyObject *args) \ { \ PyObject *v, *w; \ PyObject *a, *b; \ PyObject *result; \ uint32_t status = 0; \ \ if (!PyArg_ParseTuple(args, "OO", &v, &w)) { \ return NULL; \ } \ \ CONVERT_BINOP_RAISE(&a, &b, v, w, context); \ \ if ((result = dec_alloc()) == NULL) { \ Py_DECREF(a); \ Py_DECREF(b); \ return NULL; \ } \ \ MPDFUNC(MPD(result), MPD(a), MPD(b), CTX(context), &status); \ Py_DECREF(a); \ Py_DECREF(b); \ if (dec_addstatus(context, status)) { \ Py_DECREF(result); \ return NULL; \ } \ \ return result; \ } /* * Binary context method. The context is only used for conversion. * The actual MPDFUNC does NOT take a context arg. */ #define DecCtx_BinaryFunc_NO_CTX(MPDFUNC) \ static PyObject * \ ctx_##MPDFUNC(PyObject *context, PyObject *args) \ { \ PyObject *v, *w; \ PyObject *a, *b; \ PyObject *result; \ \ if (!PyArg_ParseTuple(args, "OO", &v, &w)) { \ return NULL; \ } \ \ CONVERT_BINOP_RAISE(&a, &b, v, w, context); \ \ if ((result = dec_alloc()) == NULL) { \ Py_DECREF(a); \ Py_DECREF(b); \ return NULL; \ } \ \ MPDFUNC(MPD(result), MPD(a), MPD(b)); \ Py_DECREF(a); \ Py_DECREF(b); \ \ return result; \ } /* Ternary context method. */ #define DecCtx_TernaryFunc(MPDFUNC) \ static PyObject * \ ctx_##MPDFUNC(PyObject *context, PyObject *args) \ { \ PyObject *v, *w, *x; \ PyObject *a, *b, *c; \ PyObject *result; \ uint32_t status = 0; \ \ if (!PyArg_ParseTuple(args, "OOO", &v, &w, &x)) { \ return NULL; \ } \ \ CONVERT_TERNOP_RAISE(&a, &b, &c, v, w, x, context); \ \ if ((result = dec_alloc()) == NULL) { \ Py_DECREF(a); \ Py_DECREF(b); \ Py_DECREF(c); \ return NULL; \ } \ \ MPDFUNC(MPD(result), MPD(a), MPD(b), MPD(c), CTX(context), &status); \ Py_DECREF(a); \ Py_DECREF(b); \ Py_DECREF(c); \ if (dec_addstatus(context, status)) { \ Py_DECREF(result); \ return NULL; \ } \ \ return result; \ } /* Unary arithmetic functions */ DecCtx_UnaryFunc(mpd_qabs) DecCtx_UnaryFunc(mpd_qexp) DecCtx_UnaryFunc(mpd_qln) DecCtx_UnaryFunc(mpd_qlog10) DecCtx_UnaryFunc(mpd_qminus) DecCtx_UnaryFunc(mpd_qnext_minus) DecCtx_UnaryFunc(mpd_qnext_plus) DecCtx_UnaryFunc(mpd_qplus) DecCtx_UnaryFunc(mpd_qreduce) DecCtx_UnaryFunc(mpd_qround_to_int) DecCtx_UnaryFunc(mpd_qround_to_intx) DecCtx_UnaryFunc(mpd_qsqrt) /* Binary arithmetic functions */ DecCtx_BinaryFunc(mpd_qadd) DecCtx_BinaryFunc(mpd_qcompare) DecCtx_BinaryFunc(mpd_qcompare_signal) DecCtx_BinaryFunc(mpd_qdiv) DecCtx_BinaryFunc(mpd_qdivint) DecCtx_BinaryFunc(mpd_qmax) DecCtx_BinaryFunc(mpd_qmax_mag) DecCtx_BinaryFunc(mpd_qmin) DecCtx_BinaryFunc(mpd_qmin_mag) DecCtx_BinaryFunc(mpd_qmul) DecCtx_BinaryFunc(mpd_qnext_toward) DecCtx_BinaryFunc(mpd_qquantize) DecCtx_BinaryFunc(mpd_qrem) DecCtx_BinaryFunc(mpd_qrem_near) DecCtx_BinaryFunc(mpd_qsub) static PyObject * ctx_mpd_qdivmod(PyObject *context, PyObject *args) { PyObject *v, *w; PyObject *a, *b; PyObject *q, *r; uint32_t status = 0; PyObject *ret; if (!PyArg_ParseTuple(args, "OO", &v, &w)) { return NULL; } CONVERT_BINOP_RAISE(&a, &b, v, w, context); q = dec_alloc(); if (q == NULL) { Py_DECREF(a); Py_DECREF(b); return NULL; } r = dec_alloc(); if (r == NULL) { Py_DECREF(a); Py_DECREF(b); Py_DECREF(q); return NULL; } mpd_qdivmod(MPD(q), MPD(r), MPD(a), MPD(b), CTX(context), &status); Py_DECREF(a); Py_DECREF(b); if (dec_addstatus(context, status)) { Py_DECREF(r); Py_DECREF(q); return NULL; } ret = Py_BuildValue("(OO)", q, r); Py_DECREF(r); Py_DECREF(q); return ret; } /* Binary or ternary arithmetic functions */ static PyObject * ctx_mpd_qpow(PyObject *context, PyObject *args, PyObject *kwds) { static char *kwlist[] = {"a", "b", "modulo", NULL}; PyObject *base, *exp, *mod = Py_None; PyObject *a, *b, *c = NULL; PyObject *result; uint32_t status = 0; if (!PyArg_ParseTupleAndKeywords(args, kwds, "OO|O", kwlist, &base, &exp, &mod)) { return NULL; } CONVERT_BINOP_RAISE(&a, &b, base, exp, context); if (mod != Py_None) { if (!convert_op(TYPE_ERR, &c, mod, context)) { Py_DECREF(a); Py_DECREF(b); return c; } } result = dec_alloc(); if (result == NULL) { Py_DECREF(a); Py_DECREF(b); Py_XDECREF(c); return NULL; } if (c == NULL) { mpd_qpow(MPD(result), MPD(a), MPD(b), CTX(context), &status); } else { mpd_qpowmod(MPD(result), MPD(a), MPD(b), MPD(c), CTX(context), &status); Py_DECREF(c); } Py_DECREF(a); Py_DECREF(b); if (dec_addstatus(context, status)) { Py_DECREF(result); return NULL; } return result; } /* Ternary arithmetic functions */ DecCtx_TernaryFunc(mpd_qfma) /* No argument */ static PyObject * ctx_mpd_radix(PyObject *context, PyObject *dummy) { return dec_mpd_radix(context, dummy); } /* Boolean functions: single decimal argument */ DecCtx_BoolFunc(mpd_isnormal) DecCtx_BoolFunc(mpd_issubnormal) DecCtx_BoolFunc_NO_CTX(mpd_isfinite) DecCtx_BoolFunc_NO_CTX(mpd_isinfinite) DecCtx_BoolFunc_NO_CTX(mpd_isnan) DecCtx_BoolFunc_NO_CTX(mpd_isqnan) DecCtx_BoolFunc_NO_CTX(mpd_issigned) DecCtx_BoolFunc_NO_CTX(mpd_issnan) DecCtx_BoolFunc_NO_CTX(mpd_iszero) static PyObject * ctx_iscanonical(PyObject *context UNUSED, PyObject *v) { if (!PyDec_Check(v)) { PyErr_SetString(PyExc_TypeError, "argument must be a Decimal"); return NULL; } return mpd_iscanonical(MPD(v)) ? incr_true() : incr_false(); } /* Functions with a single decimal argument */ static PyObject * PyDecContext_Apply(PyObject *context, PyObject *v) { PyObject *result, *a; CONVERT_OP_RAISE(&a, v, context); result = dec_apply(a, context); Py_DECREF(a); return result; } static PyObject * ctx_canonical(PyObject *context UNUSED, PyObject *v) { if (!PyDec_Check(v)) { PyErr_SetString(PyExc_TypeError, "argument must be a Decimal"); return NULL; } Py_INCREF(v); return v; } static PyObject * ctx_mpd_qcopy_abs(PyObject *context, PyObject *v) { PyObject *result, *a; uint32_t status = 0; CONVERT_OP_RAISE(&a, v, context); result = dec_alloc(); if (result == NULL) { Py_DECREF(a); return NULL; } mpd_qcopy_abs(MPD(result), MPD(a), &status); Py_DECREF(a); if (dec_addstatus(context, status)) { Py_DECREF(result); return NULL; } return result; } static PyObject * ctx_copy_decimal(PyObject *context, PyObject *v) { PyObject *result; CONVERT_OP_RAISE(&result, v, context); return result; } static PyObject * ctx_mpd_qcopy_negate(PyObject *context, PyObject *v) { PyObject *result, *a; uint32_t status = 0; CONVERT_OP_RAISE(&a, v, context); result = dec_alloc(); if (result == NULL) { Py_DECREF(a); return NULL; } mpd_qcopy_negate(MPD(result), MPD(a), &status); Py_DECREF(a); if (dec_addstatus(context, status)) { Py_DECREF(result); return NULL; } return