| # | |
| # This function determins if the the isinf function isavailable on this | |
| # platform. | |
| # | |
| AC_DEFUN([AC_FUNC_ISINF],[ | |
| AC_SINGLE_CXX_CHECK([ac_cv_func_isinf_in_math_h], | |
| [isinf], [<math.h>], | |
| [float f; isinf(f);]) | |
| if test "$ac_cv_func_isinf_in_math_h" = "yes" ; then | |
| AC_DEFINE([HAVE_ISINF_IN_MATH_H],1,[Set to 1 if the isinf function is found in <math.h>]) | |
| fi | |
| AC_SINGLE_CXX_CHECK([ac_cv_func_isinf_in_cmath], | |
| [isinf], [<cmath>], | |
| [float f; isinf(f);]) | |
| if test "$ac_cv_func_isinf_in_cmath" = "yes" ; then | |
| AC_DEFINE([HAVE_ISINF_IN_CMATH],1,[Set to 1 if the isinf function is found in <cmath>]) | |
| fi | |
| AC_SINGLE_CXX_CHECK([ac_cv_func_std_isinf_in_cmath], | |
| [std::isinf], [<cmath>], | |
| [float f; std::isinf(f)}]) | |
| if test "$ac_cv_func_std_isinf_in_cmath" = "yes" ; then | |
| AC_DEFINE([HAVE_STD_ISINF_IN_CMATH],1,[Set to 1 if the std::isinf function is found in <cmath>]) | |
| fi | |
| AC_SINGLE_CXX_CHECK([ac_cv_func_finite_in_ieeefp_h], | |
| [finite], [<ieeefp.h>], | |
| [float f; finite(f);]) | |
| if test "$ac_cv_func_finite_in_ieeefp_h" = "yes" ; then | |
| AC_DEFINE([HAVE_FINITE_IN_IEEEFP_H],1,[Set to 1 if the finite function is found in <ieeefp.h>]) | |
| fi | |
| ]) | |