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[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 27_io / basic_istream / extractors_arithmetic / wchar_t / 09.cc

// Copyright (C) 2004-2024 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 3, 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 COPYING3.  If not see
// <http://www.gnu.org/licenses/>.

// 27.6.1.2.2 arithmetic extractors

// { dg-do run { xfail lax_strtofp } }

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

void test09()
{
  std::wstring st(L"2.456e3-+0.567e-2");
  std::wstringbuf sb(st);
  std::wistream is(&sb);
  double f1 = 0, f2 = 0;
  wchar_t c;
  (is >> std::ws) >> f1;
  (is >> std::ws) >> c;
  (is >> std::ws) >> f2;
  VERIFY( f1 == 2456 );
  VERIFY( f2 == (double) 0.00567 ); // N.B. cast removes excess precision
  VERIFY( c == L'-' );
}

int main()
{
  test09();
  return 0;
}