#include<functional>usingnamespacestd;
usingnamespacestd::placeholders;
class A
{
intoperator()( int i, int j ){ return i - j; }
};
A a;
auto aBind = bind( &A::operator(), ref(a), _2, _1 );
这个没有
#include<functional>usingnamespacestd;
usingnamespacestd::placeholders;
class A
{
intoperator()( int i, int j ){ return i - j; }
intoperator()( int i ){ return -i; }
};
A a;
auto aBind = bind( &A::operator(), ref(a), _2, _1 );
I have tried playing around with the syntax to try and explicitly resolve which function I want in the code that does not work without luck so far. How do I write the bind line in order to choose the call that takes the two integer arguments?
推荐答案
你需要一个强制转换来消除重载函数的歧义:
You need a cast to disambiguate the overloaded function:
