| Commit message (Collapse) | Author | Age | Files | Lines |
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"Generally, mixed-mode arithmetic combining real and complex variables should
be performed directly, not by first coercing the real to complex, lest the sign
of zero be rendered uninformative; the same goes for combinations of pure
imaginary quantities with complex variables." (c) Kahan, W: Branch cuts for
complex elementary functions.
This patch implements mixed-mode arithmetic rules, combining real and
complex variables as specified by C standards since C99 (in particular,
there is no special version for the true division with real lhs
operand). Most C compilers implementing C99+ Annex G have only these
special rules (without support for imaginary type, which is going to be
deprecated in C2y).
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Restore removed private C API functions, macros and structures which
have no simple replacement for now:
* _PyDict_GetItem_KnownHash()
* _PyDict_NewPresized()
* _PyHASH_BITS
* _PyHASH_IMAG
* _PyHASH_INF
* _PyHASH_MODULUS
* _PyHASH_MULTIPLIER
* _PyLong_Copy()
* _PyLong_FromDigits()
* _PyLong_New()
* _PyLong_Sign()
* _PyObject_CallMethodId()
* _PyObject_CallMethodNoArgs()
* _PyObject_CallMethodOneArg()
* _PyObject_CallOneArg()
* _PyObject_EXTRA_INIT
* _PyObject_FastCallDict()
* _PyObject_GetAttrId()
* _PyObject_Vectorcall()
* _PyObject_VectorcallMethod()
* _PyStack_AsDict()
* _PyThread_CurrentFrames()
* _PyUnicodeWriter structure
* _PyUnicodeWriter_Dealloc()
* _PyUnicodeWriter_Finish()
* _PyUnicodeWriter_Init()
* _PyUnicodeWriter_Prepare()
* _PyUnicodeWriter_PrepareKind()
* _PyUnicodeWriter_WriteASCIIString()
* _PyUnicodeWriter_WriteChar()
* _PyUnicodeWriter_WriteLatin1String()
* _PyUnicodeWriter_WriteStr()
* _PyUnicodeWriter_WriteSubstring()
* _PyUnicode_AsString()
* _PyUnicode_FromId()
* _PyVectorcall_Function()
* _Py_HashDouble()
* _Py_HashPointer()
* _Py_IDENTIFIER()
* _Py_c_abs()
* _Py_c_diff()
* _Py_c_neg()
* _Py_c_pow()
* _Py_c_prod()
* _Py_c_quot()
* _Py_c_sum()
* _Py_static_string()
* _Py_static_string_init()
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Add internal pycore_complexobject.h header file.
Move _Py_c_xxx() functions and _PyComplex_FormatAdvancedWriter()
function to this new header file.
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Move the private _PyComplex_FormatAdvancedWriter() function to the
internal C API. This function is no longer exported.
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