While I understand that it's mostly a question of aesthetics, I don't like this also because it might break the expected semantics of continue/break in such a l

While I understand that it's mostly a question of aesthetics, I don't like this also because it might break the expected semantics of continue/break in such a loop. When I iterate over things more complex than a single variable where the conditions in a for() would become ugly, I tend to put the domain-specific "increment" into a small static function: static int next_pixel(*x, *y, width, height) { (*x)++; ... if (last pixel...) return 0; return 1; } /* later on... */ do { /* do something with coordinates x, y */ } while (next_pixel(&x, &y, WIDTH, HEIGHT)); This is, of course, not only restricted to 2D arrays, but could cover walking of a tree or a filesystem...