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Full Discussion: Error in opening a file C++
Top Forums Programming Error in opening a file C++ Post 302379526 by forstudy3 on Friday 11th of December 2009 02:48:20 AM
Old 12-11-2009
Some part of the Error is & same follows for remaining lines as well.

Code:
 
ex.cpp: In function `int main()':
ex.cpp:26: error: no match for 'operator=' in 'INPUT1 = OpenFile(std::string, std::_Ios_Openmode)(std::operator|( _S_in,  _S_bin))'
/usr/lib/gcc/i386-redhat-linux/3.4.3/../../../../include/c++/3.4.3/iosfwd:90: note: candidates are: std::basic_ifstream<char, std::char_traits<char> >& std::basic_ifstream<char, std::char_traits<char> >::operator=(const std::basic_ifstream<char, std::char_traits<char> >&)
ex.cpp: In copy constructor `std::basic_ios<char, std::char_traits<char> >::basic_ios(const std::basic_ios<char, std::char_traits<char> >&)':
/usr/lib/gcc/i386-redhat-linux/3.4.3/../../../../include/c++/3.4.3/bits/ios_base.h:781: error: `std::ios_base::ios_base(const std::ios_base&)' is private

Compiling on a Linux box using g++ compiler.
 

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LEARN ABOUT CENTOS

std::basic_ostream_sentry

std::basic_ostream< _CharT, _Traits >::sentry(3)	     Library Functions Manual		  std::basic_ostream< _CharT, _Traits >::sentry(3)

NAME

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

SYNOPSIS

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

Detailed Description
   template<typename _CharT, typename _Traits = char_traits<_CharT>>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 400 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.

       References std::ios_base::failbit, std::basic_ios< _CharT, _Traits >::good(), std::basic_ios< _CharT, _Traits >::setstate(), and
       std::basic_ios< _CharT, _Traits >::tie().

   template<typename _CharT, typename _Traits = char_traits<_CharT>> 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 stream.

       Definition at line 428 of file ostream.

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

Member Function Documentation
   template<typename _CharT, typename _Traits = char_traits<_CharT>> 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 449 of file ostream.

Author
       Generated automatically by Doxygen for libstdc++ from the source code.

libstdc++							  Tue Jun 10 2014		  std::basic_ostream< _CharT, _Traits >::sentry(3)
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