162 lines
4.4 KiB
C
162 lines
4.4 KiB
C
/* $Id: error.h,v 1.10 2003-11-26 12:26:28 btb Exp $ */
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/*
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THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
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END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
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ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
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IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
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SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
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FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
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CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
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AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
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COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
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*/
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/*
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*
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* Header for error handling/printing/exiting code
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*
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* Old Log:
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* Revision 1.12 1994/06/17 15:22:46 matt
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* Added pragma for Error() for when NDEBUG
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*
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* Revision 1.11 1994/03/07 13:22:14 matt
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* Since the Error() function has 'aborts' set in pragma, we do a jmp
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* to the function rather than call.
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*
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* Revision 1.10 1994/02/17 12:37:15 matt
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* Combined two pragma's for Error(), since second superseded the first
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*
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* Revision 1.9 1994/02/10 18:02:53 matt
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* Changed 'if DEBUG_ON' to 'ifndef NDEBUG'
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*
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* Revision 1.8 1994/02/09 15:18:29 matt
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* Added pragma saying that Error() never returns
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*
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* Revision 1.7 1993/10/19 12:57:53 matt
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* If DEBUG_ON not defined, define it to be 1
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*
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* Revision 1.6 1993/10/15 21:40:39 matt
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* Made error functions generate int3's if debugging on
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*
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* Revision 1.5 1993/10/14 15:29:22 matt
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* Added new function clear_warn_func()
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*
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* Revision 1.4 1993/10/08 16:16:47 matt
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* Made Assert() call function _Assert(), rather to do 'if...' inline.
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*
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* Revision 1.3 1993/09/29 11:39:07 matt
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* Added Assert() macro, like the system one, but calls Error()
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*
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* Revision 1.2 1993/09/27 11:47:03 matt
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* Added function set_warn_func()
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*
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* Revision 1.1 1993/09/23 20:17:46 matt
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* Initial revision
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*
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*
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*/
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#ifndef _ERROR_H
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#define _ERROR_H
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#include <stdio.h>
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#ifdef __GNUC__
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#define __noreturn __attribute__ ((noreturn))
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#define __format __attribute__ ((format (printf, 1, 2)))
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#else
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#define __noreturn
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#define __format
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#endif
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int error_init(void (*func)(char *), char *fmt,...); //init error system, set default message, returns 0=ok
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void set_exit_message(char *fmt,...); //specify message to print at exit
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void Warning(char *fmt,...); //print out warning message to user
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void set_warn_func(void (*f)(char *s));//specifies the function to call with warning messages
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void clear_warn_func(void (*f)(char *s));//say this function no longer valid
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void _Assert(int expr,char *expr_text,char *filename,int linenum); //assert func
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void Error(char *fmt,...) __noreturn __format; //exit with error code=1, print message
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void Assert(int expr);
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void Int3();
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#ifndef NDEBUG //macros for debugging
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#ifdef NO_ASM
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//# define Int3() Error("int 3 %s:%i\n",__FILE__,__LINE__);
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//# define Int3() {volatile int a=0,b=1/a;}
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# define Int3() ((void)0)
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#else // NO_ASM
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#ifdef __GNUC__
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#ifdef SDL_INPUT
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#include <SDL.h>
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#endif
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#include "args.h"
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static inline void _Int3()
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{
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if (FindArg("-debug")) {
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#ifdef SDL_INPUT
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SDL_WM_GrabInput(SDL_GRAB_OFF);
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#endif
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asm("int $3");
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}
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}
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#define Int3() _Int3()
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#elif defined __WATCOMC__
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void Int3(void); //generate int3
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#pragma aux Int3 = "int 3h";
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#elif defined _MSC_VER
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static __inline void _Int3()
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{
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__asm { int 3 }
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}
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#define Int3() _Int3()
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#else
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#error Unknown Compiler!
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#endif
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#endif // NO_ASM
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#define Assert(expr) ((expr)?(void)0:(void)_Assert(0,#expr,__FILE__,__LINE__))
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#ifdef __GNUC__
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//#define Error(format, args...) ({ /*Int3();*/ Error(format , ## args); })
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#elif defined __WATCOMC__
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//make error do int3, then call func
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#pragma aux Error aborts = \
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"int 3" \
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"jmp Error";
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//#pragma aux Error aborts;
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#else
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// DPH: I'm not going to bother... it's not needed... :-)
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#endif
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#ifdef __WATCOMC__
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//make assert do int3 (if expr false), then call func
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#pragma aux _Assert parm [eax] [edx] [ebx] [ecx] = \
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"test eax,eax" \
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"jnz no_int3" \
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"int 3" \
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"no_int3:" \
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"call _Assert";
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#endif
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#else //macros for real game
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#ifdef __WATCOMC__
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#pragma aux Error aborts;
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#endif
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//Changed Assert and Int3 because I couldn't get the macros to compile -KRB
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#define Assert(__ignore) ((void)0)
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//void Assert(int expr);
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#define Int3() ((void)0)
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//void Int3();
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#endif
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#endif /* _ERROR_H */
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