====== Wiki ======

  * [[:Start|Startseite]]
  * [[C:Start|C-Tutorial]]
  * [[C:Lib:Start|C-StandardLibs]]
  * [[c:lib:ctype:start|ctype.h]]

====== Community ======

  * [[http://forum.proggen.org|Forum]]
  * [[http://www.forum.proggen.org/viewforum.php?f=21|C/C++ Forum]]

====== Funktionen ======

  * [[isalnum]]
  * [[isalpha]]
  * [[iscntrl]]
  * [[isdigit]]
  * [[isgraph]]
  * [[islower]]
  * [[isprint]]
  * [[ispunct]]
  * [[isspace]]
  * [[isupper]]
  * [[isxdigit]]
  * [[tolower]]
  * [[toupper]]