result; } DecCtx_UnaryFunc(mpd_qlogb) DecCtx_UnaryFunc(mpd_qinvert) static PyObject * ctx_mpd_class(PyObject *context, PyObject *v) { PyObject *a; const char *cp; CONVERT_OP_RAISE(&a, v, context); cp = mpd_class(MPD(a), CTX(context)); Py_DECREF(a); return PyUnicode_FromString(cp); } static PyObject * ctx_mpd_to_sci(PyObject *context, PyObject *v) { PyObject *result; PyObject *a; mpd_ssize_t size; char *s; CONVERT_OP_RAISE(&a, v, context); size = mpd_to_sci_size(&s, MPD(a), CtxCaps(context)); Py_DECREF(a); if (size < 0) { PyErr_NoMemory(); return NULL; } result = unicode_fromascii(s, size); mpd_free(s); return result; } static PyObject * ctx_mpd_to_eng(PyObject *context, PyObject *v) { PyObject *result; PyObject *a; mpd_ssize_t size; char *s; CONVERT_OP_RAISE(&a, v, context); size = mpd_to_eng_size(&s, MPD(a), CtxCaps(context)); Py_DECREF(a); if (size < 0) { PyErr_NoMemory(); return NULL; } result = unicode_fromascii(s, size); mpd_free(s); return result; } /* Functions with two decimal arguments */ DecCtx_BinaryFunc_NO_CTX(mpd_compare_total) DecCtx_BinaryFunc_NO_CTX(mpd_compare_total_mag) static PyObject * ctx_mpd_qcopy_sign(PyObject *context, PyObject *args) { PyObject *v, *w; PyObject *a, *b; PyObject *result; uint32_t status = 0; if (!PyArg_ParseTuple(args, "OO", &v, &w)) { return NULL; } CONVERT_BINOP_RAISE(&a, &b, v, w, context); result = dec_alloc(); if (result == NULL) { Py_DECREF(a); Py_DECREF(b); return NULL; } mpd_qcopy_sign(MPD(result), MPD(a), MPD(b), &status); Py_DECREF(a); Py_DECREF(b); if (dec_addstatus(context, status)) { Py_DECREF(result); return NULL; } return result; } DecCtx_BinaryFunc(mpd_qand) DecCtx_BinaryFunc(mpd_qor) DecCtx_BinaryFunc(mpd_qxor) DecCtx_BinaryFunc(mpd_qrotate) DecCtx_BinaryFunc(mpd_qscaleb) DecCtx_BinaryFunc(mpd_qshift) static PyObject * ctx_mpd_same_quantum(PyObject *context, PyObject *args) { PyObject *v, *w; PyObject *a, *b; PyObject *result; if (!PyArg_ParseTuple(args, "OO", &v, &w)) { return NULL; } CONVERT_BINOP_RAISE(&a, &b, v, w, context); result = mpd_same_quantum(MPD(a), MPD(b)) ? incr_true() : incr_false(); Py_DECREF(a); Py_DECREF(b); return result; } static PyMethodDef context_methods [] = { /* Unary arithmetic functions */ { "abs", ctx_mpd_qabs, METH_O, doc_ctx_abs }, { "exp", ctx_mpd_qexp, METH_O, doc_ctx_exp }, { "ln", ctx_mpd_qln, METH_O, doc_ctx_ln }, { "log10", ctx_mpd_qlog10, METH_O, doc_ctx_log10 }, { "minus", ctx_mpd_qminus, METH_O, doc_ctx_minus }, { "next_minus", ctx_mpd_qnext_minus, METH_O, doc_ctx_next_minus }, { "next_plus", ctx_mpd_qnext_plus, METH_O, doc_ctx_next_plus }, { "normalize", ctx_mpd_qreduce, METH_O, doc_ctx_normalize }, { "plus", ctx_mpd_qplus, METH_O, doc_ctx_plus }, { "to_integral", ctx_mpd_qround_to_int, METH_O, doc_ctx_to_integral }, { "to_integral_exact", ctx_mpd_qround_to_intx, METH_O, doc_ctx_to_integral_exact }, { "to_integral_value", ctx_mpd_qround_to_int, METH_O, doc_ctx_to_integral_value }, { "sqrt", ctx_mpd_qsqrt, METH_O, doc_ctx_sqrt }, /* Binary arithmetic functions */ { "add", ctx_mpd_qadd, METH_VARARGS, doc_ctx_add }, { "compare", ctx_mpd_qcompare, METH_VARARGS, doc_ctx_compare }, { "compare_signal", ctx_mpd_qcompare_signal, METH_VARARGS, doc_ctx_compare_signal }, { "divide", ctx_mpd_qdiv, METH_VARARGS, doc_ctx_divide }, { "divide_int", ctx_mpd_qdivint, METH_VARARGS, doc_ctx_divide_int }, { "divmod", ctx_mpd_qdivmod, METH_VARARGS, doc_ctx_divmod }, { "max", ctx_mpd_qmax, METH_VARARGS, doc_ctx_max }, { "max_mag", ctx_mpd_qmax_mag, METH_VARARGS, doc_ctx_max_mag }, { "min", ctx_mpd_qmin, METH_VARARGS, doc_ctx_min }, { "min_mag", ctx_mpd_qmin_mag, METH_VARARGS, doc_ctx_min_mag }, { "multiply", ctx_mpd_qmul, METH_VARARGS, doc_ctx_multiply }, { "next_toward", ctx_mpd_qnext_toward, METH_VARARGS, doc_ctx_next_toward }, { "quantize", ctx_mpd_qquantize, METH_VARARGS, doc_ctx_quantize }, { "remainder", ctx_mpd_qrem, METH_VARARGS, doc_ctx_remainder }, { "remainder_near", ctx_mpd_qrem_near, METH_VARARGS, doc_ctx_remainder_near }, { "subtract", ctx_mpd_qsub, METH_VARARGS, doc_ctx_subtract }, /* Binary or ternary arithmetic functions */ { "power", (PyCFunction)(void(*)(void))ctx_mpd_qpow, METH_VARARGS|METH_KEYWORDS, doc_ctx_power }, /* Ternary arithmetic functions */ { "fma", ctx_mpd_qfma, METH_VARARGS, doc_ctx_fma }, /* No argument */ { "Etiny", context_getetiny, METH_NOARGS, doc_ctx_Etiny }, { "Etop", context_getetop, METH_NOARGS, doc_ctx_Etop }, { "radix", ctx_mpd_radix, METH_NOARGS, doc_ctx_radix }, /* Boolean functions */ { "is_canonical", ctx_iscanonical, METH_O, doc_ctx_is_canonical }, { "is_finite", ctx_mpd_isfinite, METH_O, doc_ctx_is_finite }, { "is_infinite", ctx_mpd_isinfinite, METH_O, doc_ctx_is_infinite }, { "is_nan", ctx_mpd_isnan, METH_O, doc_ctx_is_nan }, { "is_normal", ctx_mpd_isnormal, METH_O, doc_ctx_is_normal }, { "is_qnan", ctx_mpd_isqnan, METH_O, doc_ctx_is_qnan }, { "is_signed", ctx_mpd_issigned, METH_O, doc_ctx_is_signed }, { "is_snan", ctx_mpd_issnan, METH_O, doc_ctx_is_snan }, { "is_subnormal", ctx_mpd_issubnormal, METH_O, doc_ctx_is_subnormal }, { "is_zero", ctx_mpd_iszero, METH_O, doc_ctx_is_zero }, /* Functions with a single decimal argument */ { "_apply", PyDecContext_Apply, METH_O, NULL }, /* alias for apply */ #ifdef EXTRA_FUNCTIONALITY { "apply", PyDecContext_Apply, METH_O, doc_ctx_apply }, #endif { "canonical", ctx_canonical, METH_O, doc_ctx_canonical }, { "copy_abs", ctx_mpd_qcopy_abs, METH_O, doc_ctx_copy_abs }, { "copy_decimal", ctx_copy_decimal, METH_O, doc_ctx_copy_decimal }, { "copy_negate", ctx_mpd_qcopy_negate, METH_O, doc_ctx_copy_negate }, { "logb", ctx_mpd_qlogb, METH_O, doc_ctx_logb }, { "logical_invert", ctx_mpd_qinvert, METH_O, doc_ctx_logical_invert }, { "number_class", ctx_mpd_class, METH_O, doc_ctx_number_class }, { "to_sci_string", ctx_mpd_to_sci, METH_O, doc_ctx_to_sci_string }, { "to_eng_string", ctx_mpd_to_eng, METH_O, doc_ctx_to_eng_string }, /* Functions with two decimal arguments */ { "compare_total", ctx_mpd_compare_total, METH_VARARGS, doc_ctx_compare_total }, { "compare_total_mag", ctx_mpd_compare_total_mag, METH_VARARGS, doc_ctx_compare_total_mag }, { "copy_sign", ctx_mpd_qcopy_sign, METH_VARARGS, doc_ctx_copy_sign }, { "logical_and", ctx_mpd_qand, METH_VARARGS, doc_ctx_logical_and }, { "logical_or", ctx_mpd_qor, METH_VARARGS, doc_ctx_logical_or }, { "logical_xor", ctx_mpd_qxor, METH_VARARGS, doc_ctx_logical_xor }, { "rotate", ctx_mpd_qrotate, METH_VARARGS, doc_ctx_rotate }, { "same_quantum", ctx_mpd_same_quantum, METH_VARARGS, doc_ctx_same_quantum }, { "scaleb", ctx_mpd_qscaleb, METH_VARARGS, doc_ctx_scaleb }, { "shift", ctx_mpd_qshift, METH_VARARGS, doc_ctx_shift }, /* Set context values */ { "clear_flags", context_clear_flags, METH_NOARGS, doc_ctx_clear_flags }, { "clear_traps", context_clear_traps, METH_NOARGS, doc_ctx_clear_traps }, #ifdef CONFIG_32 /* Unsafe set functions with relaxed range checks */ { "_unsafe_setprec", context_unsafe_setprec, METH_O, NULL }, { "_unsafe_setemin", context_unsafe_setemin, METH_O, NULL }, { "_unsafe_setemax", context_unsafe_setemax, METH_O, NULL }, #endif /* Miscellaneous */ { "__copy__", (PyCFunction)context_copy, METH_NOARGS, NULL }, { "__reduce__", context_reduce, METH_NOARGS, NULL }, { "copy", (PyCFunction)context_copy, METH_NOARGS, doc_ctx_copy }, { "create_decimal", ctx_create_decimal, METH_VARARGS, doc_ctx_create_decimal }, { "create_decimal_from_float", ctx_from_float, METH_O, doc_ctx_create_decimal_from_float }, { NULL, NULL, 1 } }; static PyTypeObject PyDecContext_Type = { PyVarObject_HEAD_INIT(NULL, 0) "decimal.Context", /* tp_name */ sizeof(PyDecContextObject), /* tp_basicsize */ 0, /* tp_itemsize */ (destructor) context_dealloc, /* tp_dealloc */ 0, /* tp_vectorcall_offset */ (getattrfunc) 0, /* tp_getattr */ (setattrfunc) 0, /* tp_setattr */ 0, /* tp_as_async */ (reprfunc) context_repr, /* tp_repr */ 0, /* tp_as_number */ 0, /* tp_as_sequence */ 0, /* tp_as_mapping */ (hashfunc) 0, /* tp_hash */ 0, /* tp_call */ 0, /* tp_str */ (getattrofunc) context_getattr, /* tp_getattro */ (setattrofunc) context_setattr, /* tp_setattro */ (PyBufferProcs *) 0, /* tp_as_buffer */ Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, /* tp_flags */ doc_context, /* tp_doc */ 0, /* tp_traverse */ 0, /* tp_clear */ 0, /* tp_richcompare */ 0, /* tp_weaklistoffset */ 0, /* tp_iter */ 0, /* tp_iternext */ context_methods, /* tp_methods */ 0, /* tp_members */ context_getsets, /* tp_getset */ 0, /* tp_base */ 0, /* tp_dict */ 0, /* tp_descr_get */ 0, /* tp_descr_set */ 0, /* tp_dictoffset */ context_init, /* tp_init */ 0, /* tp_alloc */ context_new, /* tp_new */ PyObject_Del, /* tp_free */ }; static PyMethodDef _decimal_methods [] = { { "getcontext", (PyCFunction)PyDec_GetCurrentContext, METH_NOARGS, doc_getcontext}, { "setcontext", (PyCFunction)PyDec_SetCurrentContext, METH_O, doc_setcontext}, { "localcontext", (PyCFunction)(void(*)(void))ctxmanager_new, METH_VARARGS|METH_KEYWORDS, doc_localcontext}, #ifdef EXTRA_FUNCTIONALITY { "IEEEContext", (PyCFunction)ieee_context, METH_O, doc_ieee_context}, #endif { NULL, NULL, 1, NULL } }; static struct PyModuleDef _decimal_module = { PyModuleDef_HEAD_INIT, "decimal", doc__decimal, -1, _decimal_methods, NULL, NULL, NULL, NULL }; struct ssize_constmap { const char *name; mpd_ssize_t val; }; static struct ssize_constmap ssize_constants [] = { {"MAX_PREC", MPD_MAX_PREC}, {"MAX_EMAX", MPD_MAX_EMAX}, {"MIN_EMIN", MPD_MIN_EMIN}, {"MIN_ETINY", MPD_MIN_ETINY}, {NULL} }; struct int_constmap { const char *name; int val; }; static struct int_constmap int_constants [] = { /* int constants */ #ifdef EXTRA_FUNCTIONALITY {"DECIMAL32", MPD_DECIMAL32}, {"DECIMAL64", MPD_DECIMAL64}, {"DECIMAL128", MPD_DECIMAL128}, {"IEEE_CONTEXT_MAX_BITS", MPD_IEEE_CONTEXT_MAX_BITS}, /* int