[boost] Re: fix: intel.hpp

From: Pavel Vozenilek (pavel_vozenilek_at_[hidden])
Date: 2003-04-25 18:33:38

"Gennaro Prota" <gennaro_prota_at_[hidden]> wrote in message
news:gfiiavsilm9pnmchm6lmr396d46enacdf5_at_4ax.com...
> On Fri, 25 Apr 2003 10:16:09 -0400, David Abrahams
> <dave_at_[hidden]> wrote:
>
> Wait a moment. Have you asked John about this? That's not to doubt of
> you, of course, but the issue is quite tricky. _NATIVE_WCHAR_T_DEFINED
> is a VC7 undocumented macro, defined when you use /Zc:wchar_t:
>
[snip]

It is even more complicated than that. I tried 12 different combinations
(all Windows) and put results into table (hope
formatting stays readable):

Compiler      wchar_t   _WCHAR_T_DEFINED   _NATIVE_WCHAR_T_DEFINED
details:      defined:   macro is defined:  macro is defined:
---------     --------  ------------------ -----------------------
standalone    no        no                 no
ICL6.0

standalone    yes       yes                no
IC6.0 with    (but is
option        buggy)
-Zc:wchar_t

ICL6.0 in     no        yes!!!             no
VC++6 IDE

ICL6.0 in     yes       yes                no
VC++6 IDE     (but is
and option    buggy)
-Zc:wchar_t

standalone    no        no                 no
ICL7.0

standalone    yes       yes                no
ICL7.0
and option
-Zc:wchar_t

ICL7.0 in     no        no                 no
VC++6 IDE

ICL7.0 in     yes       yes                no
VC++6 IDE
and option
-Zc:wchar_t

ICL7.0 in     yes       yes                no
VC++7 IDE,
Intel C++
settings

ICL7.0 in     yes       yes                no
VC++7 IDE,
Intel C++
settings,
with option
-Zc:wchar_t

ICL7.0 in     yes       yes                yes
VC7 IDE,
MSVC settings

ICL7.0 in     yes       yes                yes
VC7 IDE,
MSVC settings,
with option
-Zc:wchar_t

------------------------

So hopefully this will cover all the cases:

#if BOOST_INTEL_CXX_VERSION < 700
#  define BOOST_NO_INTRINSIC_WCHAR_T
#else
#  ifndef _WCHAR_T_DEFINED
#    define BOOST_NO_INTRINSIC_WCHAR_T
#  endif
#endif

The _CPPUNWIND works as expected for all combinations I tried.

/Pavel