CImg.h

#ifndef CIMG_H
#define CIMG_H

/*
 #
 #  File            : CImg.h
 #                    ( C++ header file )
 #
 #  Description     : The C++ Template Image Processing Toolkit.
 #                    This file is the main component of the CImg Library project.
 #                    ( http://cimg.eu )
 #
 #  Project manager : David Tschumperle.
 #                    ( http://tschumperle.users.greyc.fr/ )
 #
 #                    A complete list of contributors is available in file 'README.txt'
 #                    distributed within the CImg package.
 #
 #  Licenses        : This file is 'dual-licensed', you have to choose one
 #                    of the two licenses below to apply.
 #
 #                    CeCILL-C
 #                    The CeCILL-C license is close to the GNU LGPL.
 #                    ( http://www.cecill.info/licences/Licence_CeCILL-C_V1-en.html )
 #
 #                or  CeCILL v2.0
 #                    The CeCILL license is compatible with the GNU GPL.
 #                    ( http://www.cecill.info/licences/Licence_CeCILL_V2-en.html )
 #
 #  This software is governed either by the CeCILL or the CeCILL-C license
 #  under French law and abiding by the rules of distribution of free software.
 #  You can  use, modify and or redistribute the software under the terms of
 #  the CeCILL or CeCILL-C licenses as circulated by CEA, CNRS and INRIA
 #  at the following URL: "http://www.cecill.info".
 #
 #  As a counterpart to the access to the source code and  rights to copy,
 #  modify and redistribute granted by the license, users are provided only
 #  with a limited warranty  and the software's author,  the holder of the
 #  economic rights,  and the successive licensors  have only  limited
 #  liability.
 #
 #  In this respect, the user's attention is drawn to the risks associated
 #  with loading,  using,  modifying and/or developing or reproducing the
 #  software by the user in light of its specific status of free software,
 #  that may mean  that it is complicated to manipulate,  and  that  also
 #  therefore means  that it is reserved for developers  and  experienced
 #  professionals having in-depth computer knowledge. Users are therefore
 #  encouraged to load and test the software's suitability as regards their
 #  requirements in conditions enabling the security of their systems and/or
 #  data to be ensured and,  more generally, to use and operate it in the
 #  same conditions as regards security.
 #
 #  The fact that you are presently reading this means that you have had
 #  knowledge of the CeCILL and CeCILL-C licenses and that you accept its terms.
 #
*/

// Set version number of the library.
#ifndef cimg_version
#define cimg_version 200

/*-----------------------------------------------------------
 #
 # Test and possibly auto-set CImg configuration variables
 # and include required headers.
 #
 # If you find that the default configuration variables are
 # not adapted to your system, you can override their values
 # before including the header file "CImg.h"
 # (use the #define directive).
 #
 ------------------------------------------------------------*/

// Include standard C++ headers.
// This is the minimal set of required headers to make CImg-based codes compile.
#include <cstdio>
#include <cstdlib>
#include <cstdarg>
#include <cstring>
#include <cmath>
#include <cfloat>
#include <climits>
#include <ctime>
#include <exception>
#include <algorithm>

// Detect/configure OS variables.
//
// Define 'cimg_OS' to: '0' for an unknown OS (will try to minize library dependencies).
//                      '1' for a Unix-like OS (Linux, Solaris, BSD, MacOSX, Irix, ...).
//                      '2' for Microsoft Windows.
//                      (auto-detection is performed if 'cimg_OS' is not set by the user).
#ifndef cimg_OS
#if defined(unix)        || defined(__unix)      || defined(__unix__) \
 || defined(linux)       || defined(__linux)     || defined(__linux__) \
 || defined(sun)         || defined(__sun) \
 || defined(BSD)         || defined(__OpenBSD__) || defined(__NetBSD__) \
 || defined(__FreeBSD__) || defined (__DragonFly__) \
 || defined(sgi)         || defined(__sgi) \
 || defined(__MACOSX__)  || defined(__APPLE__) \
 || defined(__CYGWIN__)
#define cimg_OS 1
#elif defined(_MSC_VER) || defined(WIN32)  || defined(_WIN32) || defined(__WIN32__) \
   || defined(WIN64)    || defined(_WIN64) || defined(__WIN64__)
#define cimg_OS 2
#else
#define cimg_OS 0
#endif
#elif !(cimg_OS==0 || cimg_OS==1 || cimg_OS==2)
#error CImg Library: Invalid configuration variable 'cimg_OS'.
#error (correct values are '0 = unknown OS', '1 = Unix-like OS', '2 = Microsoft Windows').
#endif
#ifndef cimg_date
#define cimg_date __DATE__
#endif
#ifndef cimg_time
#define cimg_time __TIME__
#endif

// Disable silly warnings on some Microsoft VC++ compilers.
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable:4127)
#pragma warning(disable:4244)
#pragma warning(disable:4311)
#pragma warning(disable:4312)
#pragma warning(disable:4512)
#pragma warning(disable:4571)
#pragma warning(disable:4640)
#pragma warning(disable:4706)
#pragma warning(disable:4710)
#pragma warning(disable:4800)
#pragma warning(disable:4804)
#pragma warning(disable:4820)
#pragma warning(disable:4996)
#define _CRT_SECURE_NO_DEPRECATE 1
#define _CRT_SECURE_NO_WARNINGS 1
#define _CRT_NONSTDC_NO_DEPRECATE 1
#endif

// Define correct string functions for each compiler and OS.
#if cimg_OS==2 && defined(_MSC_VER)
#define cimg_sscanf std::sscanf
#define cimg_sprintf std::sprintf
#define cimg_snprintf cimg::_snprintf
#define cimg_vsnprintf cimg::_vsnprintf
#else
#include <stdio.h>
#if defined(__MACOSX__) || defined(__APPLE__)
#define cimg_sscanf cimg::_sscanf
#define cimg_sprintf cimg::_sprintf
#define cimg_snprintf cimg::_snprintf
#define cimg_vsnprintf cimg::_vsnprintf
#else
#define cimg_sscanf std::sscanf
#define cimg_sprintf std::sprintf
#define cimg_snprintf snprintf
#define cimg_vsnprintf vsnprintf
#endif
#endif

// Include OS-specific headers.
#if cimg_OS==1
#include <sys/types.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <unistd.h>
#include <dirent.h>
#include <fnmatch.h>
#elif cimg_OS==2
#ifndef std_fopen
#define std_fopen cimg::win_fopen
#endif
#ifndef NOMINMAX
#define NOMINMAX
#endif
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#ifndef _WIN32_IE
#define _WIN32_IE 0x0400
#endif
#include <shlobj.h>
#include <process.h>
#include <io.h>
#endif

// Look for C++11 features.
#ifndef cimg_use_cpp11
#if __cplusplus>201100
#define cimg_use_cpp11 1
#else
#define cimg_use_cpp11 0
#endif
#endif
#if cimg_use_cpp11==1
#include <initializer_list>
#include <utility>
#endif