File indexing completed on 2024-05-12 15:54:18

 /*
  * Copyright (C) 2001-2015 Klaralvdalens Datakonsult AB.  All rights reserved.
  *
  * This file is part of the KD Chart library.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
  * published by the Free Software Foundation; either version 2 of
  * the License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef KCHARTMATH_P_H
 #define KCHARTMATH_P_H
 
 #if defined Q_OS_DARWIN
 #include <math.h>
 #endif
 
 #include <cmath>
 
 #ifdef Q_OS_SOLARIS
 #include <sunmath.h>
 #include <math.h>
 #endif
 
 #include <qglobal.h>
 
 #include <limits>
 
 #define NaN std::numeric_limits< qreal >::quiet_NaN()
 #define signalingNaN std::numeric_limits< qreal >::signaling_NaN()
 
 #ifndef M_PI
 #define M_PI 3.14159265358979323846
 #endif
 
 #define DEGTORAD(d) (d)*M_PI/180
 
 // We use our own ISNAN / ISINF in the code to detect
 // that we defined them.
 // reason: Windows does not have isnan() / isinf()
 #if defined (Q_OS_WIN)
 #include <float.h>
 #define ISNAN(x ) _isnan(x )
 #define ISINF(x ) (!(_finite(x ) + _isnan(x ) ) )
 #elif defined (Q_OS_DARWIN)
 // OS X does have isnan() & isinf() in math.h, but it appears to be
 // required to cast the argument to a double explicitly.
 #define ISNAN(x) isnan(double(x))
 #define ISINF(x) isinf(double(x))
 #elif defined (Q_OS_CYGWIN) || __cplusplus >= 201103L
 #define ISNAN(x) std::isnan(x)
 #define ISINF(x) std::isinf(x)
 #else
 #define ISNAN(x) isnan(x)
 #define ISINF(x) isinf(x)
 #endif
 
 #endif