Chris@16: /*
Chris@101:  *          Copyright Andrey Semashev 2007 - 2015.
Chris@16:  * Distributed under the Boost Software License, Version 1.0.
Chris@16:  *    (See accompanying file LICENSE_1_0.txt or copy at
Chris@16:  *          http://www.boost.org/LICENSE_1_0.txt)
Chris@16:  */
Chris@16: /*!
Chris@16:  * \file   formatting_ostream.hpp
Chris@16:  * \author Andrey Semashev
Chris@16:  * \date   11.07.2012
Chris@16:  *
Chris@16:  * The header contains implementation of a string stream used for log record formatting.
Chris@16:  */
Chris@16: 
Chris@16: #ifndef BOOST_LOG_UTILITY_FORMATTING_OSTREAM_HPP_INCLUDED_
Chris@16: #define BOOST_LOG_UTILITY_FORMATTING_OSTREAM_HPP_INCLUDED_
Chris@16: 
Chris@16: #include <ostream>
Chris@16: #include <string>
Chris@16: #include <memory>
Chris@16: #include <locale>
Chris@16: #include <boost/utility/string_ref_fwd.hpp>
Chris@16: #include <boost/type_traits/remove_cv.hpp>
Chris@16: #include <boost/log/detail/config.hpp>
Chris@16: #include <boost/log/detail/attachable_sstream_buf.hpp>
Chris@16: #include <boost/log/detail/code_conversion.hpp>
Chris@16: #include <boost/log/utility/string_literal_fwd.hpp>
Chris@16: #include <boost/log/utility/formatting_ostream_fwd.hpp>
Chris@16: #include <boost/utility/explicit_operator_bool.hpp>
Chris@16: #include <boost/log/detail/header.hpp>
Chris@16: 
Chris@16: #ifdef BOOST_HAS_PRAGMA_ONCE
Chris@16: #pragma once
Chris@16: #endif
Chris@16: 
Chris@16: namespace boost {
Chris@16: 
Chris@16: BOOST_LOG_OPEN_NAMESPACE
Chris@16: 
Chris@16: namespace aux {
Chris@16: 
Chris@16: template< typename T, typename R >
Chris@16: struct enable_if_char_type {};
Chris@16: template< typename R >
Chris@16: struct enable_if_char_type< char, R > { typedef R type; };
Chris@16: template< typename R >
Chris@16: struct enable_if_char_type< wchar_t, R > { typedef R type; };
Chris@16: #if !defined(BOOST_NO_CXX11_CHAR16_T)
Chris@16: template< typename R >
Chris@16: struct enable_if_char_type< char16_t, R > { typedef R type; };
Chris@16: #endif
Chris@16: #if !defined(BOOST_NO_CXX11_CHAR32_T)
Chris@16: template< typename R >
Chris@16: struct enable_if_char_type< char32_t, R > { typedef R type; };
Chris@16: #endif
Chris@16: 
Chris@16: } // namespace aux
Chris@16: 
Chris@16: /*!
Chris@16:  * \brief Stream wrapper for log records formatting.
Chris@16:  *
Chris@16:  * This stream wrapper is used by the library for log record formatting. It implements the standard string stream interface
Chris@16:  * with a few differences:
Chris@16:  *
Chris@16:  * \li It does not derive from standard types <tt>std::basic_ostream</tt>, <tt>std::basic_ios</tt> and <tt>std::ios_base</tt>,
Chris@16:  *     although it tries to implement their interfaces closely. There are a few small differences, mostly regarding <tt>rdbuf</tt>
Chris@16:  *     and <tt>str</tt> signatures, as well as the supported insertion operator overloads. The actual wrapped stream can be accessed
Chris@16:  *     through the <tt>stream</tt> methods.
Chris@16:  * \li By default, \c bool values are formatted using alphabetical representation rather than numeric.
Chris@16:  * \li The stream supports writing strings of character types different from the stream character type. The stream will perform
Chris@16:  *     character code conversion as needed using the imbued locale.
Chris@16:  * \li The stream operates on an external string object rather than on the embedded one. The string can be attached or detached
Chris@16:  *     from the stream dynamically.
Chris@16:  *
Chris@16:  * Although <tt>basic_formatting_ostream</tt> does not derive from <tt>std::basic_ostream</tt>, users are not required to add
Chris@16:  * special overloads of \c operator<< for it since the stream will by default reuse the operators for <tt>std::basic_ostream</tt>.
