82 lines
2.2 KiB
C++
82 lines
2.2 KiB
C++
/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* Copyright 2011-2016 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 <iosfwd>
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#include <cstdint>
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#include <ostream>
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namespace cruft::stream {
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namespace scoped {
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#define SCOPED(NAME,TYPE) \
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class NAME { \
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public: \
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explicit NAME (std::ios_base&); \
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~NAME (); \
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\
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private: \
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std::ios_base &m_ios; \
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TYPE m_state; \
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}
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SCOPED(flags, std::ios_base::fmtflags);
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SCOPED(precision, std::streamsize);
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SCOPED(width, std::streamsize);
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#undef SCOPED
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};
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///////////////////////////////////////////////////////////////////////////
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class null_streambuf : public std::basic_streambuf<char> {
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public:
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virtual ~null_streambuf () { ; }
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};
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///////////////////////////////////////////////////////////////////////////
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class null_ostream : public std::basic_ostream<char> {
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public:
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virtual ~null_ostream () { ; }
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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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//---------------------------------------------------------------------
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std::ostream& operator<< (std::ostream&, bits);
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}
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#endif
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