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std::uniform_real_distribution<RealType>::uniform_real_distribution

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Pseudo-random number generation
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Uniform distributions
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(C++11)
C library
 
 
uniform_real_distribution() : uniform_real_distribution(0.0) { }
(1) (since C++11)
explicit uniform_real_distribution( RealType a, RealType b = 1.0 );
(1) (since C++11)
explicit uniform_real_distribution( const param_type& params );
(2) (since C++11)

Constructs a new distribution object. (2) uses a and b as the distribution parameters, (3) uses params as the distribution parameters.

[edit] Parameters

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

[edit] 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 object will cause undefined behavior.

To create a distribution over the closed interval [a,b], std::nextafter(b, std::numeric_limits<RealType>::max()) may be used as the second parameter.

[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
P0935R0 C++11 default constructor was explicit made implicit