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Full Discussion: Assign NULL to stream objects
Top Forums Programming Assign NULL to stream objects Post 302379279 by forstudy3 on Thursday 10th of December 2009 07:05:58 AM
Old 12-10-2009
Question Assign NULL to stream objects
Hi,
I am trying to initialize fstream objects to NULL but its throwing an error.Could somebody tell me better way to do this.
I have code in C++ & compiling it using g++ compiler on a Linux box.


Code:
 
ifstream file;
file=NULL;

error

Code:
 
omega.cpp:38: error: no match for 'operator=' in '((OMEGA*)this)->OMEGA::file = 0'
/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> >&)

 

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LEARN ABOUT DEBIAN

shevek_rostring

shevek::rostring(3)					     Library Functions Manual					       shevek::rostring(3)

NAME

       shevek::rostring -

       shevek::rostring is identical to shevek::ostring, but it uses std::string instead of Glib::ustring.

SYNOPSIS

       #include <iostring.hh>

   Public Member Functions
       operator std::string () const
	   Use the result as a string.
       std::string operator+ (std::string const &that) const
	   Use the result as a string.
       rostring (std::string const &fmt)
	   Create a string with a constant format.
       template<typename T1 > rostring (std::string const &fmt, T1 const &a1)
	   Create a string with one argument.
       template<typename T1 , typename T2 > rostring (std::string const &fmt, T1 const &a1, T2 const &a2)
	   Create a string with two arguments.
       template<typename T1 , typename T2 , typename T3 > rostring (std::string const &fmt, T1 const &a1, T2 const &a2, T3 const &a3)
	   Create a string with three arguments.
       template<typename T1 , typename T2 , typename T3 , typename T4 > rostring (std::string const &fmt, T1 const &a1, T2 const &a2, T3 const
	   &a3, T4 const &a4)
	   Create a string with four arguments.
       template<typename T1 , typename T2 , typename T3 , typename T4 , typename T5 > rostring (std::string const &fmt, T1 const &a1, T2 const
	   &a2, T3 const &a3, T4 const &a4, T5 const &a5)
	   Create a string with five arguments.
       template<typename T1 , typename T2 , typename T3 , typename T4 , typename T5 , typename T6 > rostring (std::string const &fmt, T1 const
	   &a1, T2 const &a2, T3 const &a3, T4 const &a4, T5 const &a5, T6 const &a6)
	   Create a string with six arguments.
       template<typename T1 , typename T2 , typename T3 , typename T4 , typename T5 , typename T6 , typename T7 > rostring (std::string const
	   &fmt, T1 const &a1, T2 const &a2, T3 const &a3, T4 const &a4, T5 const &a5, T6 const &a6, T7 const &a7)
	   Create a string with seven arguments.
       template<typename T1 , typename T2 , typename T3 , typename T4 , typename T5 , typename T6 , typename T7 , typename T8 > rostring
	   (std::string const &fmt, T1 const &a1, T2 const &a2, T3 const &a3, T4 const &a4, T5 const &a5, T6 const &a6, T7 const &a7, T8 const
	   &a8)
	   Create a string with eight arguments.
       template<typename T1 , typename T2 , typename T3 , typename T4 , typename T5 , typename T6 , typename T7 , typename T8 , typename T9 >
	   rostring (std::string const &fmt, T1 const &a1, T2 const &a2, T3 const &a3, T4 const &a4, T5 const &a5, T6 const &a6, T7 const &a7, T8
	   const &a8, T9 const &a9)
	   Create a string with nine arguments.

   Friends
       std::ostream & operator<< (std::ostream &s, rostring const &o)
	   Send the result to an ostream.

Detailed Description
       shevek::rostring is identical to shevek::ostring, but it uses std::string instead of Glib::ustring.

Author
       Generated automatically by Doxygen for libshevek from the source code.

libshevek							  Fri May 11 2012					       shevek::rostring(3)
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