std::experimental::ranges::UniformRandomNumberGenerator (3) - Linux Manuals

std::experimental::ranges::UniformRandomNumberGenerator: std::experimental::ranges::UniformRandomNumberGenerator


std::experimental::ranges::UniformRandomNumberGenerator - std::experimental::ranges::UniformRandomNumberGenerator


Defined in header <experimental/ranges/random>
template <class G>
concept bool UniformRandomNumberGenerator =
Invocable<G&> &&
UnsignedIntegral<std::result_of_t<G&()>> && (ranges TS)
requires {
{ G::min() } -> Same<std::result_of_t<G&()>>&&;
{ G::max() } -> Same<std::result_of_t<G&()>>&&;

The concept UniformRandomNumberGenerator<G> specifies that G is the type of a uniform random number generator, that is, objects of type G is a function object returning unsigned integer values such that each value in the range of possible results has (ideally) equal probability of being returned.
UniformRandomNumberGenerator<G> is satisfied only if, given any object g of type G:

* G::min() and G::max() are prvalue constant expressions;
* G::min() < G::max()
* g() is in the range [G::min(), G::max()]
* g() has amortized constant complexity.