CheckBit，SetBit设置二进制位的方法使用

inline int CheckBit(char c, int siOffSet)
{
    char tmpc = 0x01 << (siOffSet-1);
    return (c & tmpc);
}

inline char SetBit(char c, int siOffSet)
{
    char tmpc = 0x01 << (siOffSet-1);
    c |= tmpc;
    return c;
}

inline int CheckIntBit(int i, int siOffSet)
{
    int tmpc = 0x00000001 << (siOffSet-1);
    return (i & tmpc);
}

inline int SetIntBit(int i, int siOffSet)
{
    int tmpc = 0x00000001 << (siOffSet-1);
    i |= tmpc;
    return i;
}

inline int Count(int i) //from <编程之美>
{
    int siNum = 0;
    while(i)
    {
        i &= (i - 1);
        siNum++;
    }
    return siNum;
}

对于long或者int要用CheckIntBit