Provided by: libstdc++6-4.5-doc_4.5.3-12ubuntu2_all bug


       std::basic_ostream< _CharT, _Traits >::sentry -


   Public Member Functions
       sentry (basic_ostream< _CharT, _Traits > &__os)
       ~sentry ()
       operator bool () const

Detailed Description

   template<typename _CharT, typename _Traits>class std::basic_ostream< _CharT, _Traits >::sentry
       Performs setup work for output streams.

       Objects of this class are created before all of the standard inserters are run. It is
       responsible for exception-safe prefix and suffix operations.

       Definition at line 377 of file ostream.

Constructor & Destructor Documentation

   template<typename _CharT, typename _Traits> std::basic_ostream< _CharT, _Traits
       >::sentry::sentry (basic_ostream< _CharT, _Traits > &__os) [explicit]
       The constructor performs preparatory work. Parameters:
           os The output stream to guard.

       If the stream state is good (os.good() is true), then if the stream is tied to another
       output stream, is.tie()->flush() is called to synchronize the output sequences.

       If the stream state is still good, then the sentry state becomes true (okay).

       Definition at line 47 of file ostream.tcc.

   template<typename _CharT, typename _Traits> std::basic_ostream< _CharT, _Traits
       >::sentry::~sentry () [inline]
       Possibly flushes the stream. If ios_base::unitbuf is set in os.flags(), and
       std::uncaught_exception() is true, the sentry destructor calls flush() on the output

       Definition at line 405 of file ostream.

       References std::uncaught_exception(), and std::unitbuf().

Member Function Documentation

   template<typename _CharT, typename _Traits> std::basic_ostream< _CharT, _Traits
       >::sentry::operator bool () const [inline, explicit]
       Quick status checking. Returns:
           The sentry state.

       For ease of use, sentries may be converted to booleans. The return value is that of the
       sentry state (true == okay).

       Definition at line 426 of file ostream.


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libstdc++                                Mon Astd::basic_ostream< _CharT, _Traits >::sentry(3cxx)