Re: [patch 1/1] consolidate TRUE and FALSE

Xavier Bestel
2006-03-19T11:41:37Z

Le 18/3/2006, "Jan Engelhardt" <jengelh@linux01.gwdg.de> a écrit:

>>
>>Isn't there a runtime cost converting all "non-false" values to a unique "true" (i.e. converting non-zero values to one) ?
>>
>
>Somewhat. The answer is "yes, but depends on usage". If you just
>write
>
> _Bool x = filthy_action();
> if(x)
>
>Then the compiler is smart enough to optimize 'x' away if it is not used
>somewhere else, therefore we do not pay a price for converting the return
>type of filthy_action (=int) to a _Bool.

Actually I find this behavior very good

Xavier