mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-28 06:27:16 +00:00
19 lines
792 B
Plaintext
19 lines
792 B
Plaintext
|
#
|
||
|
|
# This function determines if the isnan function is available on this
|
||
|
|
# platform.
|
||
|
|
#
|
||
|
|
AC_DEFUN([AC_FUNC_ISNAN],[
|
||
|
|
AC_SINGLE_CXX_CHECK([HAVE_ISNAN_IN_MATH_H], [ac_cv_func_isnan_in_math_h],
|
||
|
|
[isnan], [<math.h>],
|
||
|
|
[#include <math.h>
|
||
|
|
int foo(float f) {return isnan(f);}])
|
||
|
|
AC_SINGLE_CXX_CHECK([HAVE_ISNAN_IN_CMATH], [ac_cv_func_isnan_in_cmath],
|
||
|
|
[isnan], [<cmath>],
|
||
|
|
[#include <cmath>
|
||
|
|
int foo(float f) {return isnan(f);}])
|
||
|
|
AC_SINGLE_CXX_CHECK([HAVE_STD_ISNAN_IN_CMATH], [ac_cv_func_std_isnan_in_cmath],
|
||
|
|
[std::isnan], [<cmath>],
|
||
|
|
[#include <cmath>
|
||
|
|
using std::isnan; int foo(float f) {return isnan(f);}])
|
||
|
|
])
|