mp_units::round

round overloads

Synopses

Declared in <mp-units/math.h>

Computes the nearest quantity with integer representation and unit type To to q

template<Unit auto To, auto R, typename Rep>
[[nodiscard]] constexpr quantity<detail::clone_reference_with<To>(R), Rep> round(quantity<R, Rep> const& q) noexcept
  requires requires {
    mp_units::floor<To>(q);
    representation_values<Rep>::one();
  } && std::constructible_from<std::int64_t, Rep>;

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Computes the nearest quantity point with integer representation and unit type To to qp

template<Unit auto To, auto R, auto PO, typename Rep>
[[nodiscard]] constexpr QuantityPointOf<quantity_point<R, PO, Rep>::quantity_spec> auto round(
  quantity_point<R, PO, Rep> const& qp) noexcept
  requires requires {
    mp_units::floor<To>(qp);
    representation_values<Rep>::one();
  } && std::constructible_from<std::int64_t, Rep>;

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Return Value

• Quantity The quantity rounded to the nearest unit To, rounding to even in halfway cases.
• QuantityPoint The quantity rounded to the nearest unit To, rounding to even in halfway cases.

Note

The return value should not be discarded.

Template Parameters

Name	Description
q	Quantity being the base of the operation

Parameters

Name	Description
qp	Quantity point being the base of the operation