libstdc++-v3/testsuite/22_locale/num_get/get/char/10.cc

   1 // 2003-12-19  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009
   4 // Free Software Foundation
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 // 22.2.2.1.1  num_get members
  22
  23 #include <locale>
  24 #include <sstream>
  25 #include <testsuite_hooks.h>
  26
  27 void test01()
  28 {
  29   using namespace std;
  30   typedef istreambuf_iterator<char> iterator_type;
  31
  32   bool test __attribute__((unused)) = true;
  33
  34   istringstream iss;
  35   const num_get<char>& ng = use_facet<num_get<char> >(iss.getloc());
  36   ios_base::iostate err = ios_base::goodbit;
  37   iterator_type end;
  38   float f = 1.0f;
  39   double d = 1.0;
  40   long double ld = 1.0l;
  41
  42   iss.str("1e.");
  43   err = ios_base::goodbit;
  44   end = ng.get(iss.rdbuf(), 0, iss, err, f);
  45   VERIFY( err == ios_base::failbit );
  46   VERIFY( *end == '.' );
  47   VERIFY( f == 0.0f );
  48
  49   iss.str("3e+");
  50   iss.clear();
  51   err = ios_base::goodbit;
  52   end = ng.get(iss.rdbuf(), 0, iss, err, d);
  53   VERIFY( err == (ios_base::failbit | ios_base::eofbit) );
  54   VERIFY( d == 0.0 );
  55
  56   iss.str("6e ");
  57   iss.clear();
  58   err = ios_base::goodbit;
  59   end = ng.get(iss.rdbuf(), 0, iss, err, ld);
  60   VERIFY( *end == ' ' );
  61
  62   // libstdc++/37624.  We can't always obtain the required behavior
  63   // when sscanf is involved, because of, e.g., glibc/1765.
  64 #if defined(_GLIBCXX_HAVE_STRTOLD) && !defined(_GLIBCXX_HAVE_BROKEN_STRTOLD)
  65   VERIFY( err == ios_base::failbit );
  66   VERIFY( ld == 0.0l );
  67 #endif
  68 }
  69
  70 int main()
  71 {
  72   test01();
  73   return 0;
  74 }