HELPLIB.HLB  —  CRTL  wctype
    Used for defining a character class. The value returned by this
    function is used in calls to the iswctype function.

    Format

      #include  <wctype.h> (ISO C)

      #include  <wchar.h> (XPG4)

      wctype_t wctype  (const char *char_class);
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