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-rw-r--r--Objects/longobject.c100
1 files changed, 67 insertions, 33 deletions
diff --git a/Objects/longobject.c b/Objects/longobject.c
index 3e12639..45907e8 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -1,5 +1,5 @@
/***********************************************************
-Copyright 1991, 1992, 1993 by Stichting Mathematisch Centrum,
+Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
Amsterdam, The Netherlands.
All Rights Reserved
@@ -27,10 +27,10 @@ OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
/* XXX The functional organization of this file is terrible */
#include "allobjects.h"
-#include "intrcheck.h"
#include "longintrepr.h"
#include <math.h>
#include <assert.h>
+#include <ctype.h>
#define ABS(x) ((x) < 0 ? -(x) : (x))
@@ -43,10 +43,10 @@ static object *long_format PROTO((object *aa, int base));
static int ticker; /* XXX Could be shared with ceval? */
-#define INTRCHECK(block) \
+#define SIGCHECK(block) \
if (--ticker < 0) { \
ticker = 100; \
- if (intrcheck()) { block; } \
+ if (sigcheck()) { block; } \
}
/* Normalize (remove leading zeros from) a long int object.
@@ -84,6 +84,7 @@ newlongobject(ival)
long ival;
{
/* Assume a C long fits in at most 3 'digits' */
+ /* XXX On 64 bit machines this isn't true!!! */
longobject *v = alloclongobject(3);
if (v != NULL) {
if (ival < 0) {
@@ -92,7 +93,7 @@ newlongobject(ival)
}
v->ob_digit[0] = ival & MASK;
v->ob_digit[1] = (ival >> SHIFT) & MASK;
- v->ob_digit[2] = (ival >> (2*SHIFT)) & MASK;
+ v->ob_digit[2] = ((unsigned long)ival >> (2*SHIFT)) & MASK;
v = long_normalize(v);
}
return (object *)v;
@@ -190,7 +191,7 @@ dgetlongvalue(vv)
i = -(i);
}
while (--i >= 0) {
- x = x*multiplier + v->ob_digit[i];
+ x = x*multiplier + (double)v->ob_digit[i];
}
return x * sign;
}
@@ -315,10 +316,9 @@ long_format(aa, base)
*--p = rem;
DECREF(a);
a = temp;
- INTRCHECK({
+ SIGCHECK({
DECREF(a);
DECREF(str);
- err_set(KeyboardInterrupt);
return NULL;
})
} while (ABS(a->ob_size) != 0);
@@ -352,23 +352,39 @@ long_format(aa, base)
/* Convert a string to a long int object, in a given base.
Base zero implies a default depending on the number.
- External linkage: used in compile.c for literals. */
+ External linkage: used in compile.c and stropmodule.c. */
object *
long_scan(str, base)
char *str;
int base;
{
+ return long_escan(str, (char **)NULL, base);
+}
+
+object *
+long_escan(str, pend, base)
+ char *str;
+ char **pend;
+ int base;
+{
int sign = 1;
longobject *z;
- assert(base == 0 || base >= 2 && base <= 36);
+ if (base != 0 && base < 2 || base > 36) {
+ err_setstr(ValueError, "invalid base for long literal");
+ return NULL;
+ }
+ while (*str != '\0' && isspace(*str))
+ str++;
if (*str == '+')
++str;
else if (*str == '-') {
++str;
sign = -1;
}
+ while (*str != '\0' && isspace(*str))
+ str++;
if (base == 0) {
if (str[0] != '0')
base = 10;
@@ -398,6 +414,8 @@ long_scan(str, base)
}
if (sign < 0 && z != NULL && z->ob_size != 0)
z->ob_size = -(z->ob_size);
+ if (pend)
+ *pend = str;
return (object *) z;
}
@@ -487,10 +505,9 @@ x_divrem(v1, w1, prem)
stwodigits carry = 0;
int i;
- INTRCHECK({
+ SIGCHECK({
DECREF(a);
a = NULL;
- err_set(KeyboardInterrupt);
break;
})
if (vj == w->ob_digit[size_w-1])
@@ -564,7 +581,7 @@ static object *long_mul PROTO((longobject *, longobject *));
static object *long_div PROTO((longobject *, longobject *));
static object *long_mod PROTO((longobject *, longobject *));
static object *long_divmod PROTO((longobject *, longobject *));
-static object *long_pow PROTO((longobject *, longobject *));
+static object *long_pow PROTO((longobject *, longobject *, longobject *));
