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

// 1999-04-12 bkoz

// Copyright (C) 1999, 2000, 2002, 2003 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING.  If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.

// 27.6.1.2.2 arithmetic extractors

#include <istream>
#include <sstream>
#include <locale>
#include <testsuite_hooks.h>

std::string str_01;
std::string str_02("true false 0 1 110001");
std::string str_03("-19999999 777777 -234234 233 -234 33 1 66300.25 .315 1.5");
std::string str_04("0123");

std::stringbuf isbuf_01(std::ios_base::in);
std::stringbuf isbuf_02(str_02, std::ios_base::in);
std::stringbuf isbuf_03(str_03, std::ios_base::in);
std::stringbuf isbuf_04(str_04, std::ios_base::in);

std::istream is_01(NULL);
std::istream is_02(&isbuf_02);
std::istream is_03(&isbuf_03);
std::istream is_04(&isbuf_04);
std::stringstream ss_01(str_01);
 
// In the presence of no fmtflags, the input operator should behave
// like strtol(x, y, 0)
// libstdc++/90
bool test11()
{
  bool test __attribute__((unused)) = true;
  const char* cstrlit = "0x2a";

  // sanity check via 'C' library call
  char* err;
  long l = std::strtol(cstrlit, &err, 0);

  std::istringstream iss(cstrlit);
  iss.setf(std::ios::fmtflags(0), std::ios::basefield);
  int i;
  iss >> i;

  VERIFY (!iss.fail());
  VERIFY (l == i);

  return test;
}

int main()
{
  test11();
  return 0;
}