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Replace SIGFPE paranoia around strtod and atof. I don't believe these

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fncs are allowed to raise SIGFPE (see the C std), but OK by me if
people using --with-fpectl want to pay for checking anyway.
This commit is contained in:
Tim Peters 2000-09-25 21:01:28 +00:00
parent 7f577e7fd4
commit 858346e484
1 changed files with 4 additions and 0 deletions
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4
Objects/floatobject.c
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@ -182,7 +182,9 @@ PyFloat_FromString(PyObject *v, char **pend)
* whether strtod sets errno on underflow is not defined, so we can't * whether strtod sets errno on underflow is not defined, so we can't
* key off errno. * key off errno.
*/ */
PyFPE_START_PROTECT("strtod", return NULL)
x = strtod(s, (char **)&end); x = strtod(s, (char **)&end);
PyFPE_END_PROTECT(x)
errno = 0; errno = 0;
/* Believe it or not, Solaris 2.6 can move end *beyond* the null /* Believe it or not, Solaris 2.6 can move end *beyond* the null
byte at the end of the string, when the input is inf(inity). */ byte at the end of the string, when the input is inf(inity). */
@ -210,7 +212,9 @@ PyFloat_FromString(PyObject *v, char **pend)
if (x == 0.0) { if (x == 0.0) {
/* See above -- may have been strtod being anal /* See above -- may have been strtod being anal
about denorms. */ about denorms. */
PyFPE_START_PROTECT("atof", return NULL)
x = atof(s); x = atof(s);
PyFPE_END_PROTECT(x)
errno = 0; /* whether atof ever set errno is undefined */ errno = 0; /* whether atof ever set errno is undefined */
} }
return PyFloat_FromDouble(x); return PyFloat_FromDouble(x);