c-init-language-vars-for is a compiled Lisp function in `cc-mode.el'.

(c-init-language-vars-for MODE)

Initialize the language variables for one of the language modes
directly supported by CC Mode. This can be used instead of the
`c-init-language-vars' macro if the language you want to use is one of
those, rather than a derived language defined through the language
variable system (see "cc-langs.el").