Chris@16:  * However, one can define special overloads of \c operator<< for <tt>basic_formatting_ostream</tt> if a certain type needs
Chris@16:  * special formatting when output to log.
Chris@16:  */
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: class basic_formatting_ostream
Chris@16: {
Chris@16: public:
Chris@16:     //! Character type
Chris@16:     typedef CharT char_type;
Chris@16:     //! Character traits
Chris@16:     typedef TraitsT traits_type;
Chris@16:     //! Memory allocator
Chris@16:     typedef AllocatorT allocator_type;
Chris@16:     //! Stream buffer type
Chris@16:     typedef boost::log::aux::basic_ostringstreambuf< char_type, traits_type, allocator_type > streambuf_type;
Chris@16:     //! Target string type
Chris@16:     typedef typename streambuf_type::string_type string_type;
Chris@16: 
Chris@16:     //! Stream type
Chris@16:     typedef std::basic_ostream< char_type, traits_type > ostream_type;
Chris@16:     //! Stream position type
Chris@16:     typedef typename ostream_type::pos_type pos_type;
Chris@16:     //! Stream offset type
Chris@16:     typedef typename ostream_type::off_type off_type;
Chris@16:     //! Integer type for characters
Chris@16:     typedef typename ostream_type::int_type int_type;
Chris@16: 
Chris@16:     typedef typename ostream_type::failure failure;
Chris@16:     typedef typename ostream_type::fmtflags fmtflags;
Chris@16:     typedef typename ostream_type::iostate iostate;
Chris@16:     typedef typename ostream_type::openmode openmode;
Chris@16:     typedef typename ostream_type::seekdir seekdir;
Chris@16:     typedef typename ostream_type::Init Init;
Chris@16: 
Chris@16:     typedef typename ostream_type::event event;
Chris@16:     typedef typename ostream_type::event_callback event_callback;
Chris@16: 
Chris@16:     class sentry :
Chris@16:         public ostream_type::sentry
Chris@16:     {
Chris@16:         typedef typename ostream_type::sentry base_type;
Chris@16: 
Chris@16:     public:
Chris@16:         explicit sentry(basic_formatting_ostream& strm) : base_type(strm.stream())
Chris@16:         {
Chris@16:         }
Chris@16: 
Chris@16:         BOOST_DELETED_FUNCTION(sentry(sentry const&))
Chris@16:         BOOST_DELETED_FUNCTION(sentry& operator= (sentry const&))
Chris@16:     };
Chris@16: 
Chris@16: private:
Chris@16:     //  Function types
Chris@16:     typedef std::ios_base& (*ios_base_manip)(std::ios_base&);
Chris@16:     typedef std::basic_ios< char_type, traits_type >& (*basic_ios_manip)(std::basic_ios< char_type, traits_type >&);
Chris@16:     typedef ostream_type& (*stream_manip)(ostream_type&);
Chris@16: 
Chris@16: public:
Chris@16:     static BOOST_CONSTEXPR_OR_CONST fmtflags boolalpha = ostream_type::boolalpha;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST fmtflags dec = ostream_type::dec;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST fmtflags fixed = ostream_type::fixed;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST fmtflags hex = ostream_type::hex;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST fmtflags internal = ostream_type::internal;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST fmtflags left = ostream_type::left;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST fmtflags oct = ostream_type::oct;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST fmtflags right = ostream_type::right;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST fmtflags scientific = ostream_type::scientific;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST fmtflags showbase = ostream_type::showbase;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST fmtflags showpoint = ostream_type::showpoint;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST fmtflags skipws = ostream_type::skipws;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST fmtflags unitbuf = ostream_type::unitbuf;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST fmtflags uppercase = ostream_type::uppercase;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST fmtflags adjustfield = ostream_type::adjustfield;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST fmtflags basefield = ostream_type::basefield;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST fmtflags floatfield = ostream_type::floatfield;
Chris@16: 
Chris@16:     static BOOST_CONSTEXPR_OR_CONST iostate badbit = ostream_type::badbit;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST iostate eofbit = ostream_type::eofbit;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST iostate failbit = ostream_type::failbit;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST iostate goodbit = ostream_type::goodbit;
Chris@16: 
Chris@16:     static BOOST_CONSTEXPR_OR_CONST openmode app = ostream_type::app;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST openmode ate = ostream_type::ate;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST openmode binary = ostream_type::binary;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST openmode in = ostream_type::in;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST openmode out = ostream_type::out;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST openmode trunc = ostream_type::trunc;
Chris@16: 
Chris@16:     static BOOST_CONSTEXPR_OR_CONST seekdir beg = ostream_type::beg;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST seekdir cur = ostream_type::cur;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST seekdir end = ostream_type::end;
Chris@16: 
Chris@16:     static BOOST_CONSTEXPR_OR_CONST event erase_event = ostream_type::erase_event;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST event imbue_event = ostream_type::imbue_event;
Chris@16:     static BOOST_CONSTEXPR_OR_CONST event copyfmt_event = ostream_type::copyfmt_event;
Chris@16: 
Chris@16: private:
Chris@16:     mutable streambuf_type m_streambuf;
Chris@16:     ostream_type m_stream;
Chris@16: 
Chris@16: public:
Chris@16:     /*!
