In C language code, if I have a bunch of variables that will be used only for logical operations, what is the data type that will yield the fastest execution time?
Also, does it depend if I'm using an ARM or Intel processor, 32-bit or 64-bit system?
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8premature micro-optimisation? – Mitch Wheat Feb 17 '13 at 03:09
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1Make a typedef, then benchmark. Best way to know. – nneonneo Feb 17 '13 at 03:10
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http://stackoverflow.com/a/1921557 – Dinah Feb 17 '13 at 03:10
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Just use `_Bool` and if you find that too slow then that's when you should consider optimisations. – dreamlax Feb 17 '13 at 03:12
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Where did you get the impression that C has "execution time"? This is a concept that comes from implementations of the C language, not from the C language. Your question is a bit like "What is the fastest accent, tone and/or volume to speak English in?". – autistic Feb 17 '13 at 03:58
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If the compiler allows, include <stdbool.h>, use bool, and trust the compiler/RTL vendor to do the right thing. Otherwise use int.
Seva Alekseyev
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