[HACKERS] plperl_helpers.h fix for clang

2012-05-24 Thread Peter Eisentraut
clang warns about that newish SvREFCNT_inc(sv) call in plperl_helpers.h
about an unused return value, because the macro expansion of
SvREFCNT_inc(sv) returns sv.  The merit of that warning might be
debatable, but it seems easy to fix by using SvREFCNT_inc_void(sv)
instead.

And we could use SvREFCNT_inc_simple_void(sv), since sv doesn't have any
side effects, but that's optional.

Any concerns?



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Re: [HACKERS] plperl_helpers.h fix for clang

2012-05-24 Thread Alex Hunsaker
On Thu, May 24, 2012 at 11:19 AM, Peter Eisentraut pete...@gmx.net wrote:
 clang warns about that newish SvREFCNT_inc(sv) call in plperl_helpers.h
 about an unused return value, because the macro expansion of
 SvREFCNT_inc(sv) returns sv.  The merit of that warning might be
 debatable, but it seems easy to fix by using SvREFCNT_inc_void(sv)
 instead.

 And we could use SvREFCNT_inc_simple_void(sv), since sv doesn't have any
 side effects, but that's optional.

 Any concerns?

Hrm I can't seem to find either of those functions in my copy of perl
5.8.1 or 5.16.0. I also looked for _inc_ in the event I got casing
wrong :-(.

Perhaps I misunderstood, are you proposing to introduce those
functions? Im fine with that. Or doing (void)SvREFCNT_inc().

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Re: [HACKERS] plperl_helpers.h fix for clang

2012-05-24 Thread Alex Hunsaker
On Thu, May 24, 2012 at 11:31 AM, Alex Hunsaker bada...@gmail.com wrote:
 On Thu, May 24, 2012 at 11:19 AM, Peter Eisentraut pete...@gmx.net wrote:

 And we could use SvREFCNT_inc_simple_void(sv), since sv doesn't have any
 side effects, but that's optional.

 Hrm I can't seem to find either of those functions in my copy of perl
 5.8.1 or 5.16.0. I also looked for _inc_ in the event I got casing
 wrong :-(.

Doh, it is indeed there in 5.16.0, looks like it got added in 5.10
:-(. (I was on the wrong branch...).

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Re: [HACKERS] plperl_helpers.h fix for clang

2012-05-24 Thread Peter Eisentraut
On tor, 2012-05-24 at 11:36 -0600, Alex Hunsaker wrote:
 On Thu, May 24, 2012 at 11:31 AM, Alex Hunsaker bada...@gmail.com wrote:
  On Thu, May 24, 2012 at 11:19 AM, Peter Eisentraut pete...@gmx.net wrote:
 
  And we could use SvREFCNT_inc_simple_void(sv), since sv doesn't have any
  side effects, but that's optional.
 
  Hrm I can't seem to find either of those functions in my copy of perl
  5.8.1 or 5.16.0. I also looked for _inc_ in the event I got casing
  wrong :-(.
 
 Doh, it is indeed there in 5.16.0, looks like it got added in 5.10
 :-(. (I was on the wrong branch...).

It's in ppport.h.


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Re: [HACKERS] plperl_helpers.h fix for clang

2012-05-24 Thread Alex Hunsaker
On Thu, May 24, 2012 at 12:03 PM, Peter Eisentraut pete...@gmx.net wrote:
 On tor, 2012-05-24 at 11:36 -0600, Alex Hunsaker wrote:

 Doh, it is indeed there in 5.16.0, looks like it got added in 5.10
 :-(. (I was on the wrong branch...).

 It's in ppport.h.

Don't see any reason not to then. +1 for the simple_void variant.

[ I completely forgot about ppport.h and was just checking against the
perl source. :-) ]

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