/* * This code was written by Rich Felker in 2010; no copyright is claimed. * This code is in the public domain. Attribution is appreciated but * unnecessary. */#include<stdlib.h>#include<inttypes.h>#include<wchar.h>#include<errno.h>#include"internal.h"intmblen(constchar*s,size_tn){returnmbtowc(0,s,n);}