id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
4593	Type_of does not use BOOST_TYPEOF_EMULATION for VC10 and \Za	Paul A. Bristow	Peder Holt	"Type_of does not use BOOST_TYPEOF_EMULATION for VC10 and \Za.

For example  boost/math/libs/test/pow_test.cpp

fails to compile with \Za (No MS extensions)

I:\boost-trunk\boost/typeof/msvc/typeof_impl.hpp(125): error C2143: syntax error : missing ';' before '<'
          I:\boost-trunk\boost/typeof/msvc/typeof_impl.hpp(133) : see reference to class template instantiation 'boost::type_of::msvc_extract_type<ID,T>' being compiled
I:\boost-trunk\boost/typeof/msvc/typeof_impl.hpp(125): error C2913: explicit specialization; 'boost::type_of::msvc_extract_type<ID,boost::type_of::msvc_extract_type_default_param>::id2type_impl' is not a specialization of a class template
I:\boost-trunk\boost/typeof/msvc/typeof_impl.hpp(125): error C2059: syntax error : '<'
I:\boost-trunk\boost/typeof/msvc/typeof_impl.hpp(126): error C2334: unexpected token(s) preceding '{'; skipping apparent function body
  using native typeof
I:\boost-trunk\boost/typeof/msvc/typeof_impl.hpp(125): error C2143: syntax error : missing ';' before '<'
...

#define BOOST_TYPEOF_NATIVE 

produces same error

#define BOOST_TYPEOF_EMULATION 

Works OK

pow_test.cpp
  using typeof emulation
  Generating code
...

Would I be right in hoping that native type_of would be used for VC10? 

(I note tests for VC >= 1400 but none for later versions).

Or that emulation would be selected automatically for VC10?

Or does using \Za mean type_of cannot be used?



"	Bugs	closed	Boost 1.45.0	typeof	Boost Development Trunk	Problem	fixed	type_of