std::exponential_distribution<RealType>::exponential_distribution

std::exponential_distribution<RealType>::exponential_distribution - cppreference.com

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`exponential_distribution() : exponential_distribution(1.0) {}`	(1)	(since C++11)
`explicit exponential_distribution( RealType lambda );`	(2)	(since C++11)
`explicit exponential_distribution( const param_type& params );`	(3)	(since C++11)

Constructs a new distribution object.

2) Uses lambda as the distribution parameter.

3) Uses params as the distribution parameter.

lambda	-	the λ distribution parameter (the rate parameter)
params	-	the distribution parameter set

Requires that 0 < lambda.

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