std::independent_bits_engine| Member functions |
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| Characteristics |
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| Non-member functions |
(C++11)(C++11)(until C++20) |
operator<<operator>> (C++11)(C++11) |
| (1) | (since C++11) |
| (2) | (since C++11) |
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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 streamost. 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 adaptore from the serialized representation, which was created by an earlier call tooperator<< using a stream with the same imbued locale and the sameCharT andTraits. If the input cannot be deserialized,e is left unchanged andfailbit is raised onist.
These function templates are not visible to ordinaryunqualified orqualified lookup, and can only be found byargument-dependent lookup when std::independent_bits_engine<Engine, w, UIntType> is an associated class of the arguments.
If a textual representation is written usingos<< x and that representation is restored into the same or a different objecty of the same type usingis>> y, thenx== y.
| This section is incomplete
Reason: standard also defines what the textual representation consists of |
[edit]Parameters
| ost | - | output stream to insert the data to |
| ist | - | input stream to extract the data from |
| e | - | engine adaptor to serialize or restore |
[edit]Return value
1)ost
2)ist
[edit]Complexity
| This section is incomplete |
[edit]Exceptions
1) May throw implementation-defined exceptions.
[edit]Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
| DR | Applied to | Behavior as published | Correct behavior |
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| LWG 3519 | C++11 | the form of insertion and extraction operators were unspecified | specified to be hidden friends |
