90 lines
2.7 KiB
C++
90 lines
2.7 KiB
C++
/*
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* This file is part of libgim.
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*
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* libgim is free software: you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* libgim is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with libgim. If not, see <http://www.gnu.org/licenses/>.
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*
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* Copyright 2011 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __UTIL_STREAM_HPP
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#define __UTIL_STREAM_HPP
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#include <iostream>
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#include "types/bits.hpp"
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namespace util {
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namespace stream {
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//---------------------------------------------------------------------
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template <typename T>
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struct numeric
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{
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numeric (T _val): val (_val) { ; }
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T val;
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};
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template <typename T>
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std::ostream& operator<< (std::ostream &os, numeric<T> n)
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{
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static_assert (std::is_fundamental<T>::value,
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"numeric streamer is intended for chars");
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using integral_t = typename std::conditional<
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std::is_floating_point<T>::value,
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T,
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typename std::conditional<
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std::is_signed<T>::value,
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sized_type< intmax_t>::sint,
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sized_type<uintmax_t>::uint
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>::type
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>::type;
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return os << (integral_t)n.val;
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}
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//---------------------------------------------------------------------
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class null : public std::ostream {
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public:
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std::ostream & put (char c);
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std::ostream & write (const char *s, std::streamsize n);
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std::streampos tellp (void);
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std::ostream & seekp (std::streampos pos);
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std::ostream & seekp (std::streamoff off,
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std::ios_base::seekdir dir);
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std::ostream & flush (void);
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bool good (void) const;
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bool bad (void) const;
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bool eof (void) const;
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bool fail (void) const;
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};
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//---------------------------------------------------------------------
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struct bits {
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bits (uintmax_t value, unsigned count);
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uintmax_t value;
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unsigned count;
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};
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std::ostream& operator<< (std::ostream&, bits);
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}
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}
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#endif
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