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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// type_traits
// member_function_pointer
#include <type_traits>
#include "test_macros.h"
// NOTE: On Windows the function `test_is_member_function<void()>` and
// `test_is_member_function<void() noexcept> has the same mangled despite being
// a distinct instantiation. This causes Clang to emit an error. However
// structs do not have this problem.
template <class T>
struct test_member_function_pointer_imp {
static_assert(!std::is_void<T>::value, "");
#if TEST_STD_VER > 11
static_assert(!std::is_null_pointer<T>::value, "");
#endif
static_assert(!std::is_integral<T>::value, "");
static_assert(!std::is_floating_point<T>::value, "");
static_assert(!std::is_array<T>::value, "");
static_assert(!std::is_pointer<T>::value, "");
static_assert(!std::is_lvalue_reference<T>::value, "");
static_assert(!std::is_rvalue_reference<T>::value, "");
static_assert(!std::is_member_object_pointer<T>::value, "");
static_assert( std::is_member_function_pointer<T>::value, "");
static_assert(!std::is_enum<T>::value, "");
static_assert(!std::is_union<T>::value, "");
static_assert(!std::is_class<T>::value, "");
static_assert(!std::is_function<T>::value, "");
};
template <class T>
struct test_member_function_pointer :
test_member_function_pointer_imp<T>,
test_member_function_pointer_imp<const T>,
test_member_function_pointer_imp<volatile T>,
test_member_function_pointer_imp<const volatile T>
{
};
class Class
{
};
struct incomplete_type;
int main()
{
test_member_function_pointer<void (Class::*)()>();
test_member_function_pointer<void (Class::*)(int)>();
test_member_function_pointer<void (Class::*)(int, char)>();
test_member_function_pointer<void (Class::*)() const>();
test_member_function_pointer<void (Class::*)(int) const>();
test_member_function_pointer<void (Class::*)(int, char) const>();
test_member_function_pointer<void (Class::*)() volatile>();
test_member_function_pointer<void (Class::*)(int) volatile>();
test_member_function_pointer<void (Class::*)(int, char) volatile>();
test_member_function_pointer<void (Class::*)(...)>();
test_member_function_pointer<void (Class::*)(int, ...)>();
test_member_function_pointer<void (Class::*)(int, char, ...)>();
test_member_function_pointer<void (Class::*)(...) const>();
test_member_function_pointer<void (Class::*)(int, ...) const>();
test_member_function_pointer<void (Class::*)(int, char, ...) const>();
test_member_function_pointer<void (Class::*)(...) volatile>();
test_member_function_pointer<void (Class::*)(int, ...) volatile>();
test_member_function_pointer<void (Class::*)(int, char, ...) volatile>();
// reference qualifiers on functions are a C++11 extension
#if TEST_STD_VER >= 11
// Noexcept qualifiers
test_member_function_pointer<void (Class::*)() noexcept>();
test_member_function_pointer<void (Class::*)(int) noexcept>();
test_member_function_pointer<void (Class::*)(int, char) noexcept>();
test_member_function_pointer<void (Class::*)() const noexcept>();
test_member_function_pointer<void (Class::*)(int) const noexcept>();
test_member_function_pointer<void (Class::*)(int, char) const noexcept>();
test_member_function_pointer<void (Class::*)() volatile noexcept>();
test_member_function_pointer<void (Class::*)(int) volatile noexcept>();
test_member_function_pointer<void (Class::*)(int, char) volatile noexcept>();
test_member_function_pointer<void (Class::*)(...) noexcept>();
test_member_function_pointer<void (Class::*)(int, ...) noexcept>();
test_member_function_pointer<void (Class::*)(int, char, ...) noexcept>();
test_member_function_pointer<void (Class::*)(...) const noexcept>();
test_member_function_pointer<void (Class::*)(int, ...) const noexcept>();
test_member_function_pointer<void (Class::*)(int, char, ...) const noexcept>();
test_member_function_pointer<void (Class::*)(...) volatile noexcept>();
test_member_function_pointer<void (Class::*)(int, ...) volatile noexcept>();
test_member_function_pointer<void (Class::*)(int, char, ...) volatile noexcept>();
// lvalue qualifiers
test_member_function_pointer<void (Class::*)() &>();
test_member_function_pointer<void (Class::*)(int) &>();
test_member_function_pointer<void (Class::*)(int, char) &>();
test_member_function_pointer<void (Class::*)(...) &>();
test_member_function_pointer<void (Class::*)(int,...) &>();
test_member_function_pointer<void (Class::*)(int, char,...) &>();
test_member_function_pointer<void (Class::*)() const &>();
test_member_function_pointer<void (Class::*)(int) const &>();
test_member_function_pointer<void (Class::*)(int, char) const &>();
test_member_function_pointer<void (Class::*)(...) const &>();
test_member_function_pointer<void (Class::*)(int,...) const &>();
test_member_function_pointer<void (Class::*)(int, char,...) const &>();
test_member_function_pointer<void (Class::*)() volatile &>();
test_member_function_pointer<void (Class::*)(int) volatile &>();
test_member_function_pointer<void (Class::*)(int, char) volatile &>();
test_member_function_pointer<void (Class::*)(...) volatile &>();
test_member_function_pointer<void (Class::*)(int,...) volatile &>();
test_member_function_pointer<void (Class::*)(int, char,...) volatile &>();
test_member_function_pointer<void (Class::*)() const volatile &>();
test_member_function_pointer<void (Class::*)(int) const volatile &>();
test_member_function_pointer<void (Class::*)(int, char) const volatile &>();
test_member_function_pointer<void (Class::*)(...) const volatile &>();
test_member_function_pointer<void (Class::*)(int,...) const volatile &>();
