T* operator ++(T* x); T* operator --(T* x);Paragraph 21 The operators produce the same results as x+1 and x-1, respectively (§25.5.6). 2 In other words, for a pointer variable of type T*, the ++ operator adds sizeof(T) to the address contained in the variable, and the --operator subtracts sizeof(T) from the address contained in the variable. Paragraph 31 If a pointer increment or decrement operation overflows the domain of the pointer type, the result is implementation-defined, but no exceptions are produced.
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