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TOWUPPER(3) FreeBSD Library Functions Manual TOWUPPER(3)
NAME
towupper - lower case to upper case letter conversion (wide character
version)
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <wctype.h>
wint_t
towupper(wint_t wc);
DESCRIPTION
The towupper() function converts a lower-case letter to the corresponding
upper-case letter.
RETURN VALUES
If the argument is a lower-case letter, the towupper() function returns
the corresponding upper-case letter if there is one; otherwise the
argument is returned unchanged.
SEE ALSO
iswupper(3), toupper(3), towlower(3), wctrans(3)
STANDARDS
The towupper() function conforms to ISO/IEC 9899:1999 ("ISO C99").
FreeBSD 14.0-RELEASE-p6 October 3, 2002 FreeBSD 14.0-RELEASE-p6