towupper man page on Raspbian

towupper man page on Raspbian

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TOWUPPER(3)		   Linux Programmer's Manual		   TOWUPPER(3)

NAME
       towupper - convert a wide character to uppercase

SYNOPSIS
       #include <wctype.h>

       wint_t towupper(wint_t wc);

DESCRIPTION
       The  towupper()	function is the wide-character equivalent of the toup‐
       per(3) function.	 If wc is a wide character, it is converted to	upper‐
       case.  Characters which do not have case are returned unchanged.	 If wc
       is WEOF, WEOF is returned.

RETURN VALUE
       The towupper() function returns the uppercase equivalent of wc, or WEOF
       if wc is WEOF.

CONFORMING TO
       C99.

NOTES
       The behavior of towupper() depends on the LC_CTYPE category of the cur‐
       rent locale.

       This function is not very appropriate for dealing with Unicode  charac‐
       ters,  because  Unicode knows about three cases: upper, lower and title
       case.

SEE ALSO
       iswupper(3), towctrans(3), towlower(3)

COLOPHON
       This page is part of release 3.27 of the Linux  man-pages  project.   A
       description  of	the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

GNU				  1999-07-25			   TOWUPPER(3)

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