What is good way to obtain the locale settings of the system  ?
I've seen that test_locale.cpp is stored in regress... so if it is deprecated, what is the up to date method ?

For example if I want to obtain the LCID (codes in 2 parts giving locale language) what can I use ?

I don't want to treat numbers, money or so what.. but only get langage !!!   Can I do it with boost ?