if u have seen the iostream file then it begins like this:-
#include <bits/c++config.h>
#include <ostream>
#include <istream>
*
*
*namespace std *
{
/**
* @name Standard Stream Objects
*
* The <iostream> header declares the eight <em>standard stream
* objects</em>. For other declarations, see
* http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#10 and the
* @link s27_2_iosfwd I/O forward declarations @endlink
*
* They are required by default to cooperate with the global C library's
* @c FILE streams, and to be available during program startup and
* termination. For more information, see the HOWTO linked to above.
*/
//@{
extern istream cin; ///< Linked to standard input
extern ostream cout; ///< Linked to standard output
extern ostream cerr; ///< Linked to standard error (unbuffered)
The new implementation is done in C# format. So we use the term "using" to
include the iostream "package".
On Tue, Oct 9, 2012 at 12:01 AM, rahul sharma <[email protected]>wrote:
> using name space std
>
> Please explain about this
> thnx
>
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