modulo vs bitwise mask, C++ (clang)

modulo vs bitwise mask

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Compilation time: 0.62 sec, absolute running time: 0.14 sec, cpu time: 0 sec, memory peak: 3 Mb, absolute service time: 0,77 sec

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0 & 0xFF = 0 and 0 % 256 = 0
1 & 0xFF = 1 and 1 % 256 = 1
255 & 0xFF = 255 and 255 % 256 = 255
256 & 0xFF = 0 and 256 % 256 = 0
-1 & 0xFF = 255 and -1 % 256 = -1
-255 & 0xFF = 1 and -255 % 256 = -255
-256 & 0xFF = 0 and -256 % 256 = 0

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