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CFArrayGetFirstIndexOfValue(_:_:_:)

Searches an array forward for a value.

Declaration

func CFArrayGetFirstIndexOfValue(_ theArray: CFArray!, _ range: CFRange, _ value: UnsafeRawPointer!) -> CFIndex

Parameters

  • theArray:

    The array to examine.

  • range:

    The range within theArray to search. The range must lie within the bounds of theArray. The range may be empty (length 0). The search progresses from the lowest index defined by the range to the highest.

  • value:

    The value for which to find a match in theArray. The equal callback provided when theArray was created is used to compare. If the equal callback was NULL, pointer equality (in C, ==) is used. If value, or any other value in theArray, is not understood by the equal callback, the behavior is undefined.

Return Value

The lowest index of the matching values in the range, or -1 if no value in the range matched.

See Also

Examining an Array