diff -r 000000000000 -r 044383f39525 imgtools/imglib/boostlibrary/boost/io/ios_state.hpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/imgtools/imglib/boostlibrary/boost/io/ios_state.hpp Tue Oct 27 16:36:35 2009 +0000 @@ -0,0 +1,431 @@ +// Boost io/ios_state.hpp header file --------------------------------------// + +// Copyright 2002, 2005 Daryle Walker. Use, modification, and distribution +// are subject to the Boost Software License, Version 1.0. (See accompanying +// file LICENSE_1_0.txt or a copy at .) + +// See for the library's home page. + +#ifndef BOOST_IO_IOS_STATE_HPP +#define BOOST_IO_IOS_STATE_HPP + +#include // self include +#include + +#include // for std::ios_base, std::basic_ios, etc. +#ifndef BOOST_NO_STD_LOCALE +#include // for std::locale +#endif +#include // for std::basic_ostream +#include // for std::basic_streambuf +#include // for std::char_traits + + +namespace boost +{ +namespace io +{ + + +// Basic stream state saver class declarations -----------------------------// + +class ios_flags_saver +{ +public: + typedef ::std::ios_base state_type; + typedef ::std::ios_base::fmtflags aspect_type; + + explicit ios_flags_saver( state_type &s ) + : s_save_( s ), a_save_( s.flags() ) + {} + ios_flags_saver( state_type &s, aspect_type const &a ) + : s_save_( s ), a_save_( s.flags(a) ) + {} + ~ios_flags_saver() + { this->restore(); } + + void restore() + { s_save_.flags( a_save_ ); } + +private: + state_type & s_save_; + aspect_type const a_save_; + + ios_flags_saver& operator=(const ios_flags_saver&); +}; + +class ios_precision_saver +{ +public: + typedef ::std::ios_base state_type; + typedef ::std::streamsize aspect_type; + + explicit ios_precision_saver( state_type &s ) + : s_save_( s ), a_save_( s.precision() ) + {} + ios_precision_saver( state_type &s, aspect_type const &a ) + : s_save_( s ), a_save_( s.precision(a) ) + {} + ~ios_precision_saver() + { this->restore(); } + + void restore() + { s_save_.precision( a_save_ ); } + +private: + state_type & s_save_; + aspect_type const a_save_; + + ios_precision_saver& operator=(const ios_precision_saver&); +}; + +class ios_width_saver +{ +public: + typedef ::std::ios_base state_type; + typedef ::std::streamsize aspect_type; + + explicit ios_width_saver( state_type &s ) + : s_save_( s ), a_save_( s.width() ) + {} + ios_width_saver( state_type &s, aspect_type const &a ) + : s_save_( s ), a_save_( s.width(a) ) + {} + ~ios_width_saver() + { this->restore(); } + + void restore() + { s_save_.width( a_save_ ); } + +private: + state_type & s_save_; + aspect_type const a_save_; + ios_width_saver& operator=(const ios_width_saver&); +}; + + +// Advanced stream state saver class template declarations -----------------// + +template < typename Ch, class Tr > +class basic_ios_iostate_saver +{ +public: + typedef ::std::basic_ios state_type; + typedef ::std::ios_base::iostate aspect_type; + + explicit basic_ios_iostate_saver( state_type &s ) + : s_save_( s ), a_save_( s.rdstate() ) + {} + basic_ios_iostate_saver( state_type &s, aspect_type const &a ) + : s_save_( s ), a_save_( s.rdstate() ) + { s.clear(a); } + ~basic_ios_iostate_saver() + { this->restore(); } + + void restore() + { s_save_.clear( a_save_ ); } + +private: + state_type & s_save_; + aspect_type const a_save_; +}; + +template < typename Ch, class Tr > +class basic_ios_exception_saver +{ +public: + typedef ::std::basic_ios