Function warn

mysys/safemalloc.c:301–320

}

static void warn(const char *format,...)
{
  va_list args;
  DBUG_PRINT("error", ("%s", format));
  va_start(args,format);
  vfprintf(stderr, format, args);
  fflush(stderr);
  va_end(args);

#ifdef HAVE_BACKTRACE
  {
    void *frame[SF_REMEMBER_FRAMES + SF_FRAMES_SKIP];
    int frames= backtrace(frame, array_elements(frame));
    fprintf(stderr, " at ");
    if (frames < SF_REMEMBER_FRAMES + SF_FRAMES_SKIP)
      frame[frames]= 0;
    print_stack(frame + SF_FRAMES_SKIP);
  }
#endif
}

static int bad_ptr(const char *where, void *ptr)
{