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

   1 // 1999-04-12 bkoz
   2
   3 // Copyright (C) 1999-2018 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // 27.6.1.2.2 arithmetic extractors
  21
  22 // { dg-do run { xfail lax_strtofp } }
  23
  24 #include <istream>
  25 #include <sstream>
  26 #include <locale>
  27 #include <testsuite_hooks.h>
  28
  29 void test09()
  30 {
  31   std::string st("2.456e3-+0.567e-2");
  32   std::stringbuf sb(st);
  33   std::istream is(&sb);
  34   double f1 = 0, f2 = 0;
  35   char c;
  36   (is>>std::ws) >> f1;
  37   (is>>std::ws) >> c;
  38   (is>>std::ws) >> f2;
  39   VERIFY( f1 == 2456 );
  40   VERIFY( f2 == 0.00567 );
  41   VERIFY( c == '-' );
  42 }
  43
  44 int main()
  45 {
  46   test09();
  47   return 0;
  48 }