libstdc++-v3/testsuite/27_io/objects/wchar_t/9661-2_xin.cc

   1 // 2003-04-30  Petur Runolfsson <peturr02@ru.is>
   2
   3 // Copyright (C) 2003-2019 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 #include <testsuite_hooks.h>
  21 #include <cstdio>
  22 #include <iostream>
  23 #include <cwchar>
  24
  25 void test02()
  26 {
  27   using namespace std;
  28
  29   wint_t c1 = fgetwc(stdin);
  30   wint_t c2 = wcin.rdbuf()->sputbackc(c1);
  31   VERIFY( c2 == c1 );
  32
  33   wint_t c3 = fgetwc(stdin);
  34   VERIFY( c3 == c1 );
  35   ungetwc(c3, stdin);
  36
  37   wint_t c4 = wcin.rdbuf()->sgetc();
  38   VERIFY( c4 == c3 );
  39 }
  40
  41 int main()
  42 {
  43   test02();
  44   return 0;
  45 }