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Fix detection of isnan and isinf

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The isnan() and isinf() are C99 macros not functions.

Also fix is_infinite(-INF) in case isinf is not defined.
This commit is contained in:
Christian Schmidt 2017-02-02 18:52:27 +01:00 • committed by Nikita Popov
parent 21d7878690
commit 9ea0949f43
6 changed files with 51 additions and 21 deletions
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1
NEWS
View file

@ -8,6 +8,7 @@ PHP NEWS
. Fixed bug #73998 (array_key_exists fails on arrays created by
get_object_vars). (mhagstrand)
. Fixed bug #73954 (NAN check fails on Alpine Linux with musl). (Andrea)
. Fixed bug #74039 (is_infinite(-INF) returns false). (Christian Schmidt)
- GD:
. Fixed bug #74031 (ReflectionFunction for imagepng is missing last two

3
Zend/Zend.m4
View file

@ -100,7 +100,8 @@ AC_FUNC_ALLOCA
AC_CHECK_FUNCS(memcpy strdup getpid kill strtod strtol finite fpclass sigsetjmp)
AC_ZEND_BROKEN_SPRINTF
AC_CHECK_FUNCS(finite isfinite isinf isnan)
AC_CHECK_FUNCS(finite)
AC_CHECK_DECLS([isfinite, isnan, isinf], [], [], [[#include <math.h>]])
ZEND_FP_EXCEPT

14
Zend/configure.in
View file

@ -64,13 +64,13 @@ int zend_sprintf(char *buffer, const char *format, ...);
/* To enable the is_nan, is_infinite and is_finite PHP functions */
#ifdef NETWARE
#define HAVE_ISNAN 1
#define HAVE_ISINF 1
#define HAVE_ISFINITE 1
#define HAVE_DECL_ISNAN 1
#define HAVE_DECL_ISINF 1
#define HAVE_DECL_ISINFINITE 1
#endif
#ifndef zend_isnan
#ifdef HAVE_ISNAN
#ifdef HAVE_DECL_ISNAN
#define zend_isnan(a) isnan(a)
#elif defined(HAVE_FPCLASS)
#define zend_isnan(a) ((fpclass(a) == FP_SNAN) || (fpclass(a) == FP_QNAN))
@ -79,18 +79,18 @@ int zend_sprintf(char *buffer, const char *format, ...);
#endif
#endif
#ifdef HAVE_ISINF
#ifdef HAVE_DECL_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)
#define zend_isinf(a) (((a)==INFINITY || (a)==-INFINITY)?1:0)
#elif defined(HAVE_FPCLASS)
#define zend_isinf(a) ((fpclass(a) == FP_PINF) || (fpclass(a) == FP_NINF))
#else
#define zend_isinf(a) 0
#endif
#if defined(HAVE_ISFINITE) || defined(isfinite)
#if defined(HAVE_DECL_ISINFINITE) || defined(isfinite)
#define zend_finite(a) isfinite(a)
#elif defined(HAVE_FINITE)
#define zend_finite(a) finite(a)

14
configure.in
View file

@ -69,13 +69,13 @@ int zend_sprintf(char *buffer, const char *format, ...);
/* To enable the is_nan, is_infinite and is_finite PHP functions */
#ifdef NETWARE
#define HAVE_ISNAN 1
#define HAVE_ISINF 1
#define HAVE_ISFINITE 1
#define HAVE_DECL_ISNAN 1
#define HAVE_DECL_ISINF 1
#define HAVE_DECL_ISINFINITE 1
#endif
#ifndef zend_isnan
#ifdef HAVE_ISNAN
#ifdef HAVE_DECL_ISNAN
#define zend_isnan(a) isnan(a)
#elif defined(HAVE_FPCLASS)
#define zend_isnan(a) ((fpclass(a) == FP_SNAN) || (fpclass(a) == FP_QNAN))
@ -84,18 +84,18 @@ int zend_sprintf(char *buffer, const char *format, ...);
#endif
#endif
#ifdef HAVE_ISINF
#ifdef HAVE_DECL_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)
#define zend_isinf(a) (((a)==INFINITY || (a)==-INFINITY)?1:0)
#elif defined(HAVE_FPCLASS)
#define zend_isinf(a) ((fpclass(a) == FP_PINF) || (fpclass(a) == FP_NINF))
#else
#define zend_isinf(a) 0
#endif
#if defined(HAVE_ISFINITE) || defined(isfinite)
#if defined(HAVE_DECL_ISINFINITE) || defined(isfinite)
#define zend_finite(a) isfinite(a)
#elif defined(HAVE_FINITE)
#define zend_finite(a) finite(a)

12
ext/standard/config.m4
View file

@ -420,7 +420,7 @@ AC_TRY_RUN([
#include <math.h>
#include <stdlib.h>
#ifdef HAVE_ISNAN
#ifdef HAVE_DECL_ISNAN
#define zend_isnan(a) isnan(a)
#elif defined(HAVE_FPCLASS)
#define zend_isnan(a) ((fpclass(a) == FP_SNAN) || (fpclass(a) == FP_QNAN))
@ -451,11 +451,11 @@ AC_TRY_RUN([
#include <math.h>
#include <stdlib.h>
#ifdef HAVE_ISINF
#ifdef HAVE_DECL_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)
#define zend_isinf(a) (((a)==INFINITY || (a)==-INFINITY)?1:0)
#elif defined(HAVE_FPCLASS)
#define zend_isinf(a) ((fpclass(a) == FP_PINF) || (fpclass(a) == FP_NINF))
#else
@ -485,11 +485,11 @@ AC_TRY_RUN([
#include <math.h>
#include <stdlib.h>
#ifdef HAVE_ISINF
#ifdef HAVE_DECL_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)
#define zend_isinf(a) (((a)==INFINITY || (a)==-INFINITY)?1:0)
#elif defined(HAVE_FPCLASS)
#define zend_isinf(a) ((fpclass(a) == FP_PINF) || (fpclass(a) == FP_NINF))
#else
@ -520,7 +520,7 @@ AC_TRY_RUN([
#include <math.h>
#include <stdlib.h>
#ifdef HAVE_ISNAN
#ifdef HAVE_DECL_ISNAN
#define zend_isnan(a) isnan(a)
#elif defined(HAVE_FPCLASS)
#define zend_isnan(a) ((fpclass(a) == FP_SNAN) || (fpclass(a) == FP_QNAN))

28
ext/standard/tests/math/bug74039.phpt Normal file
View file

@ -0,0 +1,28 @@
--TEST--
Bug #74039: is_infinite(-INF) returns false
--FILE--
<?php
var_dump(is_finite(INF));
var_dump(is_infinite(INF));
var_dump(is_nan(INF));
var_dump(is_finite(-INF));
var_dump(is_infinite(-INF));
var_dump(is_nan(-INF));
var_dump(is_finite(NAN));
var_dump(is_infinite(NAN));
var_dump(is_nan(NAN));
?>
--EXPECT--
bool(false)
bool(true)
bool(false)
bool(false)
bool(true)
bool(false)
bool(false)
bool(false)
bool(true)