std::exponential_distribution<RealType>::exponential_distribution
< cpp | numeric | random | exponential distribution
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exponential_distribution() : exponential_distribution(1.0) {}
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(1) | (since C++11) |
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explicit exponential_distribution( RealType lambda );
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(2) | (since C++11) |
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explicit exponential_distribution( const param_type& params );
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(3) | (since C++11) |
Constructs a new distribution object. (2) uses lambda as the distribution parameter. (3) uses params as the distribution parameter.
Parameters
| lambda | - | the λ distribution parameter (the rate parameter) |
| params | - | the distribution parameter set |
Notes
Requires that 0 < lambda.
Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
| DR | Applied to | Behavior as published | Correct behavior |
|---|---|---|---|
| P0935R0 | C++11 | default constructor was explicit | made implicit |