libcxx/test/std/strings/string.view/string.view.deduct/implicit.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 // UNSUPPORTED: c++03, c++11, c++14
  10
  11 // <string_view>
  12
  13 // basic_string_view
  14
  15 // Make sure that the implicitly-generated CTAD works.
  16
  17 #include <string_view>
  18
  19 #include "test_macros.h"
  20
  21 int main(int, char**) {
  22   {
  23     char const* str = "hello world";
  24     std::basic_string_view sv(str);
  25     ASSERT_SAME_TYPE(decltype(sv), std::basic_string_view<char>);
  26   }
  27 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
  28   {
  29     wchar_t const* str = L"hello world";
  30     std::basic_string_view sv(str);
  31     ASSERT_SAME_TYPE(decltype(sv), std::basic_string_view<wchar_t>);
  32   }
  33 #endif
  34
  35   return 0;
  36 }