libstdc++-v3/testsuite/21_strings/headers/cctype/functions_std.cc

// { dg-do compile }

// Copyright (C) 2007-2021 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/>.

#include <cctype>

namespace gnu
{
  using std::isalnum;
  using std::isdigit;
  using std::isprint;
  using std::isupper;
  using std::tolower;
  using std::isalpha;
  using std::isgraph;
  using std::ispunct;
  using std::isxdigit;
  using std::toupper;
  using std::iscntrl;
  using std::islower;
  using std::isspace;
}