text: /****************************************************************************
   *
   * Copyright 2018 Samsung Electronics All Rights Reserved.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied. See the License for the specific
   * language governing permissions and limitations under the License.
   *
   ****************************************************************************/
  //===----------------------------------------------------------------------===//
  //
  //                     The LLVM Compiler Infrastructure
  //
  // This file is dual licensed under the MIT and the University of Illinois Open
  // Source Licenses. See LICENSE.TXT for details.
  //
  //===----------------------------------------------------------------------===//
  
  // <string>
  
  // template<> struct char_traits<char16_t>
  
  // static char_type* move(char_type* s1, const char_type* s2, size_t n);
  
  #include <string>
  #include <cassert>
  #include "test_macros.h"
  #include "libcxx_tc_common.h"
  
  int tc_libcxx_strings_char_traits_specializations_char16_t_move(void)
  {
  #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
      char16_t s1[] = {1, 2, 3};
      TC_ASSERT_EXPR(std::char_traits<char16_t>::move(s1, s1+1, 2) == s1);
      TC_ASSERT_EXPR(s1[0] == char16_t(2));
      TC_ASSERT_EXPR(s1[1] == char16_t(3));
      TC_ASSERT_EXPR(s1[2] == char16_t(3));
      s1[2] = char16_t(0);
      TC_ASSERT_EXPR(std::char_traits<char16_t>::move(s1+1, s1, 2) == s1+1);
      TC_ASSERT_EXPR(s1[0] == char16_t(2));
      TC_ASSERT_EXPR(s1[1] == char16_t(2));
      TC_ASSERT_EXPR(s1[2] == char16_t(3));
      TC_ASSERT_EXPR(std::char_traits<char16_t>::move(NULL, s1, 0) == NULL);
      TC_ASSERT_EXPR(std::char_traits<char16_t>::move(s1, NULL, 0) == s1);
  #endif  // _LIBCPP_HAS_NO_UNICODE_CHARS
      TC_SUCCESS_RESULT();
      return 0;
  }
  