David Abrahams <[EMAIL PROTECTED]> writes:
>
> I'd much prefer:
> BOOST_WORKAROUND(__SUNPRO_CC, BOOST_LATEST_VERSION(0x530))
>
> Which I think is easily achievable, no?
>
> # define BOOST_WORKAROUND(symbol, test) (symbol != 0) && (1 % ((symbol test) +
>1))
> # ifdef BOOST_DETECT_OUTDATED
> # define BOOST_LATEST_VERSION(value) >value?-1:1
> # else
> # define BOOST_LATEST_VERSION(value) != 0
> # endif
>
> int x = 0;
>
> # if BOOST_WORKAROUND(COMPILER_VERSION, < 20)
> int y = 0;
> # elif BOOST_WORKAROUND(COMPILER_VERSION, BOOST_LATEST_VERSION(20))
> int z = 0;
> # endif
>
> This seems to work for everything but metrowerks, which says:
>
> ### mwcc Compiler:
> # File: foo.cpp
> # ----------------
> # 16: ( 21 != 0) && (1 % (( 21 >20?-1:1) + 1))
> # Error: ^
> # expression syntax error
>
>
> :(
>
> If anyone can come up with a workaround, I'd be psyched!
This does it:
# define BOOST_WORKAROUND(symbol, test) (symbol != 0) && (1 % (( (symbol test) )
+ 1))
# ifdef BOOST_DETECT_OUTDATED_WORKAROUNDS
# define BOOST_OPEN_PAREN (
# define BOOST_CHECKED_AT(value) > value) ?(-1): BOOST_OPEN_PAREN 1
# else
# define BOOST_CHECKED_AT(value) != 0
# endif
Now:
# if BOOST_WORKAROUND(BOOST_MSVC, BOOST_CHECKED_AT(1300))
Seems to work as desired.
Any objections? I think I'm going to modify
boost/detail/workaround.hpp now.
--
David Abrahams
[EMAIL PROTECTED] * http://www.boost-consulting.com
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