| //===-- 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; |