state_type; + typedef ::std::ios_base::iostate aspect_type; + + explicit basic_ios_exception_saver( state_type &s ) + : s_save_( s ), a_save_( s.exceptions() ) + {} +#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x582)) + basic_ios_exception_saver( state_type &s, aspect_type a ) +#else + basic_ios_exception_saver( state_type &s, aspect_type const &a ) +#endif + : s_save_( s ), a_save_( s.exceptions() ) + { s.exceptions(a); } + ~basic_ios_exception_saver() + { this->restore(); } + + void restore() + { s_save_.exceptions( a_save_ ); } + +private: + state_type & s_save_; + aspect_type const a_save_; +}; + +template < typename Ch, class Tr > +class basic_ios_tie_saver +{ +public: + typedef ::std::basic_ios state_type; + typedef ::std::basic_ostream * aspect_type; + + explicit basic_ios_tie_saver( state_type &s ) + : s_save_( s ), a_save_( s.tie() ) + {} + basic_ios_tie_saver( state_type &s, aspect_type const &a ) + : s_save_( s ), a_save_( s.tie(a) ) + {} + ~basic_ios_tie_saver() + { this->restore(); } + + void restore() + { s_save_.tie( a_save_ ); } + +private: + state_type & s_save_; + aspect_type const a_save_; +}; + +template < typename Ch, class Tr > +class basic_ios_rdbuf_saver +{ +public: + typedef ::std::basic_ios state_type; + typedef ::std::basic_streambuf * aspect_type; + + explicit basic_ios_rdbuf_saver( state_type &s ) + : s_save_( s ), a_save_( s.rdbuf() ) + {} + basic_ios_rdbuf_saver( state_type &s, aspect_type const &a ) + : s_save_( s ), a_save_( s.rdbuf(a) ) + {} + ~basic_ios_rdbuf_saver() + { this->restore(); } + + void restore() + { s_save_.rdbuf( a_save_ ); } + +private: + state_type & s_save_; + aspect_type const a_save_; +}; + +template < typename Ch, class Tr > +class basic_ios_fill_saver +{ +public: + typedef ::std::basic_ios state_type; + typedef typename state_type::char_type aspect_type; + + explicit basic_ios_fill_saver( state_type &s ) + : s_save_( s ), a_save_( s.fill() ) + {} + basic_ios_fill_saver( state_type &s, aspect_type const &a ) + : s_save_( s ), a_save_( s.fill(a) ) + {} + ~basic_ios_fill_saver() + { this->restore(); } + + void restore() + { s_save_.fill( a_save_ ); } + +private: + state_type & s_save_; + aspect_type const a_save_; +}; + +#ifndef BOOST_NO_STD_LOCALE +template < typename Ch, class Tr > +class basic_ios_locale_saver +{ +public: + typedef ::std::basic_ios state_type; + typedef ::std::locale aspect_type; + + explicit basic_ios_locale_saver( state_type &s ) + : s_save_( s ), a_save_( s.getloc() ) + {} + basic_ios_locale_saver( state_type &s, aspect_type const &a ) + : s_save_( s ), a_save_( s.imbue(a) ) + {} + ~basic_ios_locale_saver() + { this->restore(); } + + void restore() + { s_save_.imbue( a_save_ ); } + +private: + state_type & s_save_; + aspect_type const a_save_; +}; +#endif + + +// User-defined stream state saver class declarations ----------------------// + +class ios_iword_saver +{ +public: + typedef ::std::ios_base state_type; + typedef int index_type; + typedef long aspect_type; + + explicit ios_iword_saver( state_type &s, index_type i ) + : s_save_( s ), a_save_( s.iword(i) ), i_save_( i ) + {} + ios_iword_saver( state_type &s, index_type i, aspect_type const &a ) + : s_save_( s ), a_save_( s.iword(i) ), i_save_( i ) + { s.iword(i) = a; } + ~ios_iword_saver() + { this->restore(); } + + void restore() + { s_save_.iword( i_save_ ) = a_save_; } + +private: + state_type & s_save_; + aspect_type