git.sur5r.net Git - cc65/blob - src/common/check.c

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                  check.c                                  */
   4 /*                                                                           */
   5 /*                            Assert like macros                             */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 1998     Ullrich von Bassewitz                                        */
  10 /*              Wacholderweg 14                                              */
  11 /*              D-70597 Stuttgart                                            */
  12 /* EMail:       uz@musoftware.de                                             */
  13 /*                                                                           */
  14 /*                                                                           */
  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.                                    */
  18 /*                                                                           */
  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:                            */
  22 /*                                                                           */
  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              */
  30 /*    distribution.                                                          */
  31 /*                                                                           */
  32 /*****************************************************************************/
  33
  34
  35
  36 #include <stdlib.h>
  37
  38 #include "abend.h"
  39 #include "check.h"
  40
  41
  42
  43 /*****************************************************************************/
  44 /*                                   Data                                    */
  45 /*****************************************************************************/
  46
  47
  48
  49 /* Predefined messages */
  50 const char* MsgInternalError    = "Internal error: ";
  51 const char* MsgPrecondition     = "Precondition violated: ";
  52 const char* MsgCheckFailed      = "Check failed: ";
  53 const char* MsgProgramAborted   = "Program aborted: ";
  54
  55
  56
  57 static void DefaultCheckFailed (const char* msg, const char* cond,
  58                                 int code, const char* file, unsigned line)
  59                                 attribute ((noreturn));
  60
  61 void (*CheckFailed) (const char* Msg, const char* Cond, int Code,
  62                      const char* File, unsigned Line) attribute ((noreturn))
  63                 = DefaultCheckFailed;
  64 /* Function pointer that is called from check if the condition code is true. */
  65
  66
  67
  68 /*****************************************************************************/
  69 /*                                   Code                                    */
  70 /*****************************************************************************/
  71
  72
  73
  74 static void DefaultCheckFailed (const char* Msg, const char* Cond,
  75                                 int Code, const char* File, unsigned Line)
  76 {
  77     /* Log the error */
  78     if (Code) {
  79         AbEnd ("%s%s (= %d), file `%s', line %u", Msg, Cond, Code, File, Line);
  80     } else {
  81         AbEnd ("%s%s, file `%s', line %u", Msg, Cond, File, Line);
  82     }
  83 }
  84
  85
  86
  87 void Check (const char* Msg, const char* Cond, int Code,
  88             const char* File, unsigned Line)
  89 /* This function is called from all check macros (see below). It checks,
  90  * wether the given Code is true (!= 0). If so, it calls the CheckFailed
  91  * vector with the given strings. If not, it simply returns.
  92  */
  93 {
  94     if (Code != 0) {
  95         CheckFailed (Msg, Cond, Code, File, Line);
  96     }
  97 }
  98
  99
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