test_member_function_pointer<void (Class::*)(int, char,...) const volatile &>();
// Lvalue qualifiers with noexcept
test_member_function_pointer<void (Class::*)() & noexcept>();
test_member_function_pointer<void (Class::*)(int) & noexcept>();
test_member_function_pointer<void (Class::*)(int, char) & noexcept>();
test_member_function_pointer<void (Class::*)(...) & noexcept>();
test_member_function_pointer<void (Class::*)(int,...) & noexcept>();
test_member_function_pointer<void (Class::*)(int, char,...) & noexcept>();
test_member_function_pointer<void (Class::*)() const & noexcept>();
test_member_function_pointer<void (Class::*)(int) const & noexcept>();
test_member_function_pointer<void (Class::*)(int, char) const & noexcept>();
test_member_function_pointer<void (Class::*)(...) const & noexcept>();
test_member_function_pointer<void (Class::*)(int,...) const & noexcept>();
test_member_function_pointer<void (Class::*)(int, char,...) const & noexcept>();
test_member_function_pointer<void (Class::*)() volatile & noexcept>();
test_member_function_pointer<void (Class::*)(int) volatile & noexcept>();
test_member_function_pointer<void (Class::*)(int, char) volatile & noexcept>();
test_member_function_pointer<void (Class::*)(...) volatile & noexcept>();
test_member_function_pointer<void (Class::*)(int,...) volatile & noexcept>();
test_member_function_pointer<void (Class::*)(int, char,...) volatile & noexcept>();
test_member_function_pointer<void (Class::*)() const volatile & noexcept>();
test_member_function_pointer<void (Class::*)(int) const volatile & noexcept>();
test_member_function_pointer<void (Class::*)(int, char) const volatile & noexcept>();
test_member_function_pointer<void (Class::*)(...) const volatile & noexcept>();
test_member_function_pointer<void (Class::*)(int,...) const volatile & noexcept>();
test_member_function_pointer<void (Class::*)(int, char,...) const volatile & noexcept>();
// RValue qualifiers
test_member_function_pointer<void (Class::*)() &&>();
test_member_function_pointer<void (Class::*)(int) &&>();
test_member_function_pointer<void (Class::*)(int, char) &&>();
test_member_function_pointer<void (Class::*)(...) &&>();
test_member_function_pointer<void (Class::*)(int,...) &&>();
test_member_function_pointer<void (Class::*)(int, char,...) &&>();
test_member_function_pointer<void (Class::*)() const &&>();
test_member_function_pointer<void (Class::*)(int) const &&>();
test_member_function_pointer<void (Class::*)(int, char) const &&>();
test_member_function_pointer<void (Class::*)(...) const &&>();
test_member_function_pointer<void (Class::*)(int,...) const &&>();
test_member_function_pointer<void (Class::*)(int, char,...) const &&>();
test_member_function_pointer<void (Class::*)() volatile &&>();
test_member_function_pointer<void (Class::*)(int) volatile &&>();
test_member_function_pointer<void (Class::*)(int, char) volatile &&>();
test_member_function_pointer<void (Class::*)(...) volatile &&>();
test_member_function_pointer<void (Class::*)(int,...) volatile &&>();
test_member_function_pointer<void (Class::*)(int, char,...) volatile &&>();
test_member_function_pointer<void (Class::*)() const volatile &&>();
test_member_function_pointer<void (Class::*)(int) const volatile &&>();
test_member_function_pointer<void (Class::*)(int, char) const volatile &&>();
test_member_function_pointer<void (Class::*)(...) const volatile &&>();
test_member_function_pointer<void (Class::*)(int,...) const volatile &&>();
test_member_function_pointer<void (Class::*)(int, char,...) const volatile &&>();
// RValue qualifiers with noexcept
test_member_function_pointer<void (Class::*)() && noexcept>();
test_member_function_pointer<void (Class::*)(int) && noexcept>();
test_member_function_pointer<void (Class::*)(int, char) && noexcept>();
test_member_function_pointer<void (Class::*)(...) && noexcept>();
test_member_function_pointer<void (Class::*)(int,...) && noexcept>();
test_member_function_pointer<void (Class::*)(int, char,...) && noexcept>();
test_member_function_pointer<void (Class::*)() const && noexcept>();
test_member_function_pointer<void (Class::*)(int) const && noexcept>();
test_member_function_pointer<void (Class::*)(int, char) const && noexcept>();
test_member_function_pointer<void (Class::*)(...) const && noexcept>();
test_member_function_pointer<void (Class::*)(int,...) const && noexcept>();
test_member_function_pointer<void (Class::*)(int, char,...) const && noexcept>();
test_member_function_pointer<void (Class::*)() volatile && noexcept>();
test_member_function_pointer<void (Class::*)(int) volatile && noexcept>();
test_member_function_pointer<void (Class::*)(int, char) volatile && noexcept>();
test_member_function_pointer<void (Class::*)(...) volatile && noexcept>();
test_member_function_pointer<void (Class::*)(int,...) volatile && noexcept>();
test_member_function_pointer<void (Class::*)(int, char,...) volatile && noexcept>();
test_member_function_pointer<void (Class::*)() const volatile && noexcept>();
test_member_function_pointer<void (Class::*)(int) const volatile && noexcept>();
test_member_function_pointer<void (Class::*)(int, char) const volatile && noexcept>();
test_member_function_pointer<void (Class::*)(...) const volatile && noexcept>();
test_member_function_pointer<void (Class::*)(int,...) const volatile && noexcept>();
test_member_function_pointer<void (Class::*)(int, char,...) const volatile && noexcept>();
#endif
// LWG#2582
static_assert(!std::is_member_function_pointer<incomplete_type>::value, "");
}
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