tinch_pp match_adaptor to avoid bind() blah blah blah

match_adaptor.cpp

#include <cassert>
#include <type_traits>
#include <memory>
#include <iostream>

template<class>   struct is_smart_pointer : std::false_type {};
template<class T> struct is_smart_pointer<std::shared_ptr<T>> : std::true_type {};
template<class T> struct is_smart_pointer<std::unique_ptr<T>> : std::true_type {};

template<class T>
inline typename std::enable_if<is_smart_pointer<T>::value, bool>::type
match_adaptor(T& /*x*/) {
	std::cout << "is_smart_pointer\n";
	return true;
}

template<class T>
inline typename std::enable_if<!is_smart_pointer<T>::value, bool>::type
match_adaptor(T& /*x*/) {
	std::cout << "!is_smart_pointer\n";
	return false;
}

signed main() {
	int i;
	std::shared_ptr<int> sp;
	assert(!match_adaptor(i));
	assert(match_adaptor(sp));

	return 0;
}