random_element.h

// Description: Random element in a range

#ifndef PASTELSYS_RANDOM_ELEMENT_H
#define PASTELSYS_RANDOM_ELEMENT_H

#include "pastel/sys/random/random_integer.h"
#include "pastel/sys/range.h"

#include <initializer_list>

namespace Pastel
{

    template <ranges::random_access_range Range>
    decltype(auto) randomElement(Range&& elements)
    {
        PENSURE_OP(ranges::size(elements), >, 0);
        return elements[randomInteger(ranges::size(elements))];
    }

    template <typename Type>
    decltype(auto) randomElement(
        const std::initializer_list<Type>& elementSet)
    {
        using Pastel::randomElement;
        return randomElement(range(elementSet));
    }

}

#endif