Chris@16:      * Default constructor. Creates an empty record that is equivalent to the invalid record handle.
Chris@16:      * The stream capability is not available after construction.
Chris@16:      *
Chris@16:      * \post <tt>!*this == true</tt>
Chris@16:      */
Chris@16:     basic_formatting_ostream() : m_stream(&m_streambuf)
Chris@16:     {
Chris@16:         init_stream();
Chris@16:     }
Chris@16: 
Chris@16:     /*!
Chris@16:      * Initializing constructor. Attaches the string to the constructed stream.
Chris@16:      * The string will be used to store the formatted characters.
Chris@16:      *
Chris@16:      * \post <tt>!*this == false</tt>
Chris@16:      * \param str The string buffer to attach.
Chris@16:      */
Chris@16:     explicit basic_formatting_ostream(string_type& str) :
Chris@16:         m_streambuf(str),
Chris@16:         m_stream(&m_streambuf)
Chris@16:     {
Chris@16:         init_stream();
Chris@16:     }
Chris@16: 
Chris@16:     /*!
Chris@16:      * Destructor. Destroys the record, releases any sinks and attribute values that were involved in processing this record.
Chris@16:      */
Chris@16:     ~basic_formatting_ostream()
Chris@16:     {
Chris@16:         if (m_streambuf.storage())
Chris@16:             flush();
Chris@16:     }
Chris@16: 
Chris@16:     /*!
Chris@16:      * Attaches the stream to the string. The string will be used to store the formatted characters.
Chris@16:      *
Chris@16:      * \param str The string buffer to attach.
Chris@16:      */
Chris@16:     void attach(string_type& str)
Chris@16:     {
Chris@16:         m_streambuf.attach(str);
Chris@16:         m_stream.clear(ostream_type::goodbit);
Chris@16:     }
Chris@16:     /*!
Chris@16:      * Detaches the stream from the string. Any buffered data is flushed to the string.
Chris@16:      */
Chris@16:     void detach()
Chris@16:     {
Chris@16:         m_streambuf.detach();
Chris@16:         m_stream.clear(ostream_type::badbit);
Chris@16:     }
Chris@16: 
Chris@16:     /*!
Chris@16:      * \returns Reference to the attached string. The string must be attached before calling this method.
Chris@16:      */
Chris@16:     string_type const& str() const
Chris@16:     {
Chris@16:         string_type* storage = m_streambuf.storage();
Chris@16:         BOOST_ASSERT(storage != NULL);
Chris@16: 
Chris@16:         m_streambuf.pubsync();
Chris@16: 
Chris@16:         return *storage;
Chris@16:     }
Chris@16: 
Chris@16:     /*!
Chris@16:      * \returns Reference to the wrapped stream
Chris@16:      */
Chris@16:     ostream_type& stream() { return m_stream; }
Chris@16: 
Chris@16:     /*!
