NAME

       towlower - transliterate uppercase wide-character code to lowercase

SYNOPSIS

       #include <wctype.h>

       wint_t towlower(wint_t wc);

DESCRIPTION

       The  towlower() function has as a domain a type wint_t, the value of which the application
       shall ensure is a  character  representable  as  a  wchar_t,  and  a  wide-character  code
       corresponding  to  a  valid  character  in the current locale or the value of WEOF. If the
       argument has any other value, the behavior is undefined. If  the  argument  of  towlower()
       represents  an  uppercase  wide-character code, and there exists a corresponding lowercase
       wide-character code (as defined by  character  type  information  in  the  program  locale
       category  LC_CTYPE ), the result shall be the corresponding lowercase wide-character code.
       All other arguments in the domain are returned unchanged.

RETURN VALUE

       Upon successful completion, towlower() shall return the lowercase letter corresponding  to
       the argument passed; otherwise, it shall return the argument unchanged.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       setlocale()  ,  the  Base  Definitions  volume of IEEE Std 1003.1-2001, Chapter 7, Locale,
       <wctype.h>, <wchar.h>

COPYRIGHT

       Portions of this text are reprinted and  reproduced  in  electronic  form  from  IEEE  Std
       1003.1,  2003  Edition,  Standard  for Information Technology -- Portable Operating System
       Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003  by
       the  Institute  of  Electrical  and  Electronics Engineers, Inc and The Open Group. In the
       event of any discrepancy between this version and the original IEEE  and  The  Open  Group
       Standard,  the  original  IEEE  and  The  Open Group Standard is the referee document. The
       original Standard can be obtained online at http://www.opengroup.org/unix/online.html .