countIf

Performs a linear scan of buf from [0 .. buf.length$(RP), returning a count of the number of elements where pred returns true.

size_t countIf(Elem[] buf, Pred1E pred)
version(TangoDoc)
size_t
countIf
(
Elem[] buf
,
Pred1E pred = Pred1E.init
)
template countIf(Buf, Pred)

Parameters

buf Elem[]: The array to scan.
pred Pred1E: The evaluation predicate, which should return true if the element is a valid match and false if not. This predicate may be any callable type.

Return Value

Type: size_t

The number of elements where pred returns true.

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Source

See Implementation