65 lines
1.5 KiB
C++
65 lines
1.5 KiB
C++
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/* __MSDOS__ set when compiling for DOS (not Windows)
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* _Windows set when compiling for any version of Microsoft Windows
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* __WIN32__ set when compiling for Windows95 or WindowsNT (32 bit mode)
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* __32BIT__ set when compiling in 32-bit "flat" mode (DOS or Windows)
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*
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* Copyright 1998-2002, ITB CompuPhase, The Netherlands.
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* info@compuphase.com.
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*/
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#ifndef _OSDEFS_H
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#define _OSDEFS_H
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/* Every compiler uses different "default" macros to indicate the mode
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* it is in. Throughout the source, we use the Borland C++ macros, so
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* the macros of Watcom C/C++ and Microsoft Visual C/C++ are mapped to
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* those of Borland C++.
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*/
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#if defined(__WATCOMC__)
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# if defined(__WINDOWS__) || defined(__NT__)
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# define _Windows 1
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# endif
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# ifdef __386__
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# define __32BIT__ 1
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# endif
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# if defined(_Windows) && defined(__32BIT__)
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# define __WIN32__ 1
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# endif
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#elif defined(_MSC_VER)
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# if defined(_WINDOWS) || defined(_WIN32)
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# define _Windows 1
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# endif
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# ifdef _WIN32
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# define __WIN32__ 1
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# define __32BIT__ 1
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# endif
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#endif
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#if defined __linux__
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#include <endian.h>
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#endif
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#if defined __APPLE__
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#include <sys/types.h>
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#endif
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/* Linux NOW has these */
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#if !defined BIG_ENDIAN
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#define BIG_ENDIAN 4321
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#endif
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#if !defined LITTLE_ENDIAN
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#define LITTLE_ENDIAN 1234
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#endif
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/* educated guess, BYTE_ORDER is undefined, i386 is common => little endian */
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#if !defined BYTE_ORDER
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#if defined UCLINUX
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#define BYTE_ORDER BIG_ENDIAN
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#else
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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#endif
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#endif /* _OSDEFS_H */
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