在c ++ sans cmath库中的GCD函数 [英] GCD function in c++ sans cmath library

问题描述

我在写一个混合数字类，需要一个快速，简单的最大公约数函数。任何人都可以给我的代码或链接到代码？

I'm writing a mixed numeral class and need a quick and easy 'greatest common divisor' function. Can anyone give me the code or a link to the code?

推荐答案

我很想投票关闭 - 似乎很难相信一个实现将很难找到，

I'm tempted to vote to close -- it seems difficult to believe that an implementation would be hard to find, but who knows for sure.

unsigned GCD(unsigned u, unsigned v) {
    while ( v != 0) {
        unsigned r = u % v;
        u = v;
        v = r;
    }
    return u;
}

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