id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
4485,boost.filesysten v3 breaks boost:::iostream::mapped_file,ttan@…,Daniel James,"boost:::iostream::mapped_file has been design so that when passing file path to the constructor or open(), it only accepts 3 types: std::string,
boost::filesystem::path, boost::filesystem::wpath. 

due to the late update to boost::filesystem v3, boost::filesystem::path is no longer templated, and wpath is gone.
and as Windows uses UTF16, when a path is converted from utf16 to a certain ANSI/OEM code page(CP), causes information loss, for example, ""Apress ©"" in unicode would be converted to ""Apress ?"" in CP936, where code point 0x00a9(©) is lost, though it's a legal character in file name.

it amounts to that support for std::wstring in  boost:::iostream::mapped_file is gone.

a patch is needed to remove the dependence on boost.filesystem v2, and revert to the support of std::wstring,  which can be get from path.wstring() in boost::filesystem v3.


",Patches,closed,To Be Determined,iostreams,Boost Development Trunk,Problem,fixed,filesystem v3 iostream mapped_file,