Eric Niebler wrote:
You can help improve Boost.Foreach and Boost.Typeof for your favorite compiler! Read on.
Well typeof is already native and working fine for CW (8.3) :-)
Eric Niebler wrote:
Thorsten Ottosen wrote:
Now it works on vc7.1 too.
getting this to work with vc7.1 is a major advance. Thanks.
I am now using the compile-time-const-rvalue-detection trick in the new-and-improved BOOST_FOREACH. For the first time, it's passing its tests at 100% for VC7.1 and VC8. Also, const rvalues are being detected on gcc 3.4+ with zero runtime overhead. Very nice!
OK, now here's a simple thing anybody can do to improve Foreach and Typeof. Try compiling the attached file on your favorite compiler and report the results. I already know it works for VC7.1+ and gcc 3.4+. Everything else is up for grabs.
Doesn't work at all with CW-8.3. With some mods to get some better error messages (attached): is_rvalue.cpp:76: illegal use of incomplete struct/union/class 'impl_::rvalue<2, 0>' is_rvalue.cpp:77: illegal use of incomplete struct/union/class 'impl_::rvalue<2, 0>' is_rvalue.cpp:78: illegal use of incomplete struct/union/class 'impl_::rvalue<2, 0>' is_rvalue.cpp:79: illegal use of incomplete struct/union/class 'impl_::rvalue<2, 0>' is_rvalue.cpp:90: illegal use of incomplete struct/union/class 'impl_::rvalue<2, 0>' is_rvalue.cpp:91: illegal use of incomplete struct/union/class 'impl_::rvalue<2, 0>' is_rvalue.cpp:92: illegal use of incomplete struct/union/class 'impl_::rvalue<2, 0>' is_rvalue.cpp:93: illegal use of incomplete struct/union/class 'impl_::rvalue<2, 0>' is_rvalue.cpp:94: illegal use of incomplete struct/union/class 'impl_::rvalue<2, 0>' is_rvalue.cpp:101: illegal use of incomplete struct/union/class 'impl_::rvalue<2, 0>' is_rvalue.cpp:102: illegal use of incomplete struct/union/class 'impl_::rvalue<2, 0>' ...Without the mods it just says "illegal constant expression" a bunch of times :-) -- -- Grafik - Don't Assume Anything -- Redshift Software, Inc. - http://redshift-software.com -- rrivera/acm.org - grafik/redshift-software.com -- 102708583/icq - grafikrobot/aim - Grafik/jabber.org