wcscoll, wscoll - wide character string comparison using
int wcscoll(const wchar_t *ws1, const wchar_t *ws2);
int wscoll(const wchar_t *ws1, const wchar_t *ws2);
The wcscoll() and wscoll() functions compare the wide char-
acter string pointed to by ws1 to the wide character string
pointed to by ws2, both interpreted as appropriate to the
LC_COLLATE category of the current locale.
Upon successful completion, wcscoll() and wscoll() return an
integer greater than, equal to, or less than 0, depending
upon whether the wide character string pointed to by ws1 is
greater than, equal to, or less than the wide character
string pointed to by ws2, when both are interpreted as
appropriate to the current locale. On error, wcscoll() and
wscoll() may set errno, but no return value is reserved to
indicate an error.
The wcscoll() and wscoll() functions may fail if:
The ws1 or ws2 arguments contain wide character codes
outside the domain of the collating sequence.
The function is not supported.
Because no return value is reserved to indicate an error, an
application wishing to check for error situations should set
errno to 0, call either wcscoll() or wscoll(), then check
errno and if it is non-zero, assume an error has occurred.
The wcsxfrm(3C) and wcscmp(3C) functions should be used for
sorting large lists.
The wcscoll() and wscoll() functions can be used safely in
multithreaded applications as long as setlocale(3C) is not
being called to change the locale.
See attributes(5) for descriptions of the following attri-
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| MT-Level | MT-Safe with exceptions |
| CSI | Enabled |
setlocale(3C), wcscmp(3C), wcsxfrm(3C), attributes(5)
Man(1) output converted with