libstdc++-v3/testsuite/27_io/basic_streambuf/sgetc/char16_t/80624.cc

   1 // Copyright (C) 2017-2024 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 // { dg-do run { target c++11 } }
  19
  20 #include <streambuf>
  21 #include <testsuite_hooks.h>
  22
  23 struct streambuf : std::basic_streambuf<char16_t>
  24 {
  25   basic_streambuf* setbuf(char_type* s, std::streamsize n) override
  26   {
  27     setp(s, s + n);
  28     setg(s, s, s + n);
  29     return this;
  30   }
  31 };
  32
  33 void
  34 test01()
  35 {
  36   using traits = streambuf::traits_type;
  37
  38   char16_t buf[2] = { streambuf::char_type(-1), streambuf::char_type(-2) };
  39   streambuf sb;
  40   sb.pubsetbuf(buf, 2);
  41
  42   streambuf::int_type res;
  43
  44   res = sb.sbumpc();
  45   VERIFY( traits::eq_int_type(res, traits::eof()) == false );
  46   res = sb.sbumpc();
  47   VERIFY( traits::eq_int_type(res, traits::eof()) == false );
  48   res = sb.sbumpc();
  49   VERIFY( traits::eq_int_type(res, traits::eof()) == true );
  50 }
  51
  52 int
  53 main()
  54 {
  55   test01();
  56 }