libcxx/test/std/utilities/meta/meta.unary/meta.unary.prop/is_pod.pass.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-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // type_traits
  10
  11 // is_pod
  12
  13 #include <type_traits>
  14 #include "test_macros.h"
  15
  16 template <class T>
  17 void test_is_pod()
  18 {
  19     static_assert( std::is_pod<T>::value, "");
  20     static_assert( std::is_pod<const T>::value, "");
  21     static_assert( std::is_pod<volatile T>::value, "");
  22     static_assert( std::is_pod<const volatile T>::value, "");
  23 #if TEST_STD_VER > 14
  24     static_assert( std::is_pod_v<T>, "");
  25     static_assert( std::is_pod_v<const T>, "");
  26     static_assert( std::is_pod_v<volatile T>, "");
  27     static_assert( std::is_pod_v<const volatile T>, "");
  28 #endif
  29 }
  30
  31 template <class T>
  32 void test_is_not_pod()
  33 {
  34     static_assert(!std::is_pod<T>::value, "");
  35     static_assert(!std::is_pod<const T>::value, "");
  36     static_assert(!std::is_pod<volatile T>::value, "");
  37     static_assert(!std::is_pod<const volatile T>::value, "");
  38 #if TEST_STD_VER > 14
  39     static_assert(!std::is_pod_v<T>, "");
  40     static_assert(!std::is_pod_v<const T>, "");
  41     static_assert(!std::is_pod_v<volatile T>, "");
  42     static_assert(!std::is_pod_v<const volatile T>, "");
  43 #endif
  44 }
  45
  46 class Class
  47 {
  48 public:
  49     ~Class();
  50 };
  51
  52 int main(int, char**)
  53 {
  54     test_is_not_pod<void>();
  55     test_is_not_pod<int&>();
  56     test_is_not_pod<Class>();
  57
  58     test_is_pod<int>();
  59     test_is_pod<double>();
  60     test_is_pod<int*>();
  61     test_is_pod<const int*>();
  62     test_is_pod<char[3]>();
  63     test_is_pod<char[]>();
  64
  65   return 0;
  66 }