/*
 * Copyright (c) 2017 Jaroslav Jindrak
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

namespace std
{
    /**
     * 27.3, forward declarations:
     */

    template<class Char>
    class char_traits;

    template<>
    class char_traits<char>;

    template<>
    class char_traits<char16_t>;

    template<>
    class char_traits<char32_t>;

    template<>
    class char_traits<wchar_t>;



    template<class T>
    class allocator;



    template<class Char, class Traits = char_traits<Char>>
    class basic_ios;

    template<class Char, class Traits = char_traits<Char>>
    class basic_streambuf;

    template<class Char, class Traits = char_traits<Char>>
    class basic_istream;

    template<class Char, class Traits = char_traits<Char>>
    class basic_ostream;

    template<class Char, class Traits = char_traits<Char>>
    class basic_iostream;



    template<class Char, class Traits = char_traits<Char>,
             class Allocator = allocator<Char>>
    class basic_stringbuf;

    template<class Char, class Traits = char_traits<Char>,
             class Allocator = allocator<Char>>
    class basic_istringstream;

    template<class Char, class Traits = char_traits<Char>,
             class Allocator = allocator<Char>>
    class basic_ostringstream;

    template<class Char, class Traits = char_traits<Char>,
             class Allocator = allocator<Char>>
    class basic_stringstream;



    template<class Char, class Traits = char_traits<Char>>
    class basic_filebuf;

    template<class Char, class Traits = char_traits<Char>>
    class basic_ifstream;

    template<class Char, class Traits = char_traits<Char>>
    class basic_ofstream;

    template<class Char, class Traits = char_traits<Char>>
    class basic_fstream;



    template<class Char, class Traits = char_traits<Char>>
    class istreambuf_iterator;

    template<class Char, class Traits = char_traits<Char>>
    class ostreambuf_iterator;

    using ios  = basic_ios<char>;
    using wios = basic_ios<wchar_t>;

    using streambuf = basic_streambuf<char>;
    using istream   = basic_istream<char>;
    using ostream   = basic_ostream<char>;
    using iostream  = basic_iostream<char>;

    using stringbuf     = basic_stringbuf<char>;
    using istringstream = basic_istringstream<char>;
    using ostringstream = basic_ostringstream<char>;
    using stringstream  = basic_stringstream<char>;

    using filebuf  = basic_filebuf<char>;
    using ifstream = basic_ifstream<char>;
    using ofstream = basic_ofstream<char>;
    using fstream  = basic_fstream<char>;

    using wstreambuf = basic_streambuf<wchar_t>;
    using wistream   = basic_istream<wchar_t>;
    using wostream   = basic_ostream<wchar_t>;
    using wiostream  = basic_iostream<wchar_t>;

    using wstringbuf     = basic_stringbuf<wchar_t>;
    using wistringstream = basic_istringstream<wchar_t>;
    using wostringstream = basic_ostringstream<wchar_t>;
    using wstringstream  = basic_stringstream<wchar_t>;

    using wfilebuf  = basic_filebuf<wchar_t>;
    using wifstream = basic_ifstream<wchar_t>;
    using wofstream = basic_ofstream<wchar_t>;
    using wfstream  = basic_fstream<wchar_t>;

    template<class State>
    class fpos;

    // TODO: standard p. 1012, this is circular, it offers fix
    /* using streampos  = fpos<char_traits<char>::state_type>; */
    /* using wstreampos = fpos<char_traits<wchar_t>::state_type>; */
    // Temporary workaround.
    using streampos =  unsigned long long;
    using wstreampos = unsigned long long;
    // TODO: This should be in ios and not here?
    using streamoff = long long;
}