1 /* $Id: error.h,v 1.10 2003-11-26 12:26:28 btb Exp $ */
3 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
4 SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
5 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
6 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
7 IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
8 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
9 FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
10 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
11 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
12 COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
17 * Header for error handling/printing/exiting code
20 * Revision 1.12 1994/06/17 15:22:46 matt
21 * Added pragma for Error() for when NDEBUG
23 * Revision 1.11 1994/03/07 13:22:14 matt
24 * Since the Error() function has 'aborts' set in pragma, we do a jmp
25 * to the function rather than call.
27 * Revision 1.10 1994/02/17 12:37:15 matt
28 * Combined two pragma's for Error(), since second superseded the first
30 * Revision 1.9 1994/02/10 18:02:53 matt
31 * Changed 'if DEBUG_ON' to 'ifndef NDEBUG'
33 * Revision 1.8 1994/02/09 15:18:29 matt
34 * Added pragma saying that Error() never returns
36 * Revision 1.7 1993/10/19 12:57:53 matt
37 * If DEBUG_ON not defined, define it to be 1
39 * Revision 1.6 1993/10/15 21:40:39 matt
40 * Made error functions generate int3's if debugging on
42 * Revision 1.5 1993/10/14 15:29:22 matt
43 * Added new function clear_warn_func()
45 * Revision 1.4 1993/10/08 16:16:47 matt
46 * Made Assert() call function _Assert(), rather to do 'if...' inline.
48 * Revision 1.3 1993/09/29 11:39:07 matt
49 * Added Assert() macro, like the system one, but calls Error()
51 * Revision 1.2 1993/09/27 11:47:03 matt
52 * Added function set_warn_func()
54 * Revision 1.1 1993/09/23 20:17:46 matt
66 #define __noreturn __attribute__ ((noreturn))
67 #define __format __attribute__ ((format (printf, 1, 2)))
73 int error_init(void (*func)(char *), char *fmt,...); //init error system, set default message, returns 0=ok
74 void set_exit_message(char *fmt,...); //specify message to print at exit
75 void Warning(char *fmt,...); //print out warning message to user
76 void set_warn_func(void (*f)(char *s));//specifies the function to call with warning messages
77 void clear_warn_func(void (*f)(char *s));//say this function no longer valid
78 void _Assert(int expr,char *expr_text,char *filename,int linenum); //assert func
79 void Error(char *fmt,...) __noreturn __format; //exit with error code=1, print message
80 void Assert(int expr);
82 #ifndef NDEBUG //macros for debugging
85 //# define Int3() Error("int 3 %s:%i\n",__FILE__,__LINE__);
86 //# define Int3() {volatile int a=0,b=1/a;}
87 # define Int3() ((void)0)
96 static inline void _Int3()
98 if (FindArg("-debug")) {
100 SDL_WM_GrabInput(SDL_GRAB_OFF);
105 #define Int3() _Int3()
107 #elif defined __WATCOMC__
108 void Int3(void); //generate int3
109 #pragma aux Int3 = "int 3h";
111 #elif defined _MSC_VER
112 static __inline void _Int3()
116 #define Int3() _Int3()
119 #error Unknown Compiler!
124 #define Assert(expr) ((expr)?(void)0:(void)_Assert(0,#expr,__FILE__,__LINE__))
127 //#define Error(format, args...) ({ /*Int3();*/ Error(format , ## args); })
128 #elif defined __WATCOMC__
129 //make error do int3, then call func
130 #pragma aux Error aborts = \
134 //#pragma aux Error aborts;
136 // DPH: I'm not going to bother... it's not needed... :-)
140 //make assert do int3 (if expr false), then call func
141 #pragma aux _Assert parm [eax] [edx] [ebx] [ecx] = \
149 #else //macros for real game
152 #pragma aux Error aborts;
154 //Changed Assert and Int3 because I couldn't get the macros to compile -KRB
155 #define Assert(__ignore) ((void)0)
156 //void Assert(int expr);
157 #define Int3() ((void)0)
161 #endif /* _ERROR_H */