_must_check [LWN.net]

_must_check

Posted Dec 2, 2006 22:02 UTC (Sat) by jzbiciak (✭ supporter ✭, #5246)
In reply to: _must_check by ldo
Parent article: KHB: Automating bug hunting

(void)strcpy(buf, "That's just plain silly.\n"); for (i = 0; i < 100; (void)i++) (void)printf("%s", buf); (void)fflush(stdout);

I think if you required (void) casts on all ignored return values, you'd quickly find yourself adding them blindly, and/or probably going (void)just this (void)side of (void)insane. (void)(void)(VOID)

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_must_check

Posted Dec 2, 2006 22:03 UTC (Sat) by jzbiciak (✭ supporter ✭, #5246) [Link]

Oh, and imagine requiring that for C++. Recall that operator= returns the assigned value.... (void)a = b; Ok, maybe that's a bit over-the-top, but really, where do you draw the line?