libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/09.cc

   1 // Copyright (C) 2004 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  17 // USA.
  18
  19 // 27.6.1.2.2 arithmetic extractors
  20
  21 #include <istream>
  22 #include <sstream>
  23 #include <locale>
  24 #include <testsuite_hooks.h>
  25
  26 bool test09()
  27 {
  28   bool test __attribute__((unused)) = true;
  29
  30   std::wstring st(L"2.456e3-+0.567e-2");
  31   std::wstringbuf sb(st);
  32   std::wistream is(&sb);
  33   double f1 = 0, f2 = 0;
  34   wchar_t c;
  35   (is >> std::ws) >> f1;
  36   (is >> std::ws) >> c;
  37   (is >> std::ws) >> f2;
  38   test = f1 == 2456;
  39   VERIFY( f2 == 0.00567 );
  40   VERIFY( c == L'-' );
  41   return test;
  42 }
  43
  44 int main()
  45 {
  46   test09();
  47   return 0;
  48 }