std::experimental::ranges::UniformRandomNumberGenerator
From cppreference.com
| Defined in header <experimental/ranges/random>
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template< class G >
concept bool UniformRandomNumberGenerator =
Invocable<G&> &&
UnsignedIntegral<std::result_of_t<G&()>> &&
requires {
{ G::min() } -> Same<std::result_of_t<G&()>>&&;
{ G::max() } -> Same<std::result_of_t<G&()>>&&;
};
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(ranges TS) | |
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()andG::max()are prvalue constant expressions;G::min() < G::max()g()is in the range[G::min(), G::max()]g()has amortized constant complexity.