Chris@16:      * \returns Reference to the wrapped stream
Chris@16:      */
Chris@16:     ostream_type const& stream() const { return m_stream; }
Chris@16: 
Chris@16:     // std::ios_base method forwarders
Chris@16:     fmtflags flags() const { return m_stream.flags(); }
Chris@16:     fmtflags flags(fmtflags f) { return m_stream.flags(f); }
Chris@16:     fmtflags setf(fmtflags f) { return m_stream.setf(f); }
Chris@16:     fmtflags setf(fmtflags f, fmtflags mask) { return m_stream.setf(f, mask); }
Chris@16:     void unsetf(fmtflags f) { m_stream.unsetf(f); }
Chris@16: 
Chris@16:     std::streamsize precision() const { return m_stream.precision(); }
Chris@16:     std::streamsize precision(std::streamsize p) { return m_stream.precision(p); }
Chris@16: 
Chris@16:     std::streamsize width() const { return m_stream.width(); }
Chris@16:     std::streamsize width(std::streamsize w) { return m_stream.width(w); }
Chris@16: 
Chris@16:     std::locale getloc() const { return m_stream.getloc(); }
Chris@16:     std::locale imbue(std::locale const& loc) { return m_stream.imbue(loc); }
Chris@16: 
Chris@16:     static int xalloc() { return ostream_type::xalloc(); }
Chris@16:     long& iword(int index) { return m_stream.iword(index); }
Chris@16:     void*& pword(int index) { return m_stream.pword(index); }
Chris@16: 
Chris@16:     void register_callback(event_callback fn, int index) { m_stream.register_callback(fn, index); }
Chris@16: 
Chris@16:     static bool sync_with_stdio(bool sync = true) { return ostream_type::sync_with_stdio(sync); }
Chris@16: 
Chris@16:     // std::basic_ios method forwarders
Chris@16:     BOOST_EXPLICIT_OPERATOR_BOOL()
Chris@16:     bool operator! () const { return !m_stream; }
Chris@16: 
Chris@16:     iostate rdstate() const { return m_stream.rdstate(); }
Chris@16:     void clear(iostate state = goodbit) { m_stream.clear(state); }
Chris@16:     void setstate(iostate state) { m_stream.setstate(state); }
Chris@16:     bool good() const { return m_stream.good(); }
Chris@16:     bool eof() const { return m_stream.eof(); }
Chris@16:     bool fail() const { return m_stream.fail(); }
Chris@16:     bool bad() const { return m_stream.bad(); }
Chris@16: 
Chris@16:     iostate exceptions() const { return m_stream.exceptions(); }
Chris@16:     void exceptions(iostate s) { m_stream.exceptions(s); }
Chris@16: 
Chris@16:     ostream_type* tie() const { return m_stream.tie(); }
Chris@16:     ostream_type* tie(ostream_type* strm) { return m_stream.tie(strm); }
Chris@16: 
Chris@16:     streambuf_type* rdbuf() const { return &m_streambuf; }
Chris@16: 
Chris@16:     basic_formatting_ostream& copyfmt(std::basic_ios< char_type, traits_type >& rhs)
Chris@16:     {
Chris@16:         m_stream.copyfmt(rhs);
Chris@16:         return *this;
Chris@16:     }
Chris@16:     basic_formatting_ostream& copyfmt(basic_formatting_ostream& rhs)
Chris@16:     {
Chris@16:         m_stream.copyfmt(rhs.stream());
Chris@16:         return *this;
Chris@16:     }
Chris@16: 
Chris@16:     char_type fill() const { return m_stream.fill(); }
Chris@16:     char_type fill(char_type ch) { return m_stream.fill(ch); }
Chris@16: 
Chris@16:     char narrow(char_type ch, char def) const { return m_stream.narrow(ch, def); }
Chris@16:     char_type widen(char ch) const { return m_stream.widen(ch); }
Chris@16: 
Chris@16:     // std::basic_ostream method forwarders
Chris@16:     basic_formatting_ostream& flush()
Chris@16:     {
Chris@16:         m_stream.flush();
Chris@16:         return *this;
Chris@16:     }
Chris@16: 
Chris@16:     pos_type tellp() { return m_stream.tellp(); }
Chris@16:     basic_formatting_ostream& seekp(pos_type pos)
Chris@16:     {
Chris@16:         m_stream.seekp(pos);
Chris@16:         return *this;
Chris@16:     }
Chris@16:     basic_formatting_ostream& seekp(off_type off, std::ios_base::seekdir dir)
Chris@16:     {
Chris@16:         m_stream.seekp(off, dir);
Chris@16:         return *this;
Chris@16:     }
Chris@16: 
Chris@16:     basic_formatting_ostream& put(char_type c)
Chris@16:     {
Chris@16:         m_stream.put(c);
Chris@16:         return *this;
Chris@16:     }
Chris@16: 
Chris@16:     template< typename OtherCharT >
Chris@16:     typename aux::enable_if_char_type< OtherCharT, basic_formatting_ostream& >::type
