507 lines
14 KiB
C
507 lines
14 KiB
C
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/****************************************************************************
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*
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* SciTech Multi-platform Graphics Library
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*
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* ========================================================================
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*
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* The contents of this file are subject to the SciTech MGL Public
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* License Version 1.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.scitechsoft.com/mgl-license.txt
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*
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* Software distributed under the License is distributed on an
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* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc.
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*
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* The Initial Developer of the Original Code is SciTech Software, Inc.
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* All Rights Reserved.
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*
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* ========================================================================
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*
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* Language: ANSI C
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* Environment: any
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*
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* Description: General header file for operating system portable code.
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*
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****************************************************************************/
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#ifndef __SCITECH_H
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#define __SCITECH_H
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/* We have the following defines to identify the compilation environment:
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*
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* __16BIT__ Compiling for 16 bit code (any environment)
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* __32BIT__ Compiling for 32 bit code (any environment)
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* __MSDOS__ Compiling for MS-DOS (includes __WINDOWS16__, __WIN386__)
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* __REALDOS__ Compiling for MS-DOS (excludes __WINDOWS16__)
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* __MSDOS16__ Compiling for 16 bit MS-DOS
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* __MSDOS32__ Compiling for 32 bit MS-DOS
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* __WINDOWS__ Compiling for Windows
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* __WINDOWS16__ Compiling for 16 bit Windows (__MSDOS__ also defined)
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* __WINDOWS32__ Compiling for 32 bit Windows
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* __WIN32_VXD__ Compiling for a 32-bit C based VxD
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* __OS2__ Compiling for OS/2
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* __OS2_16__ Compiling for 16 bit OS/2
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* __OS2_32__ Compiling for 32 bit OS/2
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* __UNIX__ Compiling for Unix
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* __QNX__ Compiling for the QNX realtime OS (Unix compatible)
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* __LINUX__ Compiling for the Linux OS (Unix compatible)
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* __FREEBSD__ Compiling for the FreeBSD OS (Unix compatible)
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* __BEOS__ Compiling for the BeOS (Unix compatible)
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* __SMX32__ Compiling for the SMX 32-bit Real Time OS
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* __DRIVER__ Compiling for a 32-bit binary compatible driver
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*
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* __INTEL__ Compiling for Intel CPU's
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* __ALPHA__ Compiling for DEC Alpha CPU's
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* __MIPS__ Compiling for MIPS CPU's
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* __PPC__ Compiling for PowerPC CPU's
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* __MC68K__ Compiling for Motorola 680x0
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*
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*/
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#ifdef __SC__
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#if __INTSIZE == 4
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#define __SC386__
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#endif
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#endif
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#ifdef __GNUC__
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#if !defined(__BEOS__)
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#define __cdecl /* GCC doesn't know about __cdecl modifiers */
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#endif
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#define __FLAT__ /* GCC is always 32 bit flat model */
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#define __HAS_BOOL__ /* Latest GNU C++ has ibool type */
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#include <stdio.h> /* Bring in for definition of NULL */
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#endif
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#ifdef __BORLANDC__
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#if (__BORLANDC__ >= 0x500) || defined(CLASSLIB_DEFS_H)
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#define __HAS_BOOL__ /* Borland C++ 5.0 and later define ibool type */
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#endif
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#endif
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/*---------------------------------------------------------------------------
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* Determine the compile time environment. This must be done for each
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* supported platform so that we can determine at compile time the target
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* environment, hopefully without requiring #define's from the user.
