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Overflow
From http://en.wikipedia.org/wiki/Arithmetic_overflow:
the condition that occurs when a calculation produces a result that is greater in magnitude than that which a given register or storage location can store or represent.
So, for instance:
uint32_t x = 1UL << 31;x *= 2; // Overflow!Note that as @R mentions in a comment below, the C standard suggests:
A computation involving unsigned operands can never overflow, because a result that cannot be represented by the resulting unsigned integer type is reduced modulo the number ...
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