Chris@16:     put(OtherCharT c)
Chris@16:     {
Chris@16:         write(&c, 1);
Chris@16:         return *this;
Chris@16:     }
Chris@16: 
Chris@16:     basic_formatting_ostream& write(const char_type* p, std::streamsize size)
Chris@16:     {
Chris@16:         m_stream.write(p, size);
Chris@16:         return *this;
Chris@16:     }
Chris@16: 
Chris@16:     template< typename OtherCharT >
Chris@16:     typename aux::enable_if_char_type< OtherCharT, basic_formatting_ostream& >::type
Chris@16:     write(const OtherCharT* p, std::streamsize size)
Chris@16:     {
Chris@16:         sentry guard(*this);
Chris@16:         if (guard)
Chris@16:         {
Chris@16:             m_stream.flush();
Chris@16: 
Chris@16:             string_type* storage = m_streambuf.storage();
Chris@16:             aux::code_convert(p, static_cast< std::size_t >(size), *storage, m_stream.getloc());
Chris@16:         }
Chris@16: 
Chris@16:         return *this;
Chris@16:     }
Chris@16: 
Chris@16:     basic_formatting_ostream& operator<< (ios_base_manip manip)
Chris@16:     {
Chris@16:         m_stream << manip;
Chris@16:         return *this;
Chris@16:     }
Chris@16:     basic_formatting_ostream& operator<< (basic_ios_manip manip)
Chris@16:     {
Chris@16:         m_stream << manip;
Chris@16:         return *this;
Chris@16:     }
Chris@16:     basic_formatting_ostream& operator<< (stream_manip manip)
Chris@16:     {
Chris@16:         m_stream << manip;
Chris@16:         return *this;
Chris@16:     }
Chris@16: 
Chris@16:     basic_formatting_ostream& operator<< (char c)
Chris@16:     {
Chris@16:         return this->formatted_write(&c, 1);
Chris@16:     }
Chris@16:     basic_formatting_ostream& operator<< (const char* p)
Chris@16:     {
Chris@16:         return this->formatted_write(p, static_cast< std::streamsize >(std::char_traits< char >::length(p)));
Chris@16:     }
Chris@16: 
Chris@16: #if !defined(BOOST_NO_INTRINSIC_WCHAR_T)
Chris@16:     basic_formatting_ostream& operator<< (wchar_t c)
Chris@16:     {
Chris@16:         return this->formatted_write(&c, 1);
Chris@16:     }
Chris@16:     basic_formatting_ostream& operator<< (const wchar_t* p)
Chris@16:     {
Chris@16:         return this->formatted_write(p, static_cast< std::streamsize >(std::char_traits< wchar_t >::length(p)));
Chris@16:     }
Chris@16: #endif
Chris@16: #if !defined(BOOST_NO_CXX11_CHAR16_T)
Chris@16:     basic_formatting_ostream& operator<< (char16_t c)
Chris@16:     {
Chris@16:         return this->formatted_write(&c, 1);
Chris@16:     }
Chris@16:     basic_formatting_ostream& operator<< (const char16_t* p)
Chris@16:     {
Chris@16:         return this->formatted_write(p, static_cast< std::streamsize >(std::char_traits< char16_t >::length(p)));
Chris@16:     }
Chris@16: #endif
Chris@16: #if !defined(BOOST_NO_CXX11_CHAR32_T)
Chris@16:     basic_formatting_ostream& operator<< (char32_t c)
Chris@16:     {
Chris@16:         return this->formatted_write(&c, 1);
Chris@16:     }
Chris@16:     basic_formatting_ostream& operator<< (const char32_t* p)
Chris@16:     {
Chris@16:         return this->formatted_write(p, static_cast< std::streamsize >(std::char_traits< char32_t >::length(p)));
Chris@16:     }
Chris@16: #endif
Chris@16: 
Chris@16:     basic_formatting_ostream& operator<< (bool value)
Chris@16:     {
Chris@16:         m_stream << value;
Chris@16:         return *this;
Chris@16:     }
Chris@16:     basic_formatting_ostream& operator<< (signed char value)
Chris@16:     {
Chris@16:         m_stream << value;
Chris@16:         return *this;
Chris@16:     }
Chris@16:     basic_formatting_ostream& operator<< (unsigned char value)
Chris@16:     {
Chris@16:         m_stream << value;
Chris@16:         return *this;
Chris@16:     }
Chris@16:     basic_formatting_ostream& operator<< (short value)
Chris@16:     {
Chris@16:         m_stream << value;
Chris@16:         return *this;
Chris@16:     }
Chris@16:     basic_formatting_ostream& operator<< (unsigned short value)
Chris@16:     {
Chris@16:         m_stream << value;
Chris@16:         return *this;
Chris@16:     }
Chris@16:     basic_formatting_ostream& operator<< (int value)
Chris@16:     {
Chris@16:         m_stream << value;
Chris@16:         return *this;
Chris@16:     }
