负数赋值给unsigned int有什么结果?
#include <iostream>#include <stdio.h>int main() { unsigned int p = -1; printf("%d\n",p); std::cout << p <<std::endl; return 0;}ubuntu下编译执行
-1
4294967295
c++里面,负数会被解释为位模式,-1的位模式为:
0xFFFF
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[1]