1 /*****************************************************************************/
5 /* Assert like macros */
9 /* (C) 1998-2001 Ullrich von Bassewitz */
11 /* D-70597 Stuttgart */
12 /* EMail: uz@cc65.org */
15 /* This software is provided 'as-is', without any expressed or implied */
16 /* warranty. In no event will the authors be held liable for any damages */
17 /* arising from the use of this software. */
19 /* Permission is granted to anyone to use this software for any purpose, */
20 /* including commercial applications, and to alter it and redistribute it */
21 /* freely, subject to the following restrictions: */
23 /* 1. The origin of this software must not be misrepresented; you must not */
24 /* claim that you wrote the original software. If you use this software */
25 /* in a product, an acknowledgment in the product documentation would be */
26 /* appreciated but is not required. */
27 /* 2. Altered source versions must be plainly marked as such, and must not */
28 /* be misrepresented as being the original software. */
29 /* 3. This notice may not be removed or altered from any source */
32 /*****************************************************************************/
45 /*****************************************************************************/
47 /*****************************************************************************/
51 extern const char* MsgInternalError; /* "Internal error: " */
52 extern const char* MsgPrecondition; /* "Precondition violated: " */
53 extern const char* MsgCheckFailed; /* "Check failed: " */
54 extern const char* MsgProgramAborted; /* "Program aborted: " */
58 extern void (*CheckFailed) (const char* Msg, const char* Cond,
59 const char* File, unsigned Line)
60 attribute ((noreturn));
61 /* Function pointer that is called from check if the condition code is true. */
65 /*****************************************************************************/
67 /*****************************************************************************/
71 #define FAIL(s) CheckFailed (MsgInternalError, s, __FILE__, __LINE__)
72 /* Fail macro. Is used if something evil happens, calls checkfailed directly. */
74 #define ABORT(s) CheckFailed (MsgProgramAborted, s, __FILE__, __LINE__)
75 /* Use this one instead of FAIL if there is no internal program error but an
76 * error condition that is caused by the user or operating system (FAIL and
77 * ABORT are essentially the same but the message differs).
80 #define PRECONDITION(c) \
81 ((c)? 0 : (CheckFailed (MsgPrecondition, #c, __FILE__, __LINE__), 0))
84 ((c)? 0 : (CheckFailed (MsgCheckFailed, #c, __FILE__, __LINE__), 0))