simgear/simgear/compiler.h
James Turner bcfadd6657 Prefix GCC version constant.
From: Markus Wanner <markus@bluegap.ch>
2013-09-14 17:29:59 +01:00

199 lines
5.1 KiB
C

/**************************************************************************
* compiler.h -- C++ Compiler Portability Macros
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $Id$
*
**************************************************************************/
/** \file compiler.h
* A set of defines to encapsulate compiler and platform differences.
* Please refer to the source code for full documentation on this file.
*
* This file is useful to set compiler-specific options in every file - for
* example, disabling warnings.
*
*/
#ifndef _SG_COMPILER_H
#define _SG_COMPILER_H
/*
* Helper macro SG_STRINGIZE:
* Converts the parameter X to a string after macro replacement
* on X has been performed.
*/
#define SG_STRINGIZE(X) SG_DO_STRINGIZE(X)
#define SG_DO_STRINGIZE(X) #X
#ifdef __GNUC__
# if __GNUC__ < 3
# error Time to upgrade. GNU compilers < 3.0 not supported
# elif (__GNUC__ == 3) && (__GNUC_MINOR__ < 4)
# warning GCC compilers prior to 3.4 are suspect
# endif
# define SG_GCC_VERSION (__GNUC__ * 10000 \
+ __GNUC_MINOR__ * 100 \
+ __GNUC_PATCHLEVEL__)
# define SG_COMPILER_STR "GNU C++ version " SG_STRINGIZE(__GNUC__) "." SG_STRINGIZE(__GNUC_MINOR__)
#endif // __GNUC__
/* KAI C++ */
#if defined(__KCC)
# define SG_COMPILER_STR "Kai C++ version " SG_STRINGIZE(__KCC_VERSION)
#endif // __KCC
//
// Microsoft compilers.
//
#ifdef _MSC_VER
# define bcopy(from, to, n) memcpy(to, from, n)
# if _MSC_VER >= 1200 // msvc++ 6.0 or greater
# define isnan _isnan
# define snprintf _snprintf
# if _MSC_VER < 1500
# define vsnprintf _vsnprintf
# endif
# define copysign _copysign
# define strcasecmp stricmp
# undef min
# undef max
# pragma warning(disable: 4786) // identifier was truncated to '255' characters
# pragma warning(disable: 4244) // conversion from double to float
# pragma warning(disable: 4305) //
# else
# error What version of MSVC++ is this?
# endif
# define SG_COMPILER_STR "Microsoft Visual C++ version " SG_STRINGIZE(_MSC_VER)
#endif // _MSC_VER
//
// Native SGI compilers
//
#if defined ( sgi ) && !defined( __GNUC__ )
# if (_COMPILER_VERSION < 740)
# error Need MipsPro 7.4.0 or higher now
# endif
#define SG_HAVE_NATIVE_SGI_COMPILERS
#pragma set woff 1001,1012,1014,1116,1155,1172,1174
#pragma set woff 1401,1460,1551,1552,1681
#ifdef __cplusplus
# pragma set woff 1682,3303
# pragma set woff 3624
#endif
# define SG_COMPILER_STR "SGI MipsPro compiler version " SG_STRINGIZE(_COMPILER_VERSION)
#endif // Native SGI compilers
#if defined (__sun)
# define SG_UNIX
# include <strings.h>
# include <memory.h>
# if defined ( __cplusplus )
// typedef unsigned int size_t;
extern "C" {
extern void *memmove(void *, const void *, size_t);
}
# else
extern void *memmove(void *, const void *, size_t);
# endif // __cplusplus
# if !defined( __GNUC__ )
# define SG_COMPILER_STR "Sun compiler version " SG_STRINGIZE(__SUNPRO_CC)
# endif
#endif // sun
//
// Intel C++ Compiler
//
#if defined(__ICC) || defined (__ECC)
# define SG_COMPILER_STR "Intel C++ version " SG_STRINGIZE(__ICC)
#endif // __ICC
//
// Platform dependent gl.h and glut.h definitions
//
#ifdef __APPLE__
# define SG_MAC
# define SG_UNIX
# ifdef __GNUC__
# if ( __GNUC__ > 3 ) || ( __GNUC__ == 3 && __GNUC_MINOR__ >= 3 )
inline int (isnan)(double r) { return !(r <= 0 || r >= 0); }
# else
// any C++ header file undefines isinf and isnan
// so this should be included before <iostream>
// the functions are STILL in libm (libSystem on mac os x)
extern "C" int (isnan)(double);
extern "C" int (isinf)(double);
# endif
# else
inline int (isnan)(double r) { return !(r <= 0 || r >= 0); }
# endif
#endif
#if defined (__FreeBSD__)
# define SG_UNIX
#include <sys/param.h>
# if __FreeBSD_version < 500000
extern "C" {
inline int isnan(double r) { return !(r <= 0 || r >= 0); }
}
# endif
#endif
#if defined (__CYGWIN__)
# define SG_WINDOWS
# define SG_UNIX
# include <ieeefp.h> // isnan
#endif
// includes both MSVC and mingw compilers
#if defined(_WIN32) || defined(__WIN32__)
# define SG_WINDOWS
#endif
#if defined(__linux__) || defined(_AIX) || defined ( sgi )
# define SG_UNIX
#endif
#if defined( __GNUC__ )
# define DEPRECATED __attribute__ ((deprecated))
#else
# define DEPRECATED
#endif
//
// No user modifiable definitions beyond here.
//
#endif // _SG_COMPILER_H