#pragma once

#include <cstdint>
#include <limits>
#include <optional>

namespace xrpl {
constexpr auto kMuldivMax = std::numeric_limits<std::uint64_t>::max();

/**
 * Return value*mul/div accurately.
 *
 * Computes the result of the multiplication and division in
 * a single step, avoiding overflow and retaining precision.
 *
 * @throws None
 * @return `std::nullopt` if the calculation overflows. Otherwise,
 *         `value * mul / div`.
 */
std::optional<std::uint64_t>
mulDiv(std::uint64_t value, std::uint64_t mul, std::uint64_t div);

}  // namespace xrpl