libstdc++-v3/testsuite/21_strings/basic_string/modifiers/append/wchar_t/4.cc

   1 // { dg-options "-std=gnu++17" }
   2
   3 // Copyright (C) 2016 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // [string.modifiers]
  21
  22 #include <string>
  23 #include <testsuite_hooks.h>
  24
  25 void
  26 test03()
  27 {
  28   bool test __attribute__((unused)) = true;
  29   std::wstring_view str1(L"foo");
  30   std::wstring str2;
  31   str2 += str1;
  32   VERIFY (str2 == str1);
  33   std::wstring str3;
  34   str3.append(str1);
  35   VERIFY (str3 == str1);
  36   std::wstring str4;
  37   str4.append(str1, 1, 2);
  38   VERIFY (str4 == L"oo");
  39 }
  40
  41 int main()
  42 {
  43   test03();
  44   return 0;
  45 }