Function: charsetp
charsetp is a function defined in charset.c.
Signature
(charsetp OBJECT)
Documentation
Return non-nil if and only if OBJECT is a charset.
Probably introduced at or before Emacs version 20.1.
Source Code
// Defined in /usr/src/emacs/src/charset.c
{
return (CHARSETP (object) ? Qt : Qnil);
}