INT_MAX_MIN
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// Author: poseidonyu <poseidonyu@gmail.com>#include <stdio.h>#define INT_MAX ((int)(~0U>>1))#define INT_MIN (-INT_MAX - 1)int main(){ printf("INT_MAX = %d, INT_MIN = %d\n\n", INT_MAX, INT_MIN); printf("~0U = %x, (~0U>>1) = %x\n", ~0U, (~0U>>1)); return 0;}/*INT_MAX = 2147483647, INT_MIN = -2147483648~0U = ffffffff, (~0U>>1) = 7fffffff*/转自：http://blogold.chinaunix.net/u3/110937/showart_2161956.html
