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From: Stefan Beller <stefanbeller@googlemail.com>
To: Stefano Lattarini <stefano.lattarini@gmail.com>
Cc: David Barr <david.barr@cordelta.com>,
	Junio C Hamano <gitster@pobox.com>,
	git@vger.kernel.org
Subject: Re: [PATCH] fast-import: Remove redundant assignment of 'oe' to itself.
Date: Sun, 26 May 2013 22:14:05 +0200	[thread overview]
Message-ID: <51A26D0D.2030702@googlemail.com> (raw)
In-Reply-To: <51A26BB7.3060702@gmail.com>

It's not done very often.
For example at the very same place of the patch there is
const char *p; not assigned.

Well you could argue, that it can be detected by gcc as that variable p
is assigned next line.
So another counterexample, having the same pattern would be
fast-import.c line 2992 in parse_treeish_dataref(const char **p)
there we have a pointer to a struct, which is only assigned inside
the following if/else branches.
Then that place would need to be fixed up to
struct object_entry *e = e;

Regards,
Stefan

On 05/26/2013 10:08 PM, Stefano Lattarini wrote:
> On 05/26/2013 10:05 PM, Stefan Beller wrote:
>> Reported by cppcheck.
>>
>> Signed-off-by: Stefan Beller <stefanbeller@googlemail.com>
>> ---
>>  fast-import.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/fast-import.c b/fast-import.c
>> index 5f539d7..0142e3a 100644
>> --- a/fast-import.c
>> +++ b/fast-import.c
>> @@ -2914,7 +2914,7 @@ static void cat_blob(struct object_entry *oe, unsigned char sha1[20])
>>  static void parse_cat_blob(void)
>>  {
>>  	const char *p;
>> -	struct object_entry *oe = oe;
>>
> This was done on purpose, to avoid spurious warnings with (at least)
> some versions of GCC.
> 
>> +	struct object_entry *oe;
>>  	unsigned char sha1[20];
>>  
>>  	/* cat-blob SP <object> LF */
> 
> Regards,
>   Stefano
> 

  reply	other threads:[~2013-05-26 20:14 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-26 20:05 [PATCH] fast-import: Remove redundant assignment of 'oe' to itself Stefan Beller
2013-05-26 20:08 ` Stefano Lattarini
2013-05-26 20:14   ` Stefan Beller [this message]
2013-05-26 20:17     ` Stefano Lattarini
2013-05-26 20:23       ` Stefan Beller
2013-05-28  8:22   ` Joachim Schmitz

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