template< class CharT, class Traits, class Engine, size_t p, size_t r > std::basic_ostream<CharT,Traits>& operator<<( std::basic_ostream<CharT,Traits>& ost, const std::discard_block_engine<Engine,p,r>& e ); | (1) | (since C++11) |
template< class CharT, class Traits, class Engine, size_t p, size_t r > std::basic_istream<CharT,Traits>& operator>>( std::basic_istream<CharT,Traits>& ist, std::discard_block_engine<Engine,p,r>& e ); | (2) | (since C++11) |
1) Serializes the internal state of the pseudo-random number engine adaptor as a sequence of decimal numbers separated by one or more spaces, and inserts it to the stream
ost
. The fill character and the formatting flags of the stream are ignored and unaffected. 2) Restores the internal state of the pseudo-random number engine adaptor
e
from the serialized representation, which was created by an earlier call to operator<<
using a stream with the same imbued locale and the same CharT
and Traits
. If the input cannot be deserialized, e
is left unchanged and failbit
is raised on ist
If a textual representation is written using os << x
and that representation is restored into the same or a different object y
of the same type using is >> y
, then x==y
.
Parameters
ost | - | output stream to insert the data to |
ist | - | input stream to extract the data from |
e | - | engine adaptor to serialize or restore |
Return value
1)
ost
2)
ist
Complexity
Exceptions
1) (none)
2) May throw
std::ios::failure
when setting failbit
Please login to continue.