gcc/assert.h

   1 /* Allow this file to be included multiple times
   2    with different settings of NDEBUG.  */
   3 #undef assert
   4 #undef __assert
   5
   6 #ifdef NDEBUG
   7 #define assert(ignore) ((void) 0)
   8 #else
   9
  10 #ifndef __GNUC__
  11
  12 #define assert(expression)  \
  13   ((void) ((expression) ? 0 : __assert (expression, __FILE__, __LINE__)))
  14
  15 #define __assert(expression, file, lineno)  \
  16   (printf ("%s:%u: failed assertion\n", file, lineno),  \
  17    abort (), 0)
  18
  19 #else
  20
  21 #if defined(__STDC__) || defined (__cplusplus)
  22
  23 /* Defined in libgcc.a */
  24 #ifdef __cplusplus
  25 extern "C" {
  26 extern void __eprintf (const char *, const char *, unsigned, const char *)
  27     __attribute__ ((noreturn));
  28 }
  29 #else
  30 extern void __eprintf (const char *, const char *, unsigned, const char *)
  31     __attribute__ ((noreturn));
  32 #endif
  33
  34 #define assert(expression)  \
  35   ((void) ((expression) ? 0 : __assert (#expression, __FILE__, __LINE__)))
  36
  37 #define __assert(expression, file, line)  \
  38   (__eprintf ("%s:%u: failed assertion `%s'\n",         \
  39               file, line, expression), 0)
  40
  41 #else /* no __STDC__ and not C++; i.e. -traditional.  */
  42
  43 extern void __eprintf () __attribute__ ((noreturn)); /* Defined in libgcc.a */
  44
  45 #define assert(expression)  \
  46   ((void) ((expression) ? 0 : __assert (expression, __FILE__, __LINE__)))
  47
  48 #define __assert(expression, file, lineno)  \
  49   (__eprintf ("%s:%u: failed assertion `%s'\n",         \
  50               file, lineno, "expression"), 0)
  51
  52 #endif /* no __STDC__ and not C++; i.e. -traditional.  */
  53 #endif /* no __GNU__; i.e., /bin/cc.  */
  54 #endif