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*-------------------------------------------------------------------------*/
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/* 32-bit binary compatible driver. Compiled as Win32, but as OS neutral */
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#ifdef __DRIVER__
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#ifndef __32BIT__
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#define __32BIT__
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#endif
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#undef __WINDOWS__
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#undef _WIN32
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#undef __WIN32__
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#undef __NT__
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/* 32-bit Windows VxD compile environment */
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#elif defined(__vtoolsd_h_) || defined(VTOOLSD)
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#include <vtoolsc.h>
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#define __WIN32_VXD__
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#ifndef __32BIT__
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#define __32BIT__
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#endif
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#define _MAX_PATH 256
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#ifndef __WINDOWS32__
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#define __WINDOWS32__
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#endif
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/* 32-bit SMX compile environment */
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#elif defined(__SMX32__)
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#ifndef __MSDOS__
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#define __MSDOS__
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#endif
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#ifndef __32BIT__
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#define __32BIT__
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#endif
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#ifndef __REALDOS__
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#define __REALDOS__
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#endif
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/* 32-bit extended DOS compile environment */
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#elif defined(__MSDOS__) || defined(__MSDOS32__) || defined(__DOS__) || defined(__DPMI32__) || (defined(M_I86) && !defined(__SC386__)) || defined(TNT)
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#ifndef __MSDOS__
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#define __MSDOS__
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#endif
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#if defined(__MSDOS32__) || defined(__386__) || defined(__FLAT__) || defined(__NT__) || defined(__SC386__)
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#ifndef __MSDOS32__
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#define __MSDOS32__
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#endif
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#ifndef __32BIT__
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#define __32BIT__
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#endif
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#ifndef __REALDOS__
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#define __REALDOS__
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#endif
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/* 16-bit Windows compile environment */
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#elif (defined(_Windows) || defined(_WINDOWS)) && !defined(__DPMI16__)
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#ifndef __16BIT__
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#define __16BIT__
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#endif
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#ifndef __WINDOWS16__
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#define __WINDOWS16__
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#endif
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#ifndef __WINDOWS__
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#define __WINDOWS__
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#endif
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#ifndef __MSDOS__
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#define __MSDOS__
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#endif
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/* 16-bit DOS compile environment */
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#else
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#ifndef __16BIT__
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#define __16BIT__
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#endif
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#ifndef __MSDOS16__
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#define __MSDOS16__
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#endif
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#ifndef __REALDOS__
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#define __REALDOS__
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#endif
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#endif
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/* 32-bit Windows compile environment */
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#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__)
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#ifndef __32BIT__
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#define __32BIT__
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#endif
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#ifndef __WINDOWS32__
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#define __WINDOWS32__
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#endif
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#ifndef _WIN32
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#define _WIN32 /* Microsoft Win32 SDK headers use _WIN32 */
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#endif
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#ifndef WIN32
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#define WIN32 /* OpenGL headers use WIN32 */
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#endif
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#ifndef __WINDOWS__
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#define __WINDOWS__
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#endif
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/* 16-bit OS/2 compile environment */
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#elif defined(__OS2_16__)
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#ifndef __OS2__
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#define __OS2__
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#endif
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#ifndef __16BIT__
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#define __16BIT__
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#endif
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/* 32-bit OS/2 compile environment */
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#elif defined(__OS2__) || defined(__OS2_32__)
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#ifndef __OS2__
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#define __OS2__
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#endif
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#ifndef __OS2_32__
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#define __OS2_32__
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#endif
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#ifndef __32BIT__
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#define __32BIT__
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#endif
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/* 32-bit QNX compile environment */
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#elif defined(__QNX__)
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#ifndef __32BIT__
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#define __32BIT__
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#endif
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#ifndef __UNIX__
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#define __UNIX__
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#endif
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/* 32-bit Linux compile environment */
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#elif defined(__LINUX__) || defined(linux)
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#ifndef __LINUX__
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#define __LINUX__
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#endif
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#ifndef __32BIT__
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#define __32BIT__
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#endif
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#ifndef __UNIX__
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#define __UNIX__
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#endif
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/* 32-bit FreeBSD compile environment */
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#elif defined(__FREEBSD__)
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#ifndef __32BIT__
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#define __32BIT__
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#endif
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#ifndef __UNIX__
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#define __UNIX__
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#endif
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/* 32-bit BeOS compile environment */
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#elif defined(__BEOS__)
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#ifndef __32BIT__
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#define __32BIT__
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#endif
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#ifndef __UNIX__
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#define __UNIX__
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#endif
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#else
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#error This platform is not currently supported!
