京都浴衣购买:implicit declaration of function `int hypot(...)\'

来源：百度文库编辑：神马品牌网时间：2024/05/02 06:32:23

double radius; center_x,center_y,current_x,current_y都是double类型的
出错的为下面这条语句：
radius SET_TO hypot((center_x - current_x),(center_y - current_y));

implicit declaration of function `int hypot(...)' 这句是什么意思了，如何解决？
？？

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