Re: [boost] Boost.Test and Xcode 4.5 in C++11 Mode

Subject: Re: [boost] Boost.Test and Xcode 4.5 in C++11 Mode
From: Andrey Semashev (andrey.semashev_at_[hidden])
Date: 2012-11-15 10:32:49

On Thu, Nov 15, 2012 at 7:24 PM, Daniel James <dnljms_at_[hidden]> wrote:
> On 15 November 2012 14:54, Daniel James <dnljms_at_[hidden]> wrote:
>>
>> I tried building with Clang 3.1 in C++11 mode, and I got the same
>> errors as you.
>
> I think it's a clang bug, here's a test case:
>
>     template <typename T> struct foo {};
>     foo<decltype(1 > 0)> x;
>
> It thinks the '>' from '1 > 0' is an angle bracket, I guess it has
> been fixed on clang trunk. A workaround is just to double the round
> brackets. I've attached a patch that I used to get Boost.Test to
> compile. It's a bit messy though.

Note there is difference between decltype(x) and decltype((x)), so the
change may alter the behavior. I didn't examine the code to confirm
that though, just a heads up.