id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
6060	Warning generated in SNC C++ compiler by use of __sync_fetch_and_add	Fernando Diaz <fdiaza@…>	Peter Dimov	"When compiling code that uses boost/shared_array.hpp in SNC C++ compiler, the following warning is generated:

../../SDKs/Boost/boost/smart_ptr/detail/sp_counted_base_sync.hpp(48,37): warning 68: integer conversion resulted in a change of sign

in this line:

{{{
return __sync_fetch_and_add( pw, -1 );
}}}

I've managed to fix the warning by replacing ""__sync_fetch_and_add"" with ""__sync_fetch_and_sub"", and changing the second argument from ""-1"" to ""1"".
I've included a patch, hope it helps."	Patches	closed	To Be Determined	smart_ptr	Boost 1.47.0	Optimization	wontfix