std :: function成员函数 [英] std::function to member function

问题描述

#include <functional>

struct A
{
    int func(int x, int y)
    {
        return x+y;
    }
};

int main()
{

    typedef std::function<int(int, int) > Funcp;
    A a;
    //Funcp func = std:::bind(&A::func, &a);
    Funcp func = std::bind(&A::func, a, std::placeholders::_1);


    return 0;
}

我在上述两个绑定函数中收到错误：

I am getting errors in both of the above bind functions:

 error C2825: '_Fty': must be a class or namespace when followed by '::'

语法错误在哪里？我使用visual studio 2010

Where is the syntax error? I am using visual studio 2010

推荐答案

Funcp func = std :: bind（& A :: func，& a，std :: placeholders :: _ 1，std :: placeholders :: _ 2）;


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