NAME
towupper - convert a wide character to uppercase SYNOPSIS
#include
wintt towupper(wintt 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. ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). ┌─────────────┬───────────────┬────────────────┐ │Interface │ Attribute │ Value │ ├─────────────┼───────────────┼────────────────┤
│towupper() │ Thread safety │ MT-Safe locale │ ├─────────────┼───────────────┼────────────────┤
│towupperl() │ Thread safety │ MT-Safe │ └─────────────┴───────────────┴────────────────┘ VERSIONS The towupperl() function first appeared in glibc 2.3. CONFORMING TO C99. NOTES The behavior of towupper() depends on the LCCTYPE 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
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GNU 1999-07-25 TOWUPPER(3)