gistfile1.cpp

#include <iostream>
#include <type_traits>


template<typename...T> struct foo{};

template<template<typename...> class Template, typename Type>
struct is_instantiation_of: std::false_type {};

template<template<typename...> class Template, typename...Arguments>
struct is_instantiation_of<Template, Template<Arguments...>>: std::true_type {};


int main(){
	std::cout << is_instantiation_of<foo, int>::value <<'\n'
		<< is_instantiation_of<foo, foo<int>>::value << '\n'
		<< is_instantiation_of<foo, foo<int, float, char>>::value << '\n';
}