| Daniel Dunbar | 1e5e501 | 2011-10-18 23:10:47 +0000 | [diff] [blame] | 1 | # |
| Sylvestre Ledru | 35521e2 | 2012-07-23 08:51:15 +0000 | [diff] [blame] | 2 | # This function determins if the isinf function isavailable on this |
| Daniel Dunbar | 1e5e501 | 2011-10-18 23:10:47 +0000 | [diff] [blame] | 3 | # platform. |
| 4 | # |
| 5 | AC_DEFUN([AC_FUNC_ISINF],[ |
| 6 | AC_SINGLE_CXX_CHECK([ac_cv_func_isinf_in_math_h], |
| 7 | [isinf], [<math.h>], |
| 8 | [float f; isinf(f);]) |
| 9 | if test "$ac_cv_func_isinf_in_math_h" = "yes" ; then |
| 10 | AC_DEFINE([HAVE_ISINF_IN_MATH_H],1,[Set to 1 if the isinf function is found in <math.h>]) |
| 11 | fi |
| 12 | |
| 13 | AC_SINGLE_CXX_CHECK([ac_cv_func_isinf_in_cmath], |
| 14 | [isinf], [<cmath>], |
| 15 | [float f; isinf(f);]) |
| 16 | if test "$ac_cv_func_isinf_in_cmath" = "yes" ; then |
| 17 | AC_DEFINE([HAVE_ISINF_IN_CMATH],1,[Set to 1 if the isinf function is found in <cmath>]) |
| 18 | fi |
| 19 | |
| 20 | AC_SINGLE_CXX_CHECK([ac_cv_func_std_isinf_in_cmath], |
| 21 | [std::isinf], [<cmath>], |
| Eric Christopher | eb75cc2 | 2012-03-26 02:09:01 +0000 | [diff] [blame] | 22 | [float f; std::isinf(f);]) |
| Daniel Dunbar | 1e5e501 | 2011-10-18 23:10:47 +0000 | [diff] [blame] | 23 | if test "$ac_cv_func_std_isinf_in_cmath" = "yes" ; then |
| 24 | AC_DEFINE([HAVE_STD_ISINF_IN_CMATH],1,[Set to 1 if the std::isinf function is found in <cmath>]) |
| 25 | fi |
| 26 | |
| 27 | AC_SINGLE_CXX_CHECK([ac_cv_func_finite_in_ieeefp_h], |
| 28 | [finite], [<ieeefp.h>], |
| 29 | [float f; finite(f);]) |
| 30 | if test "$ac_cv_func_finite_in_ieeefp_h" = "yes" ; then |
| 31 | AC_DEFINE([HAVE_FINITE_IN_IEEEFP_H],1,[Set to 1 if the finite function is found in <ieeefp.h>]) |
| 32 | fi |
| 33 | |
| 34 | ]) |
| 35 | |
| 36 | |