static object *long_neg PROTO((longobject *));
static object *long_pos PROTO((longobject *));
static object *long_abs PROTO((longobject *));
@@ -720,7 +737,7 @@ x_sub(a, b)
for (i = 0; i < size_b; ++i) {
/* The following assumes unsigned arithmetic
works module 2**N for some N>SHIFT. */
- borrow = a->ob_digit[i] - b->ob_digit[i] - borrow;
+ borrow = a->ob_digit[i] - b->ob_digit[i] - borrow;
z->ob_digit[i] = borrow & MASK;
borrow >>= SHIFT;
borrow &= 1; /* Keep only one sign bit */
@@ -807,9 +824,8 @@ long_mul(a, b)
twodigits f = a->ob_digit[i];
int j;
- INTRCHECK({
+ SIGCHECK({
DECREF(z);
- err_set(KeyboardInterrupt);
return NULL;
})
for (j = 0; j < size_b; ++j) {
@@ -933,11 +949,12 @@ long_divmod(v, w)
}
static object *
-long_pow(a, b)
+long_pow(a, b, c)
longobject *a;
longobject *b;
+ longobject *c;
{
- longobject *z;
+ longobject *z, *div, *mod;
int size_b, i;
size_b = b->ob_size;
@@ -945,21 +962,25 @@ long_pow(a, b)
err_setstr(ValueError, "long integer to the negative power");
return NULL;
}
-
z = (longobject *)newlongobject(1L);
-
INCREF(a);
for (i = 0; i < size_b; ++i) {
digit bi = b->ob_digit[i];
int j;
-
+
for (j = 0; j < SHIFT; ++j) {
longobject *temp;
-
+
if (bi & 1) {
temp = (longobject *)long_mul(z, a);
DECREF(z);
- z = temp;
+ if ((object*)c!=None && temp!=NULL) {
+ l_divmod(temp, c, &div, &mod);
+ XDECREF(div);
+ DECREF(temp);
+ temp = mod;
+ }
+ z = temp;
if (z == NULL)
break;
}
@@ -968,6 +989,12 @@ long_pow(a, b)
break;
temp = (longobject *)long_mul(a, a);
DECREF(a);
+ if ((object*)c!=None && temp!=NULL) {
+ l_divmod(temp, c, &div, &mod);
+ XDECREF(div);
+ DECREF(temp);
+ temp = mod;
+ }
a = temp;
if (a == NULL) {
DECREF(z);
@@ -979,6 +1006,12 @@ long_pow(a, b)
break;
}
XDECREF(a);
+ if ((object*)c!=None && z!=NULL) {
+ l_divmod(z, c, &div, &mod);
+ XDECREF(div);
+ DECREF(z);
+ z=mod;
+ }
return (object *)z;
}
@@ -1214,7 +1247,7 @@ long_bitwise(a, op, b)
negz = -1;
}
break;
- case '&':
+ case '&':
if (maska && maskb) {
op = '|';
maska ^= MASK;
@@ -1330,9 +1363,10 @@ long_hex(v)
}
-#define UF (object* (*) FPROTO((object *))) /* Unary function */
-#define BF (object* (*) FPROTO((object *, object *))) /* Binary function */
-#define IF (int (*) FPROTO((object *))) /* Int function */
+#define UF (unaryfunc)
+#define BF (binaryfunc)
+#define TF (ternaryfunc)
+#define IF (inquiry)
static number_methods long_as_number = {
BF long_add, /*nb_add*/
@@ -1341,7 +1375,7 @@ static number_methods long_as_number = {
BF long_div, /*nb_divide*/
BF long_mod, /*nb_remainder*/
BF long_divmod, /*nb_divmod*/
- BF long_pow, /*nb_power*/
+ TF long_pow, /*nb_power*/
UF long_neg, /*nb_negative*/
UF long_pos, /*tp_positive*/
UF long_abs, /*tp_absolute*/
@@ -1353,7 +1387,7 @@ static number_methods long_as_number = {
BF long_xor, /*nb_xor*/
BF long_or, /*nb_or*/
(int (*) FPROTO((object **, object **)))
- long_coerce, /*nb_coerce*/
+ (coercion)long_coerce, /*nb_coerce*/
UF long_int, /*nb_int*/
UF long_long, /*nb_long*/
UF long_float, /*nb_float*/
@@ -1367,16 +1401,16 @@ typeobject Longtype = {
"long int",
sizeof(longobject) - sizeof(digit),
sizeof(digit),
- long_dealloc, /*tp_dealloc*/
+ (destructor)long_dealloc, /*tp_dealloc*/
0, /*tp_print*/
0, /*tp_getattr*/
0, /*tp_setattr*/
(int (*) FPROTO((object *, object *)))
- long_compare, /*tp_compare*/
- long_repr, /*tp_repr*/
+ (cmpfunc)long_compare, /*tp_compare*/
+ (reprfunc)long_repr, /*tp_repr*/
&long_as_number,/*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
(long (*) FPROTO((object *)))
- long_hash, /*tp_hash*/
+ (hashfunc)long_hash, /*tp_hash*/
};
generated by cgit v0.12 at 2024-11-19 01:00:08 (GMT)