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operator<<,>>(std::{{{1}}})

من cppreference.com
 
 
 
 
template< class CharT, class Traits, class ResultType >

std::basic_ostream<CharT,Traits>& operator<<( std::basic_ostream<CharT,Traits>& ost,

                                              const {{{1}}}& d );
(1)
template< class CharT, class Traits, class ResultType >

std::basic_istream<CharT,Traits>& operator>>( std::basic_istream<CharT,Traits>& ist,

                                              {{{1}}}& d );
(2)

Performs stream input and output operations on pseudo-random number distribution ‎d‎.

1) Writes a textual representation of the distribution parameters and internal state to ‎ost‎ as textual representation. The formatting flags and fill character of ‎ost‎ are unchanged.
2) Restores the distribution parameters and internal state with data read from ‎ist‎. The formatting flags of ‎ist‎ are unchanged. The data must have been written using a stream with the same locale, ‎CharT‎ and ‎Traits‎ template parameters, otherwise the behavior is undefined. If bad input is encountered, ist.setstate(std::ios::failbit) is called, which may throw std::ios_base::failure‎. ‎d‎ is unchanged in that case.

[تعديل] Parameters

ost - output stream to insert the data to
ist - input stream to extract the data from
d - pseudo-random number distribution

[تعديل] Return value

1) ‎ost‎
2) ‎ist‎

[تعديل] Exceptions

1) (none)
2) may throw std::ios_base::failure‎ on bad input.