使用std :: min时出错，“没有匹配的函数调用"min(<括号括起来的初始化程序列表>)"" [英] Error when using std::min "no matching function for call to ‘min(<brace-enclosed initializer list>)’"

问题描述

在 https://stackoverflow.com/a/9424211/3368959 之后，我尝试比较三个数字:

Following https://stackoverflow.com/a/9424211/3368959 I am trying to compare three numbers:

#include <iostream>

int main() {

    std::cout << std::min({2,5,1}) << std::endl;
    return 0;
}

但是编译器给我错误:

error: no matching function for call to ‘min(<brace-enclosed initializer list>)’

但是，代码在使用时可以正常编译

However, the code compiles just fine when using

std::min(std::min(2,5),1)

但是第一种方法应该与c ++ 11标准一起使用.我可能做错了什么?

But the first way should work with the c++11 standard. What could I be doing wrong?

推荐答案

为@BoBTFish

As @BoBTFish suggested:

要使用template <class T> T min (initializer_list<T> il)，需要包含<algorithm>，如所述此处.

In order to use template <class T> T min (initializer_list<T> il) one needs to include <algorithm> as is mentioned here.

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