const a_save_; + index_type const i_save_; + + ios_iword_saver& operator=(const ios_iword_saver&); +}; + +class ios_pword_saver +{ +public: + typedef ::std::ios_base state_type; + typedef int index_type; + typedef void * aspect_type; + + explicit ios_pword_saver( state_type &s, index_type i ) + : s_save_( s ), a_save_( s.pword(i) ), i_save_( i ) + {} + ios_pword_saver( state_type &s, index_type i, aspect_type const &a ) + : s_save_( s ), a_save_( s.pword(i) ), i_save_( i ) + { s.pword(i) = a; } + ~ios_pword_saver() + { this->restore(); } + + void restore() + { s_save_.pword( i_save_ ) = a_save_; } + +private: + state_type & s_save_; + aspect_type const a_save_; + index_type const i_save_; + + ios_pword_saver operator=(const ios_pword_saver&); +}; + + +// Combined stream state saver class (template) declarations ---------------// + +class ios_base_all_saver +{ +public: + typedef ::std::ios_base state_type; + + explicit ios_base_all_saver( state_type &s ) + : s_save_( s ), a1_save_( s.flags() ), a2_save_( s.precision() ) + , a3_save_( s.width() ) + {} + + ~ios_base_all_saver() + { this->restore(); } + + void restore() + { + s_save_.width( a3_save_ ); + s_save_.precision( a2_save_ ); + s_save_.flags( a1_save_ ); + } + +private: + state_type & s_save_; + state_type::fmtflags const a1_save_; + ::std::streamsize const a2_save_; + ::std::streamsize const a3_save_; + + ios_base_all_saver& operator=(const ios_base_all_saver&); +}; + +template < typename Ch, class Tr > +class basic_ios_all_saver +{ +public: + typedef ::std::basic_ios state_type; + + explicit basic_ios_all_saver( state_type &s ) + : s_save_( s ), a1_save_( s.flags() ), a2_save_( s.precision() ) + , a3_save_( s.width() ), a4_save_( s.rdstate() ) + , a5_save_( s.exceptions() ), a6_save_( s.tie() ) + , a7_save_( s.rdbuf() ), a8_save_( s.fill() ) + #ifndef BOOST_NO_STD_LOCALE + , a9_save_( s.getloc() ) + #endif + {} + + ~basic_ios_all_saver() + { this->restore(); } + + void restore() + { + #ifndef BOOST_NO_STD_LOCALE + s_save_.imbue( a9_save_ ); + #endif + s_save_.fill( a8_save_ ); + s_save_.rdbuf( a7_save_ ); + s_save_.tie( a6_save_ ); + s_save_.exceptions( a5_save_ ); + s_save_.clear( a4_save_ ); + s_save_.width( a3_save_ ); + s_save_.precision( a2_save_ ); + s_save_.flags( a1_save_ ); + } + +private: + state_type & s_save_; + typename state_type::fmtflags const a1_save_; + ::std::streamsize const a2_save_; + ::std::streamsize const a3_save_; + typename state_type::iostate const a4_save_; + typename state_type::iostate const a5_save_; + ::std::basic_ostream * const a6_save_; + ::std::basic_streambuf * const a7_save_; + typename state_type::char_type const a8_save_; + #ifndef BOOST_NO_STD_LOCALE + ::std::locale const a9_save_; + #endif +}; + +class ios_all_word_saver +{ +public: + typedef ::std::ios_base state_type; + typedef int index_type; + + ios_all_word_saver( state_type &s, index_type i ) + : s_save_( s ), i_save_( i ), a1_save_( s.iword(i) ) + , a2_save_( s.pword(i) ) + {} + + ~ios_all_word_saver() + { this->restore(); } + + void restore() + { + s_save_.pword( i_save_ ) = a2_save_; + s_save_.iword( i_save_ ) = a1_save_; + } + +private: + state_type & s_save_; + index_type const i_save_; + long const a1_save_; + void * const a2_save_; + + ios_all_word_saver& operator=(const ios_all_word_saver&); +}; + + +} // namespace io +} // namespace boost + + +#endif // BOOST_IO_IOS_STATE_HPP