operator<<,>>(std::linear_congruential_engine)
template< class CharT, class Traits, class UIntType, UIntType a, UIntType c, UIntType m > std::basic_ostream<CharT,Traits>& operator<<( std::basic_ostream<CharT,Traits>& ost, const std::linear_congruential_engine<UIntType,a,c,m>& e ); | (1) | (since C++11) |
template< class CharT, class Traits, class UIntType, UIntType a, UIntType c, UIntType m > std::basic_istream<CharT,Traits>& operator>>( std::basic_istream<CharT,Traits>& ist, std::linear_congruential_engine<UIntType,a,c,m>& e ); | (2) | (since C++11) |
1) Serializes the internal state of the pseudo-random number engine
e
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
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
.
The textual representation is written with os.fmtflags
set to ios_base::dec
|ios_base::left
and the fill character set to the space character. The textual representation of the engine's internal state is a set of decimal numbers separated by spaces.
Parameters
ost | - | output stream to insert the data to |
ist | - | input stream to extract the data from |
e | - | pseudo-random number engine |
Return value
1)
ost
2)
ist
Complexity
Exceptions
1) (none)
2) May throw
std::ios::failure
when setting failbit
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
http://en.cppreference.com/w/cpp/numeric/random/linear_congruential_engine/operator_ltltgtgt