05/12/27 00:03:34
>>572
自分ならこんな感じかな？
struct A_eq_id:std::binary_function<A,int,bool>{
bool operator()(const A&a,int n)const{return a.id == n;}
};
std::vector<A> vect;
std::vector<A>::iterator itr = find_if(vect.begin(),vect.end(),bind2nd(A_eq_id(),2));