| 1 | /* $Id: CoinFinite.cpp 1448 2011-06-19 15:34:41Z stefan $ */ |
| 2 | // Copyright (C) 2011, International Business Machines |
| 3 | // Corporation and others. All Rights Reserved. |
| 4 | // This code is licensed under the terms of the Eclipse Public License (EPL). |
| 5 | |
| 6 | #include "CoinFinite.hpp" |
| 7 | #include "CoinUtilsConfig.h" |
| 8 | |
| 9 | #ifdef HAVE_CFLOAT |
| 10 | # include <cfloat> |
| 11 | #else |
| 12 | # ifdef HAVE_FLOAT_H |
| 13 | # include <float.h> |
| 14 | # endif |
| 15 | #endif |
| 16 | |
| 17 | #ifdef HAVE_CMATH |
| 18 | # include <cmath> |
| 19 | #else |
| 20 | # ifdef HAVE_MATH_H |
| 21 | # include <math.h> |
| 22 | # endif |
| 23 | #endif |
| 24 | |
| 25 | #ifdef HAVE_CIEEEFP |
| 26 | # include <cieeefp> |
| 27 | #else |
| 28 | # ifdef HAVE_IEEEFP_H |
| 29 | # include <ieeefp.h> |
| 30 | # endif |
| 31 | #endif |
| 32 | |
| 33 | bool CoinFinite(double val) |
| 34 | { |
| 35 | #ifdef COIN_C_FINITE |
| 36 | return COIN_C_FINITE(val)!=0; |
| 37 | #else |
| 38 | return val != DBL_MAX && val != -DBL_MAX; |
| 39 | #endif |
| 40 | } |
| 41 | |
| 42 | bool CoinIsnan(double val) |
| 43 | { |
| 44 | #ifdef COIN_C_ISNAN |
| 45 | return COIN_C_ISNAN(val)!=0; |
| 46 | #else |
| 47 | return false; |
| 48 | #endif |
| 49 | } |
| 50 | |