toolchain/gcc/libstdc++-v3/testsuite/backward/11460.cc

   1 // { dg-options "-Wno-deprecated" }
   2 // Copyright (C) 2003, 2004 Free Software Foundation, Inc.
   3 //
   4 // This file is part of the GNU ISO C++ Library.  This library is free
   5 // software; you can redistribute it and/or modify it under the
   6 // terms of the GNU General Public License as published by the
   7 // Free Software Foundation; either version 2, or (at your option)
   8 // any later version.
   9
  10 // This library is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14
  15 // You should have received a copy of the GNU General Public License along
  16 // with this library; see the file COPYING.  If not, write to the Free
  17 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  18 // USA.
  19
  20 #include <strstream>
  21 #include <testsuite_hooks.h>
  22
  23 class Buf : public std::strstreambuf
  24 {
  25 public:
  26   Buf(const char* p, std::streamsize n)
  27   : std::strstreambuf(p, n)
  28   { }
  29
  30   int_type pub_pbackfail(int_type c = traits_type::eof())
  31   {
  32     return pbackfail(c);
  33   }
  34 };
  35
  36 // libstdc++/11460
  37 void test01()
  38 {
  39   bool test __attribute__((unused)) = true;
  40
  41   typedef std::strstreambuf::traits_type Traits;
  42   const char str[] = "a\xff";
  43
  44   Buf buf(str, 2);
  45
  46   Traits::int_type a = Traits::to_int_type('a');
  47   VERIFY( buf.sbumpc() == a );
  48   VERIFY( buf.sungetc() == a );
  49   VERIFY( buf.sbumpc() == a );
  50   VERIFY( buf.sputbackc('a') == a );
  51   VERIFY( buf.sbumpc() == a );
  52   VERIFY( buf.pub_pbackfail() != Traits::eof() );
  53   VERIFY( buf.sbumpc() == a );
  54   VERIFY( buf.pub_pbackfail(a) == a );
  55   buf.sbumpc();
  56
  57   Traits::int_type xff = Traits::to_int_type('\xff');
  58   VERIFY( buf.sbumpc() == xff );
  59   VERIFY( buf.sungetc() == xff );
  60   VERIFY( buf.sbumpc() == xff );
  61   VERIFY( buf.sputbackc('\xff') == xff );
  62   VERIFY( buf.sbumpc() == xff );
  63   VERIFY( buf.pub_pbackfail() != Traits::eof() );
  64   VERIFY( buf.sbumpc() == xff );
  65   VERIFY( buf.pub_pbackfail(xff) == xff );
  66 }
  67
  68 int main()
  69 {
  70   test01();
  71   return 0;
  72 }