C语言有符号加减溢出

sizeof(short int ) = 2;

测试用例

#include <stdio.h>
 
int main()
{
    short int a = -32768;
    short int b = 0x8000;
    short int c = 0xffff;
    short int d = 0x8001;
    printf("%d, %d, %d, %d\n", a, b, c, d);
    a -= 1;
    b -= 1;
    c -= 1;
    d -= 1;
    printf("%d, %d, %d, %d\n", a, b, c, d);
 
    return 0;
}

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C语言有符号加减溢出

原文：http://blog.csdn.net/youxin2012/article/details/36425791