[boost] Re: BOOST_TESTED_AT

From: David Abrahams (dave_at_[hidden])
Date: 2003-05-15 18:07:01

"Giovanni Bajo" <giovannibajo_at_[hidden]> writes:

> Hello,
>
> the argument of BOOST_TESTED_AT() is not evaluated until
> BOOST_DETECT_OUTDATED_WORKAROUNDS is defined. While this is not such a big
> problem, it hides typos.
> I propose this little patch, but I don't know how well it will interact with
> broken preprocessors.
>
> Comments?

Looks like a good idea to me.  Let's check it in and see what breaks.

>
> Executing: cvs diff -cw workaround.hpp
> Index: workaround.hpp
> ===================================================================
> RCS file: /cvsroot/boost/boost/boost/detail/workaround.hpp,v
> retrieving revision 1.8
> diff -c -w -r1.8 workaround.hpp
> *** workaround.hpp 20 Mar 2003 15:29:32 -0000 1.8
> --- workaround.hpp 15 May 2003 19:38:15 -0000
> ***************
> *** 62,68 ****
>   #   define BOOST_OPEN_PAREN (
>   #   define BOOST_TESTED_AT(value)  > value) ?(-1): BOOST_OPEN_PAREN 1
>   #  else
> ! #   define BOOST_TESTED_AT(value) != 0
>   #  endif
>
>   # else
> --- 62,68 ----
>   #   define BOOST_OPEN_PAREN (
>   #   define BOOST_TESTED_AT(value)  > value) ?(-1): BOOST_OPEN_PAREN 1
>   #  else
> ! #   define BOOST_TESTED_AT(value) != ((value) - (value))
>   #  endif
>
>   # else
>
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-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com