--- /dev/null
+#
+# This function determins if the the isinf function isavailable on this
+# platform.
+#
+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);}])
+AC_SINGLE_CXX_CHECK([HAVE_FINITE_IN_IEEEFP_H], [ac_cv_func_finite_in_ieeefp_h],
+ [finite], [<ieeefp.h>],
+ [#include <ieeefp.h>
+ int foo(float f) {return finite(f);}])
+])
+
+
--- /dev/null
+#
+# 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);}])
+])
header file.])
fi])
-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);}])
-])
-
-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);}])
-AC_SINGLE_CXX_CHECK([HAVE_FINITE_IN_IEEEFP_H], [ac_cv_func_finite_in_ieeefp_h],
- [finite], [<ieeefp.h>],
- [#include <ieeefp.h>
- int foo(float f) {return finite(f);}])
-])
-