Peter Dimov wrote:
your program is broken and should fail to compile, but doesn't. That's why I still think that it's better to define BOOST_SP_DISABLE_THREADS
You are right and I agree with your conclusion. But then, any test program that needs Windows API will need to compile in separate TU without --a. Threads are basically useless in como 4.3.3, because any program that depends on Boost.Threads will not compile, anyway. Below you will find another experiment B. MSYS>como --a -DBOOST_SP_DISABLE_THREADS -IG:\boost T680.cpp -oT680 Comeau C/C++ 4.3.3 (Jan 13 2004 11:29:09) for MS_WINDOWS_x86 Copyright 1988-2003 Comeau Computing. All rights reserved. MODE:strict warnings C++ "T680.cpp", line 7: error: no suitable constructor exists to convert from "A *" to "boost::shared_ptr<A>" boost::shared_ptr<A> a = new A(); ^ 1 error detected in the compilation of "T680.cpp".