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Re: errno and Carbon APIs

Subject: Re: errno and Carbon APIs
From: "David A. Lyons" <email@hidden>
Date: Tue, 30 Nov 2004 14:08:24 -0800
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On Nov 30, 2004, at 11:07 AM, James W. Walker wrote:

I noticed that FSRenameUnicode sets errno to ENOENT even though it succeeds. I am not familiar enough with Unix custom to know whether this should be considered a bug. Is it considered OK for a function to change errno without being documented as changing errno?

From a Unix perspective, I don't know; maybe the documentation should be updated (to say that Carbon file manager functions "may" change errno).

In practice, a good conservative approach is to assume that almost any API *could* be layered on top of errno-changing calls.

Cheers,

--Dave

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References:
	>errno and Carbon APIs (From: "James W. Walker" <email@hidden>)

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