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Re: compiling with xlc

From: Bruno Haible
Subject: Re: compiling with xlc
Date: Tue, 02 Mar 2021 23:12:50 +0100
User-agent: KMail/5.1.3 (Linux/4.4.0-203-generic; KDE/5.18.0; x86_64; ; )

Hi Luca,

> > 1506-120 (W) Function cannot return a const qualified type.
> I am actually not sure about this one; is it because the returned union
> has a pointer-to-const member?

It's because the function returns a 'const <some_struct>'. If you change the
return type to '<some_struct>', the warning goes away.

Remembering that the return value of a function, in C, can be copied anyway
before it's assigned to its destination, the 'const' cannot prevent this
copying. So it is redundant.


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