libstdc++-v3/testsuite/27_io/basic_ostringstream/cons/char/3.cc

   1 // 2001-05-23 Benjamin Kosnik  <bkoz@redhat.com>
   2
   3 // Copyright (C) 2001-2019 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 // 27.7.3.2 member functions (ostringstream_members)
  21
  22 #include <sstream>
  23 #include <testsuite_hooks.h>
  24
  25 // 03: sanity checks for strings, stringbufs
  26 void
  27 test03()
  28 {
  29   // Empty string sanity check.
  30   std::string str01;
  31   std::string::iterator __i_start = str01.begin();
  32   std::string::iterator __i_end = str01.end();
  33   std::string::size_type len = str01.size();
  34   VERIFY( __i_start == __i_end );
  35   VERIFY( len == 0 );
  36
  37   // Full string sanity check.
  38   std::string str02("these golden days, i spend waiting for you:\n"
  39                     "Betty Carter on Verve with I'm Yours and You're Mine.");
  40   __i_start = str02.begin();
  41   __i_end = str02.end();
  42   len = str02.size();
  43   VERIFY( __i_start != __i_end );
  44   VERIFY( len != 0 );
  45
  46   // Test an empty ostringstream for sanity.
  47   std::ostringstream ostrstream0;
  48   std::string str03 = ostrstream0.str();
  49   __i_start = str03.begin();
  50   __i_end = str03.end();
  51   len = str03.size();
  52   VERIFY( __i_start == __i_end );
  53   VERIFY( len == 0 );
  54   VERIFY( str01 == str03 );
  55 }
  56
  57 int main()
  58 {
  59   test03();
  60   return 0;
  61 }