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# CFSetGetCountOfValue(_:_:)

Returns the number of values in a set that match a given value.

```
func CFSetGetCountOfValue(_ theSet: CFSet!, _ value: UnsafeRawPointer!) -> CFIndex
```

## Parameters

`theSet`

The set to examine.

`value`

The value for which to search in `theSet`. Comparisons are made using the equal callback provided when `theSet` was created. If the equal callback was `NULL`, pointer equality (in C, ==) is used.

## Return Value

The number of times `value` occurs in `theSet`. By definition, sets can not contain duplicate values, so returns `1` if `value` is contained in `theSet`, otherwise `0`.

## Discussion

This function uses the equal callback. `value` and all elements in the set must be understood by the equal callback.

---

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