condition flags */ {"DecClamped", MPD_Clamped}, {"DecConversionSyntax", MPD_Conversion_syntax}, {"DecDivisionByZero", MPD_Division_by_zero}, {"DecDivisionImpossible", MPD_Division_impossible}, {"DecDivisionUndefined", MPD_Division_undefined}, {"DecFpuError", MPD_Fpu_error}, {"DecInexact", MPD_Inexact}, {"DecInvalidContext", MPD_Invalid_context}, {"DecInvalidOperation", MPD_Invalid_operation}, {"DecIEEEInvalidOperation", MPD_IEEE_Invalid_operation}, {"DecMallocError", MPD_Malloc_error}, {"DecFloatOperation", MPD_Float_operation}, {"DecOverflow", MPD_Overflow}, {"DecRounded", MPD_Rounded}, {"DecSubnormal", MPD_Subnormal}, {"DecUnderflow", MPD_Underflow}, {"DecErrors", MPD_Errors}, {"DecTraps", MPD_Traps}, #endif {NULL} }; #define CHECK_INT(expr) \ do { if ((expr) < 0) goto error; } while (0) #define ASSIGN_PTR(result, expr) \ do { result = (expr); if (result == NULL) goto error; } while (0) #define CHECK_PTR(expr) \ do { if ((expr) == NULL) goto error; } while (0) static PyCFunction cfunc_noargs(PyTypeObject *t, const char *name) { struct PyMethodDef *m; if (t->tp_methods == NULL) { goto error; } for (m = t->tp_methods; m->ml_name != NULL; m++) { if (strcmp(name, m->ml_name) == 0) { if (!(m->ml_flags & METH_NOARGS)) { goto error; } return m->ml_meth; } } error: PyErr_Format(PyExc_RuntimeError, "internal error: could not find method %s", name); return NULL; } PyMODINIT_FUNC PyInit__decimal(void) { PyObject *m = NULL; PyObject *numbers = NULL; PyObject *Number = NULL; PyObject *collections = NULL; PyObject *collections_abc = NULL; PyObject *MutableMapping = NULL; PyObject *obj = NULL; DecCondMap *cm; struct ssize_constmap *ssize_cm; struct int_constmap *int_cm; int i; /* Init libmpdec */ mpd_traphandler = dec_traphandler; mpd_mallocfunc = PyMem_Malloc; mpd_reallocfunc = PyMem_Realloc; mpd_callocfunc = mpd_callocfunc_em; mpd_free = PyMem_Free; mpd_setminalloc(_Py_DEC_MINALLOC); /* Init external C-API functions */ _py_long_multiply = PyLong_Type.tp_as_number->nb_multiply; _py_long_floor_divide = PyLong_Type.tp_as_number->nb_floor_divide; _py_long_power = PyLong_Type.tp_as_number->nb_power; _py_float_abs = PyFloat_Type.tp_as_number->nb_absolute; ASSIGN_PTR(_py_float_as_integer_ratio, cfunc_noargs(&PyFloat_Type, "as_integer_ratio")); ASSIGN_PTR(_py_long_bit_length, cfunc_noargs(&PyLong_Type, "bit_length")); /* Init types */ PyDec_Type.tp_base = &PyBaseObject_Type; PyDecContext_Type.tp_base = &PyBaseObject_Type; PyDecContextManager_Type.tp_base = &PyBaseObject_Type; PyDecSignalDictMixin_Type.tp_base = &PyBaseObject_Type; CHECK_INT(PyType_Ready(&PyDec_Type)); CHECK_INT(PyType_Ready(&PyDecContext_Type)); CHECK_INT(PyType_Ready(&PyDecSignalDictMixin_Type)); CHECK_INT(PyType_Ready(&PyDecContextManager_Type)); ASSIGN_PTR(obj, PyUnicode_FromString("decimal")); CHECK_INT(PyDict_SetItemString(PyDec_Type.tp_dict, "__module__", obj)); CHECK_INT(PyDict_SetItemString(PyDecContext_Type.tp_dict, "__module__", obj)); Py_CLEAR(obj); /* Numeric abstract base classes */ ASSIGN_PTR(numbers, PyImport_ImportModule("numbers")); ASSIGN_PTR(Number, PyObject_GetAttrString(numbers, "Number")); /* Register Decimal with the Number abstract base class */ ASSIGN_PTR(obj, PyObject_CallMethod(Number, "register", "(O)", (PyObject *)&PyDec_Type)); Py_CLEAR(obj); /* Rational is a global variable used for fraction comparisons. */ ASSIGN_PTR(Rational, PyObject_GetAttrString(numbers, "Rational")); /* Done with numbers, Number */ Py_CLEAR(numbers); Py_CLEAR(Number); /* DecimalTuple */ ASSIGN_PTR(collections, PyImport_ImportModule("collections")); ASSIGN_PTR(DecimalTuple, (PyTypeObject *)PyObject_CallMethod(collections, "namedtuple", "(ss)", "DecimalTuple", "sign digits exponent")); ASSIGN_PTR(obj, PyUnicode_FromString("decimal")); CHECK_INT(PyDict_SetItemString(DecimalTuple->tp_dict, "__module__", obj)); Py_CLEAR(obj); /* MutableMapping */ ASSIGN_PTR(collections_abc, PyImport_ImportModule("collections.abc")); ASSIGN_PTR(MutableMapping, PyObject_GetAttrString(collections_abc, "MutableMapping")); /* Create SignalDict type */ ASSIGN_PTR(PyDecSignalDict_Type, (PyTypeObject *)PyObject_CallFunction( (PyObject *)&PyType_Type, "s(OO){}", "SignalDict", &PyDecSignalDictMixin_Type, MutableMapping)); /* Done with collections, MutableMapping */ Py_CLEAR(collections); Py_CLEAR(collections_abc); Py_CLEAR(MutableMapping); /* Create the module */ ASSIGN_PTR(m, PyModule_Create(&_decimal_module)); /* Add types to the module */ Py_INCREF(&PyDec_Type); CHECK_INT(PyModule_AddObject(m, "Decimal", (PyObject *)&PyDec_Type)); Py_INCREF(&PyDecContext_Type); CHECK_INT(PyModule_AddObject(m, "Context", (PyObject *)&PyDecContext_Type)); Py_INCREF(DecimalTuple); CHECK_INT(PyModule_AddObject(m, "DecimalTuple", (PyObject *)DecimalTuple)); /* Create top level exception */ ASSIGN_PTR(DecimalException, PyErr_NewException( "decimal.DecimalException", PyExc_ArithmeticError, NULL)); Py_INCREF(DecimalException); CHECK_INT(PyModule_AddObject(m, "DecimalException", DecimalException)); /* Create signal tuple */ ASSIGN_PTR(SignalTuple, PyTuple_New(SIGNAL_MAP_LEN)); /* Add exceptions that correspond to IEEE signals */ for (i = SIGNAL_MAP_LEN-1; i >= 0; i--) { PyObject *base; cm = signal_map + i; switch (cm->flag) { case MPD_Float_operation: base = PyTuple_Pack(2, DecimalException, PyExc_TypeError); break; case MPD_Division_by_zero: base = PyTuple_Pack(2, DecimalException, PyExc_ZeroDivisionError); break; case MPD_Overflow: base = PyTuple_Pack(2, signal_map[INEXACT].ex, signal_map[ROUNDED].ex); break; case MPD_Underflow: base = PyTuple_Pack(3, signal_map[INEXACT].ex, signal_map[ROUNDED].ex, signal_map[SUBNORMAL].ex); break; default: base = PyTuple_Pack(1, DecimalException); break; } if (base == NULL) { goto error; /* GCOV_NOT_REACHED */ } ASSIGN_PTR(cm->ex, PyErr_NewException(cm->fqname, base, NULL)); Py_DECREF(base); /* add to module */ Py_INCREF(cm->ex); CHECK_INT(PyModule_AddObject(m, cm->name, cm->ex)); /* add to signal tuple */ Py_INCREF(cm->ex); PyTuple_SET_ITEM(SignalTuple, i, cm->ex); } /* * Unfortunately, InvalidOperation is a signal that comprises * several conditions, including InvalidOperation! Naming the * signal IEEEInvalidOperation would prevent the confusion. */ cond_map[0].ex = signal_map[0].ex; /* Add remaining exceptions, inherit from InvalidOperation */ for (cm = cond_map+1; cm->name != NULL; cm++) { PyObject *base; if (cm->flag == MPD_Division_undefined) { base = PyTuple_Pack(2, signal_map[0].ex, PyExc_ZeroDivisionError); } else { base = PyTuple_Pack(1, signal_map[0].ex); } if (base == NULL) { goto error; /* GCOV_NOT_REACHED */ } ASSIGN_PTR(cm->ex, PyErr_NewException(cm->fqname, base, NULL)); Py_DECREF(base); Py_INCREF(cm->ex); CHECK_INT(PyModule_AddObject(m, cm->name, cm->ex)); } /* Init default context template first */ ASSIGN_PTR(default_context_template, PyObject_CallObject((PyObject *)&PyDecContext_Type, NULL)); Py_INCREF(default_context_template); CHECK_INT(PyModule_AddObject(m, "DefaultContext", default_context_template)); #ifndef WITH_DECIMAL_CONTEXTVAR ASSIGN_PTR(tls_context_key, PyUnicode_FromString("___DECIMAL_CTX__")); Py_INCREF(Py_False); CHECK_INT(PyModule_AddObject(m, "HAVE_CONTEXTVAR", Py_False)); #else ASSIGN_PTR(current_context_var, PyContextVar_New("decimal_context", NULL)); Py_INCREF(Py_True); CHECK_INT(PyModule_AddObject(m, "HAVE_CONTEXTVAR", Py_True)); #endif Py_INCREF(Py_True); CHECK_INT(PyModule_AddObject(m, "HAVE_THREADS", Py_True)); /* Init basic context template */ ASSIGN_PTR(basic_context_template, PyObject_CallObject((PyObject *)&PyDecContext_Type, NULL)); init_basic_context(basic_context_template); Py_INCREF(basic_context_template); CHECK_INT(PyModule_AddObject(m, "BasicContext", basic_context_template)); /* Init extended context template */ ASSIGN_PTR(extended_context_template, PyObject_CallObject((PyObject *)&PyDecContext_Type, NULL)); init_extended_context(extended_context_template); Py_INCREF(extended_context_template); CHECK_INT(PyModule_AddObject(m, "ExtendedContext", extended_context_template)); /* Init mpd_ssize_t constants */ for (ssize_cm = ssize_constants; ssize_cm->name != NULL; ssize_cm++) { ASSIGN_PTR(obj, PyLong_FromSsize_t(ssize_cm->val)); CHECK_INT(PyModule_AddObject(m, ssize_cm->name, obj)); obj = NULL; } /* Init int constants */ for (int_cm = int_constants; int_cm->name != NULL; int_cm++) { CHECK_INT(PyModule_AddIntConstant(m, int_cm->name, int_cm->val)); } /* Init string constants */ for (i = 0; i < _PY_DEC_ROUND_GUARD; i++) { ASSIGN_PTR(round_map[i], PyUnicode_InternFromString(mpd_round_string[i])); Py_INCREF(round_map[i]); CHECK_INT(PyModule_AddObject(m, mpd_round_string[i], round_map[i])); } /* Add specification version number */ CHECK_INT(PyModule_AddStringConstant(m, "__version__", "1.70")); CHECK_INT(PyModule_AddStringConstant(m, "__libmpdec_version__", mpd_version())); return m; error: Py_CLEAR(obj); /* GCOV_NOT_REACHED */ Py_CLEAR(numbers); /* GCOV_NOT_REACHED */ Py_CLEAR(Number); /* GCOV_NOT_REACHED */ Py_CLEAR(Rational); /* GCOV_NOT_REACHED */ Py_CLEAR(collections); /* GCOV_NOT_REACHED */ Py_CLEAR(collections_abc); /* GCOV_NOT_REACHED */ Py_CLEAR(MutableMapping); /* GCOV_NOT_REACHED */ Py_CLEAR(SignalTuple); /* GCOV_NOT_REACHED */ Py_CLEAR(DecimalTuple); /* GCOV_NOT_REACHED */ Py_CLEAR(default_context_template); /* GCOV_NOT_REACHED */ #ifndef WITH_DECIMAL_CONTEXTVAR Py_CLEAR(tls_context_key); /* GCOV_NOT_REACHED */ #else Py_CLEAR(current_context_var); /* GCOV_NOT_REACHED */ #endif Py_CLEAR(basic_context_template); /* GCOV_NOT_REACHED */ Py_CLEAR(extended_context_template); /* GCOV_NOT_REACHED */ Py_CLEAR(m); /* GCOV_NOT_REACHED */ return NULL; /* GCOV_NOT_REACHED */ }