libstdc++-v3/testsuite/27_io/basic_filebuf/underflow/wchar_t/9520.cc

   1 // { dg-require-namedlocale "de_DE.ISO8859-15" }
   2
   3 // 2003-05-03  Petur Runolfsson <peturr02@ru.is>
   4
   5 // Copyright (C) 2003-2019 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 #include <testsuite_hooks.h>
  23 #include <fstream>
  24 #include <cstdio>
  25
  26 // libstdc++/9520
  27 void test01()
  28 {
  29   using namespace std;
  30
  31   const char* name = "tmp_9520";
  32
  33   FILE* file = fopen(name, "w");
  34   for (int i = 1; i < 256; ++i)
  35     putc(static_cast<unsigned char>(i), file);
  36   fclose(file);
  37
  38   locale loc (locale(ISO_8859(15,de_DE)));
  39   wchar_t buf[1];
  40   wfilebuf fb;
  41   fb.pubimbue(loc);
  42   fb.pubsetbuf(buf, 1);
  43   fb.open(name, ios_base::in);
  44
  45   for (int j = 1; j < 256; ++j)
  46     {
  47       wfilebuf::int_type c1 = fb.sgetc();
  48       VERIFY( c1 != wfilebuf::traits_type::eof() );
  49       wfilebuf::int_type c2 = fb.sbumpc();
  50       VERIFY( c1 == c2 );
  51     }
  52
  53   fb.close();
  54 }
  55
  56 int main()
  57 {
  58   test01();
  59   return 0;
  60 }