C++标准有规定无符号整型溢出要变成0吗如果一直把一个无符号整型加下去, 直到0xFFFFFFFF, 会不会有某些编译器不把它变回0而一直停在0xFFFFFFFF
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arithmetic modulo 2^n where n is the number of bits in the value
representation of that particular size of integerFootnote: This implies that unsigned arithmetic does not overflow
because a result that cannot be represented by the resulting unsigned
integer type is reduced modulo the number that is one greater than the
largest value that can be represented by the resulting unsigned
integer
type.