Converting Multibyte Characters
The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.
The latest version of this topic can be found at Converting Multibyte Characters.
ANSI 3.1.3.4** The current locale used to convert multibyte characters into corresponding wide characters (codes) for a wide character constant
The current locale is the "C" locale by default. It can be changed with the #pragma setlocale.