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Add support for checking for isinf().

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Patch contributed by Bill Wendling.

llvm-svn: 15052
This commit is contained in:
Brian Gaeke 2004-07-21 03:14:39 +00:00
parent cb31d835ed
commit b29aef7a08
1 changed files with 14 additions and 0 deletions
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14
autoconf/acinclude.m4
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@ -6282,3 +6282,17 @@ AC_SINGLE_CXX_CHECK([HAVE_STD_ISNAN_IN_CMATH], [ac_cv_func_std_isnan_in_cmath],
using std::isnan; int foo(float f) {return isnan(f);}])
])
AC_DEFUN([AC_FUNC_ISINF],[
AC_SINGLE_CXX_CHECK([HAVE_ISINF_IN_MATH_H], [ac_cv_func_isinf_in_math_h],
[isinf], [<math.h>],
[#include <math.h>
int foo(float f) {return isinf(f);}])
AC_SINGLE_CXX_CHECK([HAVE_ISINF_IN_CMATH], [ac_cv_func_isinf_in_cmath],
[isinf], [<cmath>],
[#include <cmath>
int foo(float f) {return isinf(f);}])
AC_SINGLE_CXX_CHECK([HAVE_STD_ISINF_IN_CMATH], [ac_cv_func_std_isinf_in_cmath],
[std::isinf], [<cmath>],
[#include <cmath>
using std::isinf; int foo(float f) {return isinf(f);}])
])