On Mon, 07 May 2018 07:33:16 +0200 (CEST), Werner LEMBERG wrote:

> You would only check the return value of `FT_Done_Face' if your code
> gets an `FT_Face' handle that it doesn't manage by itself (rather
> unlikely, but who knows).  In this situation it could happen that the
> handle is NULL, and this should be reported back – not because
> `FT_Done_Face' can't handle value NULL but the fact that it has
> received such a handle, which indicates a problem in the calling
> program.

NULL should be perfectly valid -- it simply indicates the object
was never allocated.

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