libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/11.cc

   1 // 1999-04-12 bkoz
   2
   3 // Copyright (C) 1999-2019 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 #include <istream>
  23 #include <sstream>
  24 #include <locale>
  25 #include <cstdlib>
  26 #include <testsuite_hooks.h>
  27
  28 // In the presence of no fmtflags, the input operator should behave
  29 // like strtol(x, y, 0)
  30 // libstdc++/90
  31 void test11()
  32 {
  33   const char* cstrlit = "0x2a";
  34
  35   // sanity check via 'C' library call
  36   char* err;
  37   long l = std::strtol(cstrlit, &err, 0);
  38
  39   std::istringstream iss(cstrlit);
  40   iss.setf(std::ios::fmtflags(0), std::ios::basefield);
  41   int i;
  42   iss >> i;
  43
  44   VERIFY (!iss.fail());
  45   VERIFY (l == i);
  46 }
  47
  48 int main()
  49 {
  50   test11();
  51   return 0;
  52 }