On Mon, Oct 15, 2012 at 10:18 AM, Ben Reser <b...@reser.org> wrote:
> On Mon, Oct 15, 2012 at 7:30 AM,  <i...@apache.org> wrote:
>> Author: ivan
>> Date: Mon Oct 15 11:30:08 2012
>> New Revision: 1398252
>>
>> URL: http://svn.apache.org/viewvc?rev=1398252&view=rev
>> Log:
>> Make code a little bit more clear and faster.
>>
>> * subversion/libsvn_subr/error.c
>>   (svn_error_wrap_apr): Use apr_pstrcat() instead of apr_psprintf().
>>
>> Modified:
>>     subversion/trunk/subversion/libsvn_subr/error.c
>>
>> Modified: subversion/trunk/subversion/libsvn_subr/error.c
>> URL: 
>> http://svn.apache.org/viewvc/subversion/trunk/subversion/libsvn_subr/error.c?rev=1398252&r1=1398251&r2=1398252&view=diff
>> ==============================================================================
>> --- subversion/trunk/subversion/libsvn_subr/error.c (original)
>> +++ subversion/trunk/subversion/libsvn_subr/error.c Mon Oct 15 11:30:08 2012
>> @@ -196,9 +196,14 @@ svn_error_wrap_apr(apr_status_t status,
>>        va_start(ap, fmt);
>>        msg = apr_pvsprintf(err->pool, fmt, ap);
>>        va_end(ap);
>> -      err->message = apr_psprintf(err->pool, "%s%s%s", msg,
>> -                                  (msg_apr) ? ": " : "",
>> -                                  (msg_apr) ? msg_apr : "");
>> +      if (msg_apr)
>> +        {
>> +          err->message = apr_pstrcat(err->pool, msg, ": ", msg_apr, NULL);
>> +        }
>> +      else
>> +        {
>> +          err->message = msg;
>> +        }
>>      }
>>
>>    return err;
>>
>
> That's not functionally equivalent.  If msg_apr is NULL then you'll
> get a trailing ": " when you couldn't have otherwise.
>
> This would be equivalent:
>  err->message = apr_pstrcat(err->pool, msg, (msg_apr) ? ": " : "",
> msg_apr, NULL);

Nevermind, msg_apr can't be NULL there.

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