ASSERT(3)                       Allegro manual                       ASSERT(3)



NAME
       ASSERT - Debugging helper macro to assert. Allegro game programming
       library.

SYNOPSIS
       #include <allegro.h>


       void ASSERT(condition);

DESCRIPTION
       Debugging helper macro. Normally compiles away to nothing, but if you
       defined the preprocessor symbol DEBUGMODE before including Allegro
       headers, it will check the supplied condition and call al_assert() if
       it fails, whose default action is to stop the program and report the
       assert. You can use this macro even when Allegro has not been
       initialised. Example:

          #define DEBUGMODE
          #include
          ...
          void my_blitter(BITMAP *source, int flags)
          {
             int some_variables;
             ASSERT(source != NULL);
             ASSERT(flags & GAME_RUNNING);
             ...
          }


SEE ALSO
       al_assert(3), TRACE(3), register_assert_handler(3), expackf(3)



Allegro                          version 4.2.3                       ASSERT(3)
