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Re: Thoughts on replacing macros with static inline functions


From: xenodasein
Subject: Re: Thoughts on replacing macros with static inline functions
Date: Fri, 18 Nov 2022 12:31:59 +0100 (CET)

Nov 18, 2022, 08:34 by eliz@gnu.org:

>> From: Po Lu <luangruo@yahoo.com>
>> Cc: Richard Stallman <rms@gnu.org>,  xenodasein@tutanota.de,  Eli Zaretskii
>>  <eliz@gnu.org>,  pappasbrent@knights.ucf.edu
>> Date: Fri, 18 Nov 2022 14:27:09 +0800
>>
>> And how is an additional function an improvement over extremely trivial
>> macros, like these:
>>
>> #define XM_DRAG_REASON(originator, code)     ((code) | ((originator) << 7))
>> #define XM_DRAG_REASON_ORIGINATOR(reason)    (((reason) & 0x80) ? 1 : 0)
>> #define XM_DRAG_REASON_CODE(reason)          ((reason) & 0x7f)
>>
>
> The purpose of macros such as the above is to explain the meaning of
> the code in human-readable terms.  Replacing this by functions makes
> no more sense than replacing "c = a + b;" with a function.
>

Right?  Who needs a proper API when you can have paranoid parentheses
macros with bit hackery!




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