Files
callable_traits/example/args/args.cpp
2016-04-01 19:35:40 -05:00

59 lines
1.4 KiB
C++

/*!
Copyright (c) 2016 Barrett Adair
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
*/
#include <type_traits>
#include <memory>
#include <callable_traits/callable_traits.hpp>
namespace ct = callable_traits;
//all callable types in this example use these parameter types
using expect = std::tuple<int, float&, const char*>;
template<typename T>
void test(){
//this example shows how callable_traits::args
//bevaves consistently for many different types
using args = ct::args<T>;
static_assert(std::is_same<expect, args>{}, "");
}
int main() {
auto lamda = [](int, float&, const char*){};
using lam = decltype(lamda);
test<lam>();
test<lam*>();
test<lam&>();
test<lam&&>();
test<lam const &>();
struct foo;
using pmf = void(foo::*)(int, float&, const char*);
test<pmf>();
test<pmf&>();
test<pmf&&>();
test<pmf const &>();
using function_ptr = void(*)(int, float&, const char*);
test<function_ptr>();
test<function_ptr&>();
test<function_ptr&&>();
test<function_ptr const &>();
using function_ref = void(&)(int, float&, const char*);
test<function_ref>();
using function = void(int, float&, const char*);
test<function>();
using abominable = void(int, float&, const char*) const;
test<abominable>();
}