翻转无符号整数的比特位

给定一个无符号整数，要求将该整数的比特位按照高低位翻转。

typedef unsigned int uint;uint swapbits(uint x, uint i, uint j){    uint low = (x >> i)&1;    uint high = (x >> j)&1;    if (low != high)    {        x ^= (1U << j) | (1U << i);    }    return x;}uint revert(uint x){    unsigned n = sizeof(x)*8;    for (int i = 0; i < n/2; i++)    {        x = swapbits(x, i, n-1-i);    }    return x;}