libstdc++-v3/testsuite/27_io/instantiations.cc

   1 // Copyright (C) 2001, 2002 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 2, 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 COPYING.  If not, write to the Free
  16 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  17 // USA.
  18
  19 // Some members need to be explicitly instantiated, so that users can build
  20 // their own code with -fno-implicit-templates and not suffer from a zillion
  21 // link errors.
  22
  23 // { dg-options "-fno-implicit-templates" }
  24
  25 #include <fstream>
  26 #include <istream>
  27 #include <ostream>
  28 #include <sstream>
  29 #include <iomanip>
  30 #include <testsuite_hooks.h>
  31
  32
  33 // PR libstdc++/3829
  34 void
  35 test01()
  36 {
  37   using namespace std;
  38   bool test = true;
  39   string x ("   this is text");
  40   istringstream  sin (x);
  41   ostringstream  sout;
  42
  43   // same order as in bits/std_iomanip.h
  44   sin >> resetiosflags(ios_base::dec)
  45       >> setiosflags(ios_base::dec)
  46       >> setbase(ios_base::dec)
  47       >> setfill('c')
  48       >> setprecision(5)
  49       >> setw(20)
  50       >> ws;
  51   VERIFY(sin.good());
  52
  53   sout << resetiosflags(ios_base::dec)
  54        << setiosflags(ios_base::dec)
  55        << setbase(ios_base::dec)
  56        << setfill('c')
  57        << setprecision(5)
  58        << setw(20)
  59        << ends << flush << endl;
  60   VERIFY(sout.good());
  61 }
  62
  63
  64 int
  65 main()
  66 {
  67   test01();
  68   return 0;
  69 }