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From: Joel Brobecker <brobecker@adacore.com>
To: Andrey Smirnov <andrew.smirnov@gmail.com>,
	Pedro Alves <pedro@codesourcery.com>,
	Jan Kratochvil <jan.kratochvil@redhat.com>
Cc: gdb-patches@sourceware.org, tromey@redhat.com
Subject: Re: [PATCH 033/238] [misc.] breakpoint.c: -Wshadow fix
Date: Mon, 05 Dec 2011 11:25:00 -0000	[thread overview]
Message-ID: <20111205112523.GJ2777@adacore.com> (raw)
In-Reply-To: <1322493153-29512-1-git-send-email-andrew.smirnov@gmail.com>

> Cause:
>        Variable in the inner scope shadowed by variable from outer
>        one(defined at the beginning of function.
[...]
> diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c
> index 1a4974c..69a8782 100644
> --- a/gdb/breakpoint.c
> +++ b/gdb/breakpoint.c
> @@ -10667,8 +10667,8 @@ update_global_location_list (int should_insert)
>      {
>        /* ALL_BP_LOCATIONS bp_location has LOC->OWNER always
>  	 non-NULL.  */
> -      struct breakpoint *b = loc->owner;
>        struct bp_location **loc_first_p;
> +      b = loc->owner;
>  
>        if (b->enable_state == bp_disabled
>  	  || b->enable_state == bp_call_disabled

I looked at it, and it looks fine from a functional point of view.
However, I'd rather have Jan or Pedro, who have modified this function
more often than I have, to weigh in.

Personally, I'm not keen on the fact that a global variable is reused
in the context of a local loop. So I would rather rename the local
variable inside the loop rather than delete the local variable,
and reuse the global one.  It makes for a bigger patch, but I think
it's better in the end.

-- 
Joel


  reply	other threads:[~2011-12-05 11:25 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-22 13:25 [PATCH 33/348] Fix -Wsahdow warnings Andrey Smirnov
2011-11-22 19:11 ` Tom Tromey
2011-11-28 15:13   ` [PATCH 033/238] [misc.] breakpoint.c: -Wshadow fix Andrey Smirnov
2011-12-05 11:25     ` Joel Brobecker [this message]
2011-12-05 13:05       ` Andrey Smirnov
2011-12-05 13:17       ` Pedro Alves

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