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From: Paul Pluzhnikov <ppluzhnikov@google.com>
To: Jonathan Wakely <jwakely@redhat.com>
Cc: Rich Felker <dalias@libc.org>,
	Florian Weimer <fweimer@redhat.com>,
	 Paul Pluzhnikov via Libc-alpha <libc-alpha@sourceware.org>
Subject: Re: [patch] Use __builtin_FILE and __builtin_LINE in assert implementation in C++
Date: Wed, 25 Jan 2023 12:50:41 -0800	[thread overview]
Message-ID: <CALoOobPD0pPxciksLtFfB_VGCS-oT_jm9wXzyfeY=sDFZesDeQ@mail.gmail.com> (raw)
In-Reply-To: <CACb0b4nXwwY73Eo3kFQ+cHs10GLgRd7SX15-YJo9EBV6hK6Piw@mail.gmail.com>

On Tue, Jan 24, 2023 at 3:54 AM Jonathan Wakely <jwakely@redhat.com> wrote:

> Added to GCC 4.8.0 in 2012. I don't know about Clang.

(Like I said in the original email.)

Clang implementation is quite a bit more recent:

commit 708afb56c125ca4f7db7070e836860076c7eafbc
Author: Eric Fiselier <eric@efcs.ca>
Date:   Thu May 16 21:04:15 2019 +0000

    Implement __builtin_LINE() et. al. to support source location capture.


I feel like a __has_builtin gate isn't really necessary here, but will
put one in if people think it's necessary.

On Tue, 24 Jan 2023 at 11:38, Rich Felker <dalias@libc.org> wrote:

> (Also, C++ programmers should stop putting so much code in inline
> functions in headers.

There are C++ projects (Boost, Eigen) which consist _entirely_  of headers.
It was Eigen that has triggered this thread.

We could rewrite eigen_assert() to use source_location instead of
assert(), but I thought fixing it here is better, since it fixes all
C++ projects and not just Eigen.



--
Paul Pluzhnikov

      parent reply	other threads:[~2023-01-25 20:51 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-17 19:28 Paul Pluzhnikov
2023-01-23 14:26 ` Florian Weimer
2023-01-24 11:10   ` Rich Felker
2023-01-24 11:19     ` Rich Felker
2023-01-24 11:19     ` Florian Weimer
2023-01-24 11:23       ` Rich Felker
2023-01-24 11:53         ` Jonathan Wakely
2023-01-24 12:08           ` Florian Weimer
2023-01-24 12:17             ` Jonathan Wakely
2023-01-24 15:07               ` Szabolcs Nagy
2023-01-24 15:51                 ` Jonathan Wakely
2023-01-26 19:18                   ` Paul Pluzhnikov
2023-01-27 15:43                     ` Jonathan Wakely
2023-02-05 18:39                       ` Paul Pluzhnikov
2023-02-05 20:08                         ` Florian Weimer
2023-02-05 21:51                           ` Paul Pluzhnikov
2023-02-05 22:34                             ` Florian Weimer
2023-02-05 22:55                               ` Paul Pluzhnikov
2023-02-06  6:01                                 ` Florian Weimer
2023-02-06 16:25                                   ` Paul Pluzhnikov
2023-02-08 21:43                                     ` Paul Pluzhnikov
2023-01-25 20:50           ` Paul Pluzhnikov [this message]

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