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#endif
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/* Determine the CPU type that we are compiling for */
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#if defined(__M_ALPHA) || defined(__ALPHA_) || defined(__ALPHA) || defined(__alpha)
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#ifndef __ALPHA__
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#define __ALPHA__
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#endif
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#elif defined(__M_PPC) || defined(__POWERC)
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#ifndef __PPC__
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#define __PPC__
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#endif
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#elif defined(__M_MRX000)
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#ifndef __MIPS__
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#define __MIPS__
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#endif
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#else
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#ifndef __INTEL__
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#define __INTEL__ /* Assume Intel if nothing found */
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#endif
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#endif
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/* We have the following defines to define the calling conventions for
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* publicly accesible functions:
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*
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* _PUBAPI - Compiler default calling conventions for all public 'C' functions
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* _ASMAPI - Calling conventions for all public assembler functions
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* _DLLAPI - Calling conventions for all DLL exported functions
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* _DLLVAR - Modifier to export/import globals in 32 bit DLL's
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* _EXPORT - Expands to _export when compiling a DLL
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* _VARAPI - Modifiers for variables; Watcom C++ mangles C++ globals
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*/
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#if defined(_MSC_VER) && defined(_WIN32) && !defined(__SC__)
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#define __PASCAL __stdcall
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#define __export
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#define __import
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#else
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#define __PASCAL __pascal
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#endif
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#ifdef __WATCOMC__
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#if (__WATCOMC__ >= 1050)
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#define _VARAPI __cdecl
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#else
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#define _VARAPI
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#endif
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#else
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#define _VARAPI
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#endif
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#if defined(__IBMC__) || defined(__IBMCPP__)
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#define PTR_DECL_IN_FRONT
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#endif
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#if defined(__WINDOWS__)
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#ifdef BUILD_DLL
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#define _DLLASM __export __cdecl
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#define _EXPORT __export
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#ifdef __WINDOWS32__
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#define _DLLAPI __export __PASCAL
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#define _DLLVAR __export
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#else
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#define _DLLAPI __export __far __pascal
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#define _DLLVAR
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#endif
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#else
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#define _DLLASM __cdecl
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#define _EXPORT
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#ifdef __WINDOWS32__
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#define _DLLAPI __PASCAL
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#define _DLLVAR __import
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#else
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#define _DLLAPI __far __pascal
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#define _DLLVAR
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#endif
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#endif
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#else
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#if !defined(__BEOS__)
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#define _EXPORT
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#endif
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#define _DLLAPI
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#define _DLLVAR
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#endif
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/* Define the calling conventions for all public functions. For simplicity
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* we define all public functions as __cdecl calling conventions, so that
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* they are the same across all compilers and runtime DLL's.
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*/
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#define _PUBAPI __cdecl
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#define _ASMAPI __cdecl
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/* Determine the syntax for declaring a function pointer with a
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* calling conventions override. Most compilers require the calling
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* convention to be declared in front of the '*', but others require
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* it to be declared after the '*'. We handle both in here depending
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* on what the compiler requires.
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*/
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#ifdef PTR_DECL_IN_FRONT
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#define _DLLAPIP * _DLLAPI
