| Brian Gaeke | 30135b2 | 2004-06-22 23:54:38 +0000 | [diff] [blame^] | 1 | //===-- IsNAN.cpp ---------------------------------------------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file was developed by the LLVM research group and is distributed under |
| 6 | // the University of Illinois Open Source License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // Platform-independent wrapper around C99 isnan(). |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include "Config/config.h" |
| 15 | #if HAVE_ISNAN_IN_MATH_H |
| 16 | # include <math.h> |
| 17 | #elif HAVE_ISNAN_IN_CMATH |
| 18 | # include <cmath> |
| 19 | #elif HAVE_STD_ISNAN_IN_CMATH |
| 20 | # include <cmath> |
| 21 | using std::isnan; |
| 22 | #else |
| 23 | # error "Don't know how to get isnan()" |
| 24 | #endif |
| 25 | |
| 26 | namespace llvm { |
| 27 | |
| 28 | int IsNAN (float f) { return isnan (f); } |
| 29 | int IsNAN (double d) { return isnan (d); } |
| 30 | |
| 31 | }; // end namespace llvm; |