什么是C代码的输出？我需要解释

Question

int main() 
{
    char boolean[][6]={"TRUE","FALSE"};
    printf("%s",boolean[(unsigned int)-1 == ~0]);
}

执行后,我认为它为FALSE.是什么原因？

Answer 1

因为

~0 == 0xffffffff  (the ~ operator inverts all bits)

和

(unsigned int)-1 == 0xffffffff

如

(0xffffffff == 0xffffffff) == 1

你的表达归结为

boolean[1]

结果

"FALSE"