Chris@16:     basic_formatting_ostream& operator<< (unsigned int value)
Chris@16:     {
Chris@16:         m_stream << value;
Chris@16:         return *this;
Chris@16:     }
Chris@16:     basic_formatting_ostream& operator<< (long value)
Chris@16:     {
Chris@16:         m_stream << value;
Chris@16:         return *this;
Chris@16:     }
Chris@16:     basic_formatting_ostream& operator<< (unsigned long value)
Chris@16:     {
Chris@16:         m_stream << value;
Chris@16:         return *this;
Chris@16:     }
Chris@16: #if !defined(BOOST_NO_LONG_LONG)
Chris@16:     basic_formatting_ostream& operator<< (long long value)
Chris@16:     {
Chris@16:         m_stream << value;
Chris@16:         return *this;
Chris@16:     }
Chris@16:     basic_formatting_ostream& operator<< (unsigned long long value)
Chris@16:     {
Chris@16:         m_stream << value;
Chris@16:         return *this;
Chris@16:     }
Chris@16: #endif
Chris@16: 
Chris@16:     basic_formatting_ostream& operator<< (float value)
Chris@16:     {
Chris@16:         m_stream << value;
Chris@16:         return *this;
Chris@16:     }
Chris@16:     basic_formatting_ostream& operator<< (double value)
Chris@16:     {
Chris@16:         m_stream << value;
Chris@16:         return *this;
Chris@16:     }
Chris@16:     basic_formatting_ostream& operator<< (long double value)
Chris@16:     {
Chris@16:         m_stream << value;
Chris@16:         return *this;
Chris@16:     }
Chris@16: 
Chris@16:     basic_formatting_ostream& operator<< (const void* value)
Chris@16:     {
Chris@16:         m_stream << value;
Chris@16:         return *this;
Chris@16:     }
Chris@16: 
Chris@16:     basic_formatting_ostream& operator<< (std::basic_streambuf< char_type, traits_type >* buf)
Chris@16:     {
Chris@16:         m_stream << buf;
Chris@16:         return *this;
Chris@16:     }
Chris@16: 
Chris@16:     template< typename OtherCharT, typename OtherTraitsT, typename OtherAllocatorT >
Chris@16:     friend typename aux::enable_if_char_type< OtherCharT, basic_formatting_ostream& >::type
Chris@16:     operator<< (basic_formatting_ostream& strm, std::basic_string< OtherCharT, OtherTraitsT, OtherAllocatorT > const& str)
Chris@16:     {
Chris@16:         return strm.formatted_write(str.c_str(), static_cast< std::streamsize >(str.size()));
Chris@16:     }
Chris@16: 
Chris@16:     template< typename OtherCharT, typename OtherTraitsT >
Chris@16:     friend typename aux::enable_if_char_type< OtherCharT, basic_formatting_ostream& >::type
Chris@16:     operator<< (basic_formatting_ostream& strm, basic_string_literal< OtherCharT, OtherTraitsT > const& str)
Chris@16:     {
Chris@16:         return strm.formatted_write(str.c_str(), static_cast< std::streamsize >(str.size()));
Chris@16:     }
Chris@16: 
Chris@16:     template< typename OtherCharT, typename OtherTraitsT >
Chris@16:     friend typename aux::enable_if_char_type< OtherCharT, basic_formatting_ostream& >::type
Chris@16:     operator<< (basic_formatting_ostream& strm, basic_string_ref< OtherCharT, OtherTraitsT > const& str)
Chris@16:     {
Chris@16:         return strm.formatted_write(str.data(), static_cast< std::streamsize >(str.size()));
Chris@16:     }
Chris@16: 
Chris@16: private:
Chris@16:     void init_stream()
Chris@16:     {
Chris@16:         m_stream.clear(m_streambuf.storage() ? ostream_type::goodbit : ostream_type::badbit);
Chris@16:         m_stream.flags
Chris@16:         (
Chris@16:             ostream_type::dec |
Chris@16:             ostream_type::skipws |
Chris@16:             ostream_type::boolalpha // this differs from the default stream flags but makes logs look better
Chris@16:         );
Chris@16:         m_stream.width(0);
Chris@16:         m_stream.precision(6);
Chris@16:         m_stream.fill(static_cast< char_type >(' '));
Chris@16:     }
Chris@16: 
Chris@16:     basic_formatting_ostream& formatted_write(const char_type* p, std::streamsize size)
Chris@16:     {
Chris@16:         sentry guard(*this);
Chris@16:         if (guard)
Chris@16:         {
Chris@16:             m_stream.flush();
Chris@16: 
Chris@16:             if (m_stream.width() <= size)
Chris@16:                 m_streambuf.storage()->append(p, static_cast< std::size_t >(size));
Chris@16:             else
