towupper(3C)
NAME
towupper − transliterate lower-case wide-character code to upper-case
SYNOPSIS
#include <wchar.h> wint_t towupper(wint_t wc);
DESCRIPTION
The towupper() function has as a domain a type wint_t, the value of which must be a character representable as a wchar_t, and must be 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 argument is returned unchanged. If the argument of towupper() represents a lower-case wide-character code (as defined by character type information in the program locale category LC_CTYPE), the result is the corresponding upper-case wide-character code. All other arguments in the domain are returned unchanged.
RETURN VALUES
Upon successful completion, towupper() returns the upper-case letter corresponding to the argument passed. Otherwise, it returns the argument unchanged.
ERRORS
No errors are defined.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| MT-Level | MT-Safe |
| CSI | Enabled |
SEE ALSO
iswalpha(3C), setlocale(3C), towlower(3C), attributes(5)
SunOS 5.6 — Last change: 20 Dec 1996