libstdc++-v3/testsuite/27_io/basic_stringstream/str/wchar_t/3.cc

   1 // Copyright (C) 2004-2024 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // 27.7.6 member functions (stringstream_members)
  19
  20 #include <sstream>
  21 #include <testsuite_hooks.h>
  22
  23 void
  24 test03()
  25 {
  26   //
  27   // 1: Automatic formatting of a compound string
  28   //
  29   int i = 1024;
  30   int *pi = &i;
  31   double d = 3.14159;
  32   double *pd = &d;
  33   std::wstring blank;
  34   std::wostringstream ostrst01;
  35   std::wostringstream ostrst02(blank);
  36
  37   // No buffer, so should be created.
  38   ostrst01 << L"i: " << i << L" i's address:  " << pi << L'\n'
  39              << L"d: " << d << L" d's address: " << pd << std::endl;
  40   // Buffer, so existing buffer should be overwritten.
  41   ostrst02 << L"i: " << i << L" i's address:  " << pi << L'\n'
  42              << L"d: " << d << L" d's address: " << pd << std::endl;
  43
  44   std::wstring msg01 = ostrst01.str();
  45   std::wstring msg02 = ostrst02.str();
  46   VERIFY( msg01 == msg02 );
  47   VERIFY( msg02 != blank );
  48 }
  49
  50 int main()
  51 {
  52   test03();
  53   return 0;
  54 }