59 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// type_traits10 11// nullptr_t12// is_null_pointer13 14// UNSUPPORTED: c++03, c++1115 16#include <type_traits>17#include <cstddef> // for std::nullptr_t18 19#include "test_macros.h"20 21template <class T>22void test_nullptr_imp()23{24 static_assert(!std::is_void<T>::value, "");25 static_assert( std::is_null_pointer<T>::value, "");26 static_assert(!std::is_integral<T>::value, "");27 static_assert(!std::is_floating_point<T>::value, "");28 static_assert(!std::is_array<T>::value, "");29 static_assert(!std::is_pointer<T>::value, "");30 static_assert(!std::is_lvalue_reference<T>::value, "");31 static_assert(!std::is_rvalue_reference<T>::value, "");32 static_assert(!std::is_member_object_pointer<T>::value, "");33 static_assert(!std::is_member_function_pointer<T>::value, "");34 static_assert(!std::is_enum<T>::value, "");35 static_assert(!std::is_union<T>::value, "");36 static_assert(!std::is_class<T>::value, "");37 static_assert(!std::is_function<T>::value, "");38}39 40template <class T>41void test_nullptr()42{43 test_nullptr_imp<T>();44 test_nullptr_imp<const T>();45 test_nullptr_imp<volatile T>();46 test_nullptr_imp<const volatile T>();47}48 49struct incomplete_type;50 51int main(int, char**)52{53 test_nullptr<std::nullptr_t>();54 55// LWG#258256 static_assert(!std::is_null_pointer<incomplete_type>::value, "");57 return 0;58}59