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#define _DLLASMP * _DLLASM
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#define _PUBAPIP * _PUBAPI
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#define _ASMAPIP * _ASMAPI
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#else
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#define _DLLAPIP _DLLAPI *
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#define _DLLASMP _DLLASM *
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#define _PUBAPIP _PUBAPI *
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#define _ASMAPIP _ASMAPI *
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#endif
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/* Useful macros */
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#define PRIVATE static
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#define PUBLIC
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/* This HAS to be 0L for 16-bit real mode code to work!!! */
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#ifndef NULL
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# define NULL 0L
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#endif
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#ifndef MAX
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# define MAX(a,b) ( ((a) > (b)) ? (a) : (b))
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#endif
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#ifndef MIN
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# define MIN(a,b) ( ((a) < (b)) ? (a) : (b))
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#endif
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#ifndef ABS
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# define ABS(a) ((a) >= 0 ? (a) : -(a))
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#endif
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#ifndef SIGN
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# define SIGN(a) ((a) > 0 ? 1 : -1)
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#endif
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/* General typedefs */
|
||
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#ifndef __GENDEFS
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#define __GENDEFS
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#if defined(__BEOS__)
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#include <SupportDefs.h>
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||
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#else
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#ifdef __LINUX__
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||
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#include <sys/types.h>
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||
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#ifdef __STRICT_ANSI__
|
||
|
|
typedef unsigned short ushort;
|
||
|
|
typedef unsigned long ulong;
|
||
|
|
typedef unsigned int uint;
|
||
|
|
#endif
|
||
|
|
#else
|
||
|
|
#if !(defined(__QNXNTO__) && defined(GENERAL_STRUCT))
|
||
|
|
typedef unsigned short ushort;
|
||
|
|
typedef unsigned long ulong;
|
||
|
|
#endif
|
||
|
|
typedef unsigned int uint;
|
||
|
|
#endif
|
||
|
|
typedef unsigned char uchar;
|
||
|
|
#endif
|
||
|
|
typedef int ibool; /* Integer boolean type */
|
||
|
|
#ifdef USE_BOOL /* Only for older code */
|
||
|
|
#ifndef __cplusplus
|
||
|
|
#define bool ibool /* Standard C */
|
||
|
|
#else
|
||
|
|
#ifndef __HAS_BOOL__
|
||
|
|
#define bool ibool /* Older C++ compilers */
|
||
|
|
#endif
|
||
|
|
#endif /* __cplusplus */
|
||
|
|
#endif /* USE_BOOL */
|
||
|
|
#endif /* __GENDEFS */
|
||
|
|
|
||
|
|
/* Boolean truth values */
|
||
|
|
|
||
|
|
#undef false
|
||
|
|
#undef true
|
||
|
|
#undef NO
|
||
|
|
#undef YES
|
||
|
|
#undef FALSE
|
||
|
|
#undef TRUE
|
||
|
|
#define false 0
|
||
|
|
#define true 1
|
||
|
|
#define NO 0
|
||
|
|
#define YES 1
|
||
|
|
#define FALSE 0
|
||
|
|
#define TRUE 1
|
||
|
|
|
||
|
|
/* Inline debugger interrupts for Watcom C++ and Borland C++ */
|
||
|
|
|
||
|
|
#ifdef __WATCOMC__
|
||
|
|
void DebugInt(void);
|
||
|
|
#pragma aux DebugInt = \
|
||
|
|
"int 3";
|
||
|
|
void DebugVxD(void);
|
||
|
|
#pragma aux DebugVxD = \
|
||
|
|
"int 1";
|
||
|
|
#elif defined(__BORLANDC__)
|
||
|
|
#define DebugInt() __emit__(0xCC)
|
||
|
|
#define DebugVxD() {__emit__(0xCD); __emit__(0x01);}
|
||
|
|
#elif defined(_MSC_VER)
|
||
|
|
#define DebugInt() _asm int 0x3
|
||
|
|
#define DebugVxD() _asm int 0x1
|
||
|
|
#else
|
||
|
|
#define DebugInt()
|
||
|
|
#define DebugVxD()
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*---------------------------------------------------------------------------
|
||
|
|
* Set of debugging macros used by the libraries. If the debug flag is
|
||
|
|
* set, they are turned on depending on the setting of the flag. User code
|
||
|
|
* can override the default functions called when a check fails, and the
|
||
|
|
* MGL does this so it can restore the system from graphics mode to display
|
||
|
|
* an error message. These functions also log information to the
|
||
|
|
* scitech.log file in the root directory of the hard drive when problems
|
||
|
|
* show up.
|
||
|
|
*
|
||
|
|
* If you set the value of CHECKED to be 2, it will also enable code to
|
||
|
|
* insert hard coded debugger interrupt into the source code at the line of
|
||
|
|
* code where the check fail. This is useful if you run the code under a
|
||
|
|
* debugger as it will break inside the debugger before exiting with a
|
||
|
|
* failure condition.
|
||
|
|
*
|
||
|
|
* Also for code compiled to run under Windows, we also call the
|
||
|
|
* OutputDebugString function to send the message to the system debugger
|
||
|
|
* such as Soft-ICE or WDEB386. Hence if you get any non-fatal warnings you
|
||
|
|
* will see those on the debugger terminal as well as in the log file.
|
||
|
|
*-------------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
extern void (*_CHK_fail)(int fatal,const char *msg,const char *cond,const char *file,int line);
|
||
|
|
void _CHK_defaultFail(int fatal,const char *msg,const char *cond,const char *file,int line);
|
||
|
|
|
||
|
|
#ifdef CHECKED
|
||
|
|
# define CHK(x) x
|
||
|
|
#if CHECKED > 1
|
||
|
|
# define CHECK(p) \
|
||
|
|
((p) ? (void)0 : DebugInt(), \
|
||
|
|
_CHK_fail(1,"Check failed: '%s', file %s, line %d\n", \
|
||
|
|
#p, __FILE__, __LINE__))
|
||
|
|
# define WARN(p) \
|
||
|
|
((p) ? (void)0 : DebugInt(), \
|
||
|
|
_CHK_fail(0,"Warning: '%s', file %s, line %d\n", \
|
||
|
|
#p, __FILE__, __LINE__))
|
||
|
|
#else
|
||
|
|
# define CHECK(p) \
|
||
|
|
((p) ? (void)0 : \
|
||
|
|
_CHK_fail(1,"Check failed: '%s', file %s, line %d\n", \
|
||
|
|
#p, __FILE__, __LINE__))
|
||
|
|
# define WARN(p) \
|
||
|
|
((p) ? (void)0 : \
|
||
|
|
_CHK_fail(0,"Warning: '%s', file %s, line %d\n", \
|
||
|
|
#p, __FILE__, __LINE__))
|
||
|
|
#endif
|
||
|
|
#else
|
||
|
|
# define CHK(x)
|
||
|
|
# define CHECK(p) ((void)0)
|
||
|
|
# define WARN(p) ((void)0)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* __SCITECH_H */
|