c语言任意两个整数相减_判断两个int类型的整数相加，相减是否溢出的C语言代码...

#include #include int tadd_ok(int x, int y); int tsub_ok(int x, int y); int main() { printf("%d\n", tadd_ok(INT_MIN, 0)); printf("%d\n", tadd_ok(INT_MIN, -1)); printf("%d\n", tadd_ok(INT_MAX, 0)); printf("%d\n", tadd_ok(INT_MAX, 1)); printf("%d\n", tsub_ok(INT_MIN, 0)); printf("%d\n", tsub_ok(INT_MIN+3, 5)); printf("%d\n", tsub_ok(0, INT_MIN)); printf("%d\n", tsub_ok(1, INT_MIN)); return 0; } int tadd_ok(int x, int y)    //判断两个数相加是否溢出，溢出就返回0 { int sum = x + y; if(x > 0 && y > 0) { if(sum < 0)   //正溢出 return 0; else return 1; } else if(x < 0 && y < 0) { if(sum >= 0)   //负溢出 return 0; else return 1; } else return 1; } int tsub_ok(int x, int y)   //判断两个数相减是否溢出，溢出就返回0 { int diff = x - y; if(y != INT_MIN) { if(x > 0 && y < 0) { if(diff < 0) return 0; else return 1; } else if(x < 0 && y > 0) { if(diff > 0)   //负溢出 return 0; else return 1; } else return 1; } else { if(x > 0)  //正溢出 return 0; else return 1; } }