Messages in this thread | | | Subject | Re: [patch 1/1] consolidate TRUE and FALSE | From | "Xavier Bestel" <> | Date | Sun, 19 Mar 2006 12:41:49 +0100 |
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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
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