From: Markus Elfring <Markus.Elfring@web.de>
To: "Julia Lawall" <julia.lawall@lip6.fr>, "Jürgen Groß" <jgross@suse.com>
Cc: Coccinelle <cocci@systeme.lip6.fr>
Subject: Re: [Cocci] macro parameters and expressions?
Date: Mon, 14 Oct 2019 13:50:36 +0200 [thread overview]
Message-ID: <62c99227-667a-0133-ac31-6e6b144bb3d9@web.de> (raw)
In-Reply-To: <alpine.DEB.2.21.1910141309080.2330@hadrien>
> #define macro2a(par) \
> par++; \
> func(buf, 1, 17)
>
> Nothing happens here either.
May I see also the complete source code examples?
> Because the final ; is omitted the body of the macro is not valid C.
I suggest to reconsider also this view.
> But it doesn't work if you add a semicolon at the end either.
> It seems that a sequence of statements is not supported either.
Do such software limitations become more interesting?
> On the other hand, if you transform it into a do while(0),
> even with no trailing semicolon after the while (0) all is fine.
Such a coding style can also help.
How will the affected software components be improved further?
Regards,
Markus
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next prev parent reply other threads:[~2019-10-14 11:51 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-11 7:42 [Cocci] macro parameters and expressions? Jürgen Groß
2019-10-11 20:00 ` Julia Lawall
2019-10-13 13:37 ` Markus Elfring
[not found] ` <alpine.DEB.2.21.1910131806400.2565@hadrien>
2019-10-13 16:33 ` [Cocci] Adjusting macros with SmPL? Markus Elfring
2019-10-13 16:37 ` Julia Lawall
2019-10-13 16:50 ` Markus Elfring
2019-10-14 9:08 ` Markus Elfring
2019-10-14 10:24 ` Julia Lawall
2019-10-14 11:00 ` Markus Elfring
2019-10-15 8:20 ` Markus Elfring
2019-10-16 14:16 ` [Cocci] Adjustments with SmPL after macros? Markus Elfring
2019-10-16 15:23 ` Julia Lawall
2019-10-16 16:48 ` Markus Elfring
[not found] ` <alpine.DEB.2.21.1910161850250.3539@hadrien>
2019-10-16 16:55 ` Markus Elfring
2019-10-17 9:33 ` Markus Elfring
[not found] ` <fb924870-4bc2-1ca0-4fa4-0ddbf7ebb9d2@suse.com>
2019-10-14 11:14 ` [Cocci] macro parameters and expressions? Julia Lawall
2019-10-14 11:50 ` Markus Elfring [this message]
2019-10-14 13:33 ` Jürgen Groß
2019-10-14 14:03 ` Julia Lawall
2019-10-13 13:28 ` Markus Elfring
2019-10-13 13:36 ` Julia Lawall
2019-10-13 14:22 ` [Cocci] Checking the influence of “virtual” SmPL variables Markus Elfring
2019-10-13 16:09 ` Julia Lawall
2019-10-13 16:39 ` Markus Elfring
2019-10-14 15:33 ` [Cocci] macro parameters and expressions? Markus Elfring
[not found] ` <alpine.DEB.2.21.1910141740580.2330@hadrien>
2019-10-14 16:05 ` Markus Elfring
2019-10-15 6:44 ` Markus Elfring
2019-10-15 6:54 ` Markus Elfring
2019-10-15 7:40 ` Markus Elfring
2019-10-15 8:05 ` Julia Lawall
2019-10-15 8:34 ` Markus Elfring
2019-10-15 9:07 ` Markus Elfring
2019-10-15 9:28 ` Julia Lawall
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