[cfe-dev] Using C++11 in clang/tools/extra

[Vane, Edwin]

Really? What happens if you link against libraries not built with C++11? Do you get undefined behaviour? We've been building and running our tools in clang/tools/extra with C++11 turned on and have had no trouble linking with clang libraries so far.

-----Original Message-----
From: cfe-dev-bounces at cs.uiuc.edu [mailto:cfe-dev-bounces at cs.uiuc.edu] On Behalf Of Marshall Clow
Sent: Wednesday, November 28, 2012 1:46 PM
To: cfe-dev at cs.uiuc.edu Developers
Subject: Re: [cfe-dev] Using C++11 in clang/tools/extra

On Nov 28, 2012, at 7:15 AM, "Vane, Edwin" <edwin.vane at intel.com> wrote:

> Hi all,
> 
> It came up in a recent code review (http://llvm-reviews.chandlerc.com/D136) that C++11 features aren't allowed in the codebase. I can understand the reason for this in the LLVM and clang codebases as they're both widely used. However, would it be a problem to use C++11 officially in clang/tools/extra? It's not nearly as widely used and has less of a chance of impacting critical work in the community. Are there other problems I'm missing? If not, could the use of C++11 in clang/tools/extra be officially blessed?

One of the problems with doing this (as we've found with lld), is that you need to link it against a set of clang libraries that are also built with C++11.


-- Marshall

Marshall Clow     Idio Software   <mailto:mclow.lists at gmail.com>

A.D. 1517: Martin Luther nails his 95 Theses to the church door and is promptly moderated down to (-1, Flamebait).
        -- Yu Suzuki


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