Chris@16:                 this->aligned_write(p, size);
Chris@16: 
Chris@16:             m_stream.width(0);
Chris@16:         }
Chris@16: 
Chris@16:         return *this;
Chris@16:     }
Chris@16: 
Chris@16:     template< typename OtherCharT >
Chris@16:     basic_formatting_ostream& formatted_write(const OtherCharT* p, std::streamsize size)
Chris@16:     {
Chris@16:         sentry guard(*this);
Chris@16:         if (guard)
Chris@16:         {
Chris@16:             m_stream.flush();
Chris@16: 
Chris@16:             if (m_stream.width() <= size)
Chris@16:                 aux::code_convert(p, static_cast< std::size_t >(size), *m_streambuf.storage(), m_stream.getloc());
Chris@16:             else
Chris@16:                 this->aligned_write(p, size);
Chris@16: 
Chris@16:             m_stream.width(0);
Chris@16:         }
Chris@16: 
Chris@16:         return *this;
Chris@16:     }
Chris@16: 
Chris@16:     void aligned_write(const char_type* p, std::streamsize size);
Chris@16: 
Chris@16:     template< typename OtherCharT >
Chris@16:     void aligned_write(const OtherCharT* p, std::streamsize size);
Chris@16: 
Chris@16:     //! Copy constructor (closed)
Chris@16:     BOOST_DELETED_FUNCTION(basic_formatting_ostream(basic_formatting_ostream const& that))
Chris@16:     //! Assignment (closed)
Chris@16:     BOOST_DELETED_FUNCTION(basic_formatting_ostream& operator= (basic_formatting_ostream const& that))
Chris@16: };
Chris@16: 
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::boolalpha;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::dec;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fixed;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::hex;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::internal;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::left;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::oct;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::right;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::scientific;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::showbase;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::showpoint;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::skipws;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::unitbuf;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::uppercase;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::adjustfield;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::basefield;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::floatfield;
Chris@16: 
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::iostate basic_formatting_ostream< CharT, TraitsT, AllocatorT >::badbit;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::iostate basic_formatting_ostream< CharT, TraitsT, AllocatorT >::eofbit;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::iostate basic_formatting_ostream< CharT, TraitsT, AllocatorT >::failbit;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::iostate basic_formatting_ostream< CharT, TraitsT, AllocatorT >::goodbit;
Chris@16: 
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::openmode basic_formatting_ostream< CharT, TraitsT, AllocatorT >::app;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::openmode basic_formatting_ostream< CharT, TraitsT, AllocatorT >::ate;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::openmode basic_formatting_ostream< CharT, TraitsT, AllocatorT >::binary;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::openmode basic_formatting_ostream< CharT, TraitsT, AllocatorT >::in;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::openmode basic_formatting_ostream< CharT, TraitsT, AllocatorT >::out;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::openmode basic_formatting_ostream< CharT, TraitsT, AllocatorT >::trunc;
Chris@16: 
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::seekdir basic_formatting_ostream< CharT, TraitsT, AllocatorT >::beg;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::seekdir basic_formatting_ostream< CharT, TraitsT, AllocatorT >::cur;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::seekdir basic_formatting_ostream< CharT, TraitsT, AllocatorT >::end;
Chris@16: 
