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Re: [v3 patch] Fix friend declaration so it is visible to name lookup

From: Paolo Carlini <paolo dot carlini at oracle dot com>
To: Jonathan Wakely <jwakely at redhat dot com>
Cc: libstdc++ at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
Date: Fri, 21 Aug 2015 15:39:52 +0200
Subject: Re: [v3 patch] Fix friend declaration so it is visible to name lookup
Authentication-results: sourceware.org; auth=none
References: <20150820202100 dot GR27791 at redhat dot com> <55D64EC1 dot 6030905 at oracle dot com> <20150821125754 dot GT27791 at redhat dot com>

Hi,

On 08/21/2015 02:57 PM, Jonathan Wakely wrote:

On 21/08/15 00:03 +0200, Paolo Carlini wrote:

Hi,

On 08/20/2015 10:21 PM, Jonathan Wakely wrote:
Jason pointed out this isn't valid, and is going to fail to compile
soon with a fix he's making.
I seem to remember that at some point we had the exact same issuewith some member operator<< and operator>> of <random>.


I don't remember that, but hopefully we won't have any more problems
like this now that Jason is making the front-end diagnose it.

Yes. For your curiosity, I think I had in mind libstdc++/54376, which,besides being about operator==, wasn't the same issue because involved*template* classes. In any case, the lesson is that inline templatefriends are consistently rather evil ;)


Paolo.

References:
- [v3 patch] Fix friend declaration so it is visible to name lookup
  - From: Jonathan Wakely
- Re: [v3 patch] Fix friend declaration so it is visible to name lookup
  - From: Paolo Carlini
- Re: [v3 patch] Fix friend declaration so it is visible to name lookup
  - From: Jonathan Wakely

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