std::uniform_real_distribution<RealType>::uniform_real_distribution

From cppreference.com
uniform_real_distribution( ) : uniform_real_distribution( 0.0 ) { }
(1) (since C++11)
explicit uniform_real_distribution( RealType a, RealType b = 1.0 ) ;
(2) (since C++11)
explicit uniform_real_distribution( const param_type& params ) ;
(3) (since C++11)

Constructs a new distribution object.

2) Uses a and b as the distribution parameters.
3) Uses params as the distribution parameters.

Parameters

a - the a distribution parameter (minimum value)
b - the b distribution parameter (maximum value)
params - the distribution parameter set

Notes

Requires that a ≤ b and b - a ≤ std::numeric_limits <RealType> :: max ( )

If a == b, subsequent calls to the operator() overload that does not accept a param_type

To create a distribution over the closed interval [a,b], std::nextafter (b, std::numeric_limits <RealType> :: max ( ) )

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