From 1f84023b058932e149b951dc58d557263561309b Mon Sep 17 00:00:00 2001 From: Sascha Schumann Date: Sun, 20 Aug 2000 06:07:42 +0000 Subject: [PATCH] Add zend_isinf and zend_isnan. --- Zend/acconfig.h | 27 ++++++++++++++++++++------- 1 file changed, 20 insertions(+), 7 deletions(-) diff --git a/Zend/acconfig.h b/Zend/acconfig.h index 9b3153daf1..0d6d84b54e 100644 --- a/Zend/acconfig.h +++ b/Zend/acconfig.h @@ -35,18 +35,31 @@ int zend_sprintf(char *buffer, const char *format, ...); # define zend_sprintf sprintf #endif +#ifdef HAVE_ISNAN +#define zend_isnan(a) isnan(a) +#elif defined(NAN) +#define zend_isnan(a) (((a)==NAN)?1:0) +#else +#define zend_isnan(a) 0 +#endif + +#ifdef HAVE_ISINF +#define zend_isinf(a) isinf(a) +#elif defined(INFINITY) +/* Might not work, but is required by ISO C99 */ +#define zend_isinf(a) (((a)==INFINITY)?1:0) +#else +#define zend_isinf(a) 0 +#endif + +#include + #ifdef HAVE_FINITE #define zend_finite(a) finite(a) #elif defined(HAVE_ISFINITE) #define zend_finite(a) isfinite(a) -#elif defined(HAVE_ISNAN) && defined(HAVE_ISINF) -#define zend_finite(a) (isnan(a) ? 0 : isinf(a) ? 0 : 1) -#elif defined(HAVE_ISNAN) -#define zend_finite(a) (isnan(a) ? 0 : 1) -#elif defined(HAVE_ISINF) -#define zend_finite(a) (isinf(a) ? 0 : 1) #else -#define zend_finite(a) (1) +#define zend_finite(a) (zend_isnan(a) ? 0 : zend_isinf(a) ? 0 : 1) #endif /* -- 2.40.0