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Commit | Line | Data |
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223e47cc LB |
1 | # |
2 | # This function determins if the isinf function isavailable on this | |
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>], | |
22 | [float f; std::isinf(f);]) | |
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 |