std::subtract_with_carry_engine<UIntType,w,s,r>::seed
From cppreference.net
void seed( result_type value = 0u );
|
(1) | (since C++11) |
template< class SeedSeq >
void seed( SeedSeq& seq );
|
(2) | (since C++11) |
Sets the state of the random-number engine.
1) Right after the state is set,
*this == std::subtract_with_carry_engine(value) is true.2) Right after the state is set,
*this == std::subtract_with_carry_engine(seq) is true.Parameters
| value | - | seed value to use to set the state |
| seq | - | seed sequence to use to set the state |
Exceptions
2) If
SeedSeq is not std::seed_seq, throws the exceptions thrown by the seq.generate call.Complexity
1) Same as
std::subtract_with_carry_engine(value).2) Same as
std::subtract_with_carry_engine(seq).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 2181 | C++11 | overload (2) would not throw even if the seq.generate call throws
|
propagates the exception |
| LWG 3809 | C++11 | the default argument of value was default_seed
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changed to 0u
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See also
| constructs the engine (public member function) |