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| -rw-r--r-- | lib/Support/IsNAN.cpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/lib/Support/IsNAN.cpp b/lib/Support/IsNAN.cpp new file mode 100644 index 0000000000..ade6bf1dc8 --- /dev/null +++ b/lib/Support/IsNAN.cpp @@ -0,0 +1,31 @@ +//===-- IsNAN.cpp ---------------------------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file was developed by the LLVM research group and is distributed under +// the University of Illinois Open Source License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// Platform-independent wrapper around C99 isnan(). +// +//===----------------------------------------------------------------------===// + +#include "Config/config.h" +#if HAVE_ISNAN_IN_MATH_H +# include <math.h> +#elif HAVE_ISNAN_IN_CMATH +# include <cmath> +#elif HAVE_STD_ISNAN_IN_CMATH +# include <cmath> +using std::isnan; +#else +# error "Don't know how to get isnan()" +#endif + +namespace llvm { + +int IsNAN (float f) { return isnan (f); } +int IsNAN (double d) { return isnan (d); } + +}; // end namespace llvm; |