42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
/* This file is part of the mp project.
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* Copyright (c) 2020 MerryMage
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* SPDX-License-Identifier: 0BSD
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*/
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#pragma once
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#include <tuple>
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#include <type_traits>
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#include <mp/traits/function_info.h>
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#include <mp/traits/is_instance_of_template.h>
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using namespace mp;
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// function_info
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struct Bar {
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int frob(double a) { return a; }
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};
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static_assert(parameter_count_v<void()> == 0);
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static_assert(parameter_count_v<void(int, int, int)> == 3);
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static_assert(std::is_same_v<get_parameter<void(*)(bool, int, double), 2>, double>);
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static_assert(std::is_same_v<equivalent_function_type<void(*)(bool, int, double)>, void(bool, int, double)>);
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static_assert(std::is_same_v<return_type<void(*)(bool, int, double)>, void>);
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static_assert(std::is_same_v<equivalent_function_type<decltype(&Bar::frob)>, int(double)>);
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static_assert(std::is_same_v<class_type<decltype(&Bar::frob)>, Bar>);
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// is_instance_of_template
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template<class, class...>
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class Foo {};
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template<class, class>
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class Pair {};
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static_assert(is_instance_of_template_v<std::tuple, std::tuple<int, bool>>);
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static_assert(!is_instance_of_template_v<std::tuple, bool>);
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static_assert(is_instance_of_template_v<Foo, Foo<bool>>);
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static_assert(is_instance_of_template_v<Pair, Pair<bool, int>>);
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static_assert(!is_instance_of_template_v<Pair, Foo<bool, int>>);
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