libstdc++-v3/testsuite/27_io/basic_fstream/cons/base.cc

   1 // Copyright (C) 2015-2020 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-options "-O0" }
  19 // { dg-do link { target c++11 } }
  20 // { dg-require-effective-target cxx11-abi }
  21
  22 #include <fstream>
  23 #include <string>
  24
  25 using namespace std;
  26
  27 string s;
  28
  29 template<typename T> struct F : T { F() : T(s) { } };
  30
  31 int main()
  32 {
  33   F<fstream>  fee;
  34   F<ifstream> fi;
  35   F<ofstream> fo;
  36 #ifdef _GLIBCXX_USE_WCHAR_T
  37   F<wfstream> fum;
  38   F<wifstream> fiw;
  39   F<wofstream> fow;
  40 #endif
  41 }