关于CSAPP中Datalab模块conditional的题解

[zhou-fuyi]

/*

• conditional - same as x ? y : z
• Example: conditional(2,4,5) = 4
• Legal ops: ! ~ & ^ | + << >>
• Max ops: 16
• Rating: 3 */ int conditional(int x, int y, int z) { int flag = !x + ~0; return (flag & y) | (~flag & y); } 这里是写错了吧，应该是： return (flag & y) | (~flag & y); --> return (flag & y) | (~flag & z);