operator<<,>>(std::subtract_with_carry_engine)
template< class CharT, class Traits > friend std::basic_ostream<CharT,Traits>& |
(1) | (since C++11) |
template< class CharT, class Traits > friend std::basic_istream<CharT,Traits>& |
(2) | (since C++11) |
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.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
.These function templates are not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when std::subtract_with_carry_engine<UIntType,w,s,r>
is an associated class of the arguments.
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
ost
ist
Complexity
This section is incomplete |
Exceptions
Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
DR | Applied to | Behavior as published | Correct behavior |
---|---|---|---|
LWG 3519 | C++11 | the form of insertion and extraction operators were unspecified | specified to be hidden friends |