I remember reading somewhere that it is better to use integers as loop counter variables rather than char or short. If yes, why? Does it provide any optimization benefits?
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I remember reading somewhere that it is better to use integers as loop counter variables rather than char or short. If yes, why? Does it provide any optimization benefits?
Generally, the compiler will make
intto be a good size for putting into one of your CPU’s general purpose registers. That generally leads to fast access.Of course there’s no guarantee of anything. The compiler is free to do a lot of things, including, I would guess, promote some of your code that uses
charto some larger type. So the difference might not even matter.Really, for the answer that’s true for your compiler, you should look at the assembly it outputs.