Quantity.opCast

A quantity is castable to another one with the same unit if the value type can be casted to the new one.

For converting a quantity to another unit, see convert instead.

struct Quantity(Unit, ValueType = double)

Quantity!(Unit, NewV)

opCast

(

T : Quantity!(Unit, NewV)

NewV

)

()

if (

is(typeof(cast(NewV)ValueType.init))

)

if (

isUnit!Unit

)

Examples

auto a = 2.0 * metre;
assert(cast(Quantity!(metre, int))a == 2 * metre);