fork download

copy

#include <type_traits>
#include <vector>
#include <utility>
#include <deque>
#include <string>
#include "iostream"
#include <algorithm>
#include <map>
#include <iostream>
using namespace std;
template<typename A, typename B>
int f(typename map<A, B>::iterator it) {
    return 0;
}
int main() {
	map<int, int> m;
	cout << f(m.begin());
}

prog.cpp: In function ‘int main()’:
prog.cpp:17:21: error: no matching function for call to ‘f(std::map<int, int>::iterator)’
prog.cpp:17:21: note: candidate is:
prog.cpp:12:5: note: template<class A, class B> int f(typename std::map<A, B>::iterator)
prog.cpp:12:5: note:   template argument deduction/substitution failed:
prog.cpp:17:21: note:   couldn't deduce template parameter ‘A’

Standard output is empty