`mp_units::quantity`¶

A quantity

Synopsis¶

template<Reference auto R, RepresentationOf<get_quantity_spec(R)> Rep = double>
class quantity : public /* implementation-defined */

Property of a phenomenon, body, or substance, where the property has a magnitude that can be expressed by means of a number and a reference.

Name	Description
`/* implementation-defined */`

Name
`rep`

Name	Description
`quantity` [constructor]	Constructors
`operator=`	Assignment operator
`force_in` [deprecated]
`force_numerical_value_in` [deprecated]
`in`
`magnitude`
`numerical_value_in`
`numerical_value_ref_in`
`operator%=`	Modulus assignment operator
`operator*=`	Multiplication assignment operators
`operator+`
`operator++`	Increment operators
`operator+=`	Addition assignment operator
`operator-`
`operator--`	Decrement operators
`operator-=`	Subtraction assignment operator
`operator/=`	Division assignment operators
`operator Q_`	Conversion to `Q_`
`operator V_`	Conversion to `V_`

Name	Description
`numerical_value_is_an_implementation_detail_`	needs to be public for a structural type

Name
`quantity<R, representation_canonical_type_t<Value>>`
`quantity<R{}, representation_canonical_type_t<Value>>`
`quantity<quantity_like_traits<Q>::reference, quantity_like_traits<Q>::rep>`

Name	Description
`abs`	Computes the absolute value of a quantity
`cbrt`	Computes the cubic root of a quantity
`ceil`	Computes the smallest quantity with integer representation and unit type To with its number not less than q
`epsilon`	Returns the epsilon of the quantity
`exp`	Computes Euler's raised to the given power
`floor`	Computes the largest quantity with integer representation and unit type To with its number not greater than q
`fma`	Computes the fma of 3 quantities
`fma`	Computes the fma of 2 quantities and a quantity point
`fmod`	Computes the floating-point remainder of the division operation x / y.
`hypot`	Computes the square root of the sum of the squares of x, y, and z, without undue overflow or underflow at intermediate stages of the computation
`hypot`	Computes the square root of the sum of the squares of x and y, without undue overflow or underflow at intermediate stages of the computation
`inverse`	Computes the inverse of a quantity in a provided unit
`isfinite`	Determines if a quantity is finite.
`isinf`	Determines if a quantity is infinite.
`isnan`	Determines if a quantity is a nan.
`operator*`	Multiplication operator
`pow`	Computes the value of a quantity raised to the `Num/Den` power
`remainder`	Computes the IEEE remainder of the floating point division operation x / y.
`round`	Computes the nearest quantity with integer representation and unit type `To` to `q`
`sqrt`	Computes the square root of a quantity
`value_cast`	Explicit cast of a quantity's representation type

Name	Description
R	a reference of the quantity providing all information about quantity properties
Rep	a type to be used to represent values of a quantity