id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
1736	Headers containing non ASCII characters cause MS VC to issue warning 4819 in some locales	paulg+boost@…	Marshall Clow	"Some boost headers, including but not limited to,

detail/utf8_codecvt_facet.hpp
detail/allocator_utilities.hpp
detail/atomic_count_gcc.hpp
utility/enable_if.hpp
config/compiler/sunpro_cc.hpp
config/compiler/vacpp.hpp
boost/ref.hpp

Contain non ASCII characters within comments. Some of these are copyright symbols others are within people names.

If this these files are fed to the Microsoft Visual C++ compiler and the system is set to use a locale which cannot represent these characters the following warning is produced

warning C4819: The file contains a character that cannot be represented in the current code page 
(xxx). Save the file in Unicode format to prevent data loss""

In the specific case this was found it was with a Japanese version of Windows using SHIFT-JIS.

The best fix is to remove the non ASCII characters altogether as although it appears to be legal to feed unicode to a C++ compiler it is implementation defined what the compiler then does with it."	Bugs	closed	To Be Determined	None	Boost 1.35.0	Problem	wontfix