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Oops. Need to check not only that HAVE_DECL_ISINF is defined, but also

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that it's equal to 1.  (If isinf isn't defined, HAVE_DECL_ISINF is
defined to be 0, rather than being undefined.)
This commit is contained in:
Mark Dickinson 2009-01-04 16:06:40 +00:00
parent d181e3a246
commit 41fbae1ac9
1 changed files with 2 additions and 2 deletions
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4
Include/pymath.h
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@ -87,7 +87,7 @@ extern double copysign(double, double);
* Note: PC/pyconfig.h defines Py_IS_NAN as _isnan
*/
#ifndef Py_IS_NAN
#ifdef HAVE_DECL_ISNAN
#ifdef HAVE_DECL_ISNAN && HAVE_DECL_ISNAN == 1
#define Py_IS_NAN(X) isnan(X)
#else
#define Py_IS_NAN(X) ((X) != (X))
@ -104,7 +104,7 @@ extern double copysign(double, double);
* Note: PC/pyconfig.h defines Py_IS_INFINITY as _isinf
*/
#ifndef Py_IS_INFINITY
#ifdef HAVE_DECL_ISINF
#ifdef HAVE_DECL_ISINF && HAVE_DECL_ISINF == 1
#define Py_IS_INFINITY(X) isinf(X)
#else
#define Py_IS_INFINITY(X) ((X) && (X)*0.5 == (X))