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CFFileDescriptorIsValid(_:)

Returns a Boolean value that indicates whether the native file descriptor for a given CFFileDescriptor is valid.

Declaration

func CFFileDescriptorIsValid(_ f: CFFileDescriptor!) -> Bool

Parameters

  • f:

    A CFFileDescriptor.

Return Value

true if the native file descriptor for f is valid, otherwise false.

See Also

Related Documentation

Getting Information About a File Descriptor