Exception Handling In ANSI C

Listing 2

void *xalloc(size_t size)
{   void *p;
   assert(size);
   BEGIN_TRY { /* get some RAM */
      if (!(p = malloc(size))) {
         assert(errno == ENOMEM);
         FAIL(X_ERRNO);
      }
   } FAIL_TRY { /* no RAM, so cram */
      if (X_Error == X_ERRNO)
         if (errno == ENOMEM)
            if (CompactMem(size))
                RETRY;
   } END_TRY;
   assert(p);
   return p;
 }

/* End of File */