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The SSE2 detection and enabling could potentially cause

Browse source 
problems for binary distributions of Python in situations
where the build machine has SSE2 but the target machine
does not.

Therefore, don't enable SSE2 instructions automatically on x86.
This commit is contained in:
Mark Dickinson 2009-04-18 20:17:52 +00:00
parent 153c70f6d7
commit 7abf8d4066
7 changed files with 47 additions and 280 deletions
Download patch file Download diff file Expand all files Collapse all files

14
Objects/floatobject.c
View file

@ -15,6 +15,11 @@
#define MAX(x, y) ((x) < (y) ? (y) : (x))
#define MIN(x, y) ((x) < (y) ? (x) : (y))
/* ascii character tests (as opposed to locale tests) */
#define ISSPACE(c) ((c) == ' ' || (c) == '\f' || (c) == '\n' || \
(c) == '\r' || (c) == '\t' || (c) == '\v')
#define ISDIGIT(c) ((c) >= '0' && (c) <= '9')
#ifdef HAVE_IEEEFP_H
#include <ieeefp.h>
#endif
@ -188,7 +193,7 @@ PyFloat_FromString(PyObject *v)
}
last = s + len;
while (*s && isspace(Py_CHARMASK(*s)))
while (*s && ISSPACE(Py_CHARMASK(*s)))
s++;
if (*s == '\0') {
PyErr_SetString(PyExc_ValueError, "empty string for float()");
@ -245,7 +250,7 @@ PyFloat_FromString(PyObject *v)
}
/* Since end != s, the platform made *some* kind of sense out
of the input. Trust it. */
while (*end && isspace(Py_CHARMASK(*end)))
while (*end && ISSPACE(Py_CHARMASK(*end)))
end++;
if (*end != '\0') {
PyOS_snprintf(buffer, sizeof(buffer),
@ -1275,7 +1280,7 @@ float_fromhex(PyObject *cls, PyObject *arg)
********************/
/* leading whitespace and optional sign */
while (isspace(Py_CHARMASK(*s)))
while (ISSPACE(Py_CHARMASK(*s)))
s++;
if (*s == '-') {
s++;
@ -1299,6 +1304,7 @@ float_fromhex(PyObject *cls, PyObject *arg)
s_store = s;
if (*s == '0') {
s++;
if (*s == 'x' || *s == 'X')
if (tolower(*s) == (int)'x')
s++;
else
@ -1345,7 +1351,7 @@ float_fromhex(PyObject *cls, PyObject *arg)
exp = 0;
/* optional trailing whitespace leading to the end of the string */
while (isspace(Py_CHARMASK(*s)))
while (ISSPACE(Py_CHARMASK(*s)))
s++;
if (s != s_end)
goto parse_error;