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::event basic_formatting_ostream< CharT, TraitsT, AllocatorT >::erase_event;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::event basic_formatting_ostream< CharT, TraitsT, AllocatorT >::imbue_event;
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::event basic_formatting_ostream< CharT, TraitsT, AllocatorT >::copyfmt_event;
Chris@16: 
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: void basic_formatting_ostream< CharT, TraitsT, AllocatorT >::aligned_write(const char_type* p, std::streamsize size)
Chris@16: {
Chris@16:     string_type* const storage = m_streambuf.storage();
Chris@16:     typename string_type::size_type const alignment_size =
Chris@16:         static_cast< typename string_type::size_type >(m_stream.width() - size);
Chris@16:     const bool align_left = (m_stream.flags() & ostream_type::adjustfield) == ostream_type::left;
Chris@16:     if (align_left)
Chris@16:     {
Chris@16:         storage->append(p, static_cast< std::size_t >(size));
Chris@16:         storage->append(alignment_size, m_stream.fill());
Chris@16:     }
Chris@16:     else
Chris@16:     {
Chris@16:         storage->append(alignment_size, m_stream.fill());
Chris@16:         storage->append(p, static_cast< std::size_t >(size));
Chris@16:     }
Chris@16: }
Chris@16: 
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT >
Chris@16: template< typename OtherCharT >
Chris@16: void basic_formatting_ostream< CharT, TraitsT, AllocatorT >::aligned_write(const OtherCharT* p, std::streamsize size)
Chris@16: {
Chris@16:     string_type* const storage = m_streambuf.storage();
Chris@16:     typename string_type::size_type const alignment_size =
Chris@16:         static_cast< typename string_type::size_type >(m_stream.width() - size);
Chris@16:     const bool align_left = (m_stream.flags() & ostream_type::adjustfield) == ostream_type::left;
Chris@16:     if (align_left)
Chris@16:     {
Chris@16:         aux::code_convert(p, static_cast< std::size_t >(size), *storage, m_stream.getloc());
Chris@16:         storage->append(alignment_size, m_stream.fill());
Chris@16:     }
Chris@16:     else
Chris@16:     {
Chris@16:         storage->append(alignment_size, m_stream.fill());
Chris@16:         aux::code_convert(p, static_cast< std::size_t >(size), *storage, m_stream.getloc());
Chris@16:     }
Chris@16: }
Chris@16: 
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT, typename T >
Chris@16: inline basic_formatting_ostream< CharT, TraitsT, AllocatorT >&
Chris@16: operator<< (basic_formatting_ostream< CharT, TraitsT, AllocatorT >& strm, T const& value)
Chris@16: {
Chris@16:     strm.stream() << value;
Chris@16:     return strm;
Chris@16: }
Chris@16: 
Chris@101: template< typename CharT, typename TraitsT, typename AllocatorT, typename T >
Chris@101: inline basic_formatting_ostream< CharT, TraitsT, AllocatorT >&
Chris@101: operator<< (basic_formatting_ostream< CharT, TraitsT, AllocatorT >& strm, T& value)
Chris@101: {
Chris@101:     strm.stream() << value;
Chris@101:     return strm;
Chris@101: }
Chris@101: 
Chris@101: #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
Chris@101: 
Chris@101: template< typename CharT, typename TraitsT, typename AllocatorT, typename T >
Chris@101: inline basic_formatting_ostream< CharT, TraitsT, AllocatorT >&
Chris@101: operator<< (basic_formatting_ostream< CharT, TraitsT, AllocatorT >&& strm, T const& value)
Chris@101: {
Chris@101:     static_cast< basic_formatting_ostream< CharT, TraitsT, AllocatorT >& >(strm) << value;
Chris@101:     return strm;
Chris@101: }
Chris@101: 
Chris@101: template< typename CharT, typename TraitsT, typename AllocatorT, typename T >
Chris@101: inline basic_formatting_ostream< CharT, TraitsT, AllocatorT >&
Chris@101: operator<< (basic_formatting_ostream< CharT, TraitsT, AllocatorT >&& strm, T& value)
Chris@101: {
Chris@101:     static_cast< basic_formatting_ostream< CharT, TraitsT, AllocatorT >& >(strm) << value;
Chris@101:     return strm;
Chris@101: }
Chris@101: 
Chris@101: #endif // !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
Chris@101: 
Chris@16: BOOST_LOG_CLOSE_NAMESPACE // namespace log
Chris@16: 
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/log/detail/footer.hpp>
Chris@16: 
Chris@16: #endif // BOOST_LOG_UTILITY_FORMATTING_OSTREAM_HPP_INCLUDED_