1 /**************************************************************************
2 * compiler.h -- C++ Compiler Portability Macros
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 **************************************************************************/
23 * A set of defines to encapsulate compiler and platform differences.
24 * Please refer to the source code for full documentation on this file.
26 * This file is useful to set compiler-specific options in every file - for
27 * example, disabling warnings.
31 #ifndef _SG_COMPILER_H
32 #define _SG_COMPILER_H
35 * Helper macro SG_STRINGIZE:
36 * Converts the parameter X to a string after macro replacement
37 * on X has been performed.
39 #define SG_STRINGIZE(X) SG_DO_STRINGIZE(X)
40 #define SG_DO_STRINGIZE(X) #X
44 # error Time to upgrade. GNU compilers < 3.0 not supported
45 # elif (__GNUC__ == 3) && (__GNUC_MINOR__ < 4)
46 # warning GCC compilers prior to 3.4 are suspect
49 # define GCC_VERSION (__GNUC__ * 10000 \
50 + __GNUC_MINOR__ * 100 \
51 + __GNUC_PATCHLEVEL__)
52 # define SG_COMPILER_STR "GNU C++ version " SG_STRINGIZE(__GNUC__) "." SG_STRINGIZE(__GNUC_MINOR__)
57 # define SG_COMPILER_STR "Kai C++ version " SG_STRINGIZE(__KCC_VERSION)
61 // Microsoft compilers.
64 # define bcopy(from, to, n) memcpy(to, from, n)
66 # if _MSC_VER >= 1200 // msvc++ 6.0 or greater
68 # define snprintf _snprintf
70 # define vsnprintf _vsnprintf
72 # define copysign _copysign
73 # define strcasecmp stricmp
78 # pragma warning(disable: 4786) // identifier was truncated to '255' characters
79 # pragma warning(disable: 4244) // conversion from double to float
80 # pragma warning(disable: 4305) //
83 # error What version of MSVC++ is this?
86 # define SG_COMPILER_STR "Microsoft Visual C++ version " SG_STRINGIZE(_MSC_VER)
91 // Native SGI compilers
94 #if defined ( sgi ) && !defined( __GNUC__ )
95 # if (_COMPILER_VERSION < 740)
96 # error Need MipsPro 7.4.0 or higher now
99 #define SG_HAVE_NATIVE_SGI_COMPILERS
101 #pragma set woff 1001,1012,1014,1116,1155,1172,1174
102 #pragma set woff 1401,1460,1551,1552,1681
105 # pragma set woff 1682,3303
106 # pragma set woff 3624
109 # define SG_COMPILER_STR "SGI MipsPro compiler version " SG_STRINGIZE(_COMPILER_VERSION)
111 #endif // Native SGI compilers
116 # include <strings.h>
118 # if defined ( __cplusplus )
119 // typedef unsigned int size_t;
121 extern void *memmove(void *, const void *, size_t);
124 extern void *memmove(void *, const void *, size_t);
125 # endif // __cplusplus
127 # if !defined( __GNUC__ )
128 # define SG_COMPILER_STR "Sun compiler version " SG_STRINGIZE(__SUNPRO_CC)
134 // Intel C++ Compiler
136 #if defined(__ICC) || defined (__ECC)
137 # define SG_COMPILER_STR "Intel C++ version " SG_STRINGIZE(__ICC)
141 // Platform dependent gl.h and glut.h definitions
148 # if ( __GNUC__ > 3 ) || ( __GNUC__ == 3 && __GNUC_MINOR__ >= 3 )
149 inline int (isnan)(double r) { return !(r <= 0 || r >= 0); }
151 // any C++ header file undefines isinf and isnan
152 // so this should be included before <iostream>
153 // the functions are STILL in libm (libSystem on mac os x)
154 extern "C" int (isnan)(double);
155 extern "C" int (isinf)(double);
158 inline int (isnan)(double r) { return !(r <= 0 || r >= 0); }
162 #if defined (__FreeBSD__)
164 #include <sys/param.h>
165 # if __FreeBSD_version < 500000
167 inline int isnan(double r) { return !(r <= 0 || r >= 0); }
172 #if defined (__CYGWIN__)
175 # include <ieeefp.h> // isnan
178 // includes both MSVC and mingw compilers
179 #if defined(_WIN32) || defined(__WIN32__)
183 #if defined(__linux__) || defined(_AIX) || defined ( sgi )
187 #if defined( __GNUC__ )
188 # define DEPRECATED __attribute__ ((deprecated))
194 // No user modifiable definitions beyond here.
197 #endif // _SG_COMPILER_H