towupper(3C) Standard C Library Functions towupper(3C)NAMEtowupper - 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() repre‐
sents 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 argu‐
ment unchanged.
ERRORS
No errors are defined.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│CSI │Enabled │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Standard │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │MT-Safe │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOiswalpha(3C), setlocale(3C), towlower(3C), attributes(5), standards(5)SunOS 5.10 14 Aug 2002 towupper(3C)
