wcscoll(3)

NAME

wcscoll - compare wide strings according to current colla
tion

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <wchar.h>
int
wcscoll(const wchar_t *s1, const wchar_t *s2);

DESCRIPTION

The wcscoll() function compares the null-terminated strings
s1 and s2
according to the current locale collation order. In the
``C'' locale,
wcscoll() is equivalent to wcscmp().

RETURN VALUES

The wcscoll() function returns an integer greater than,
equal to, or less
than 0, if s1 is greater than, equal to, or less than s2.
No return value is reserved to indicate errors; callers
should set errno
to 0 before calling wcscoll(). If it is non-zero upon re
turn from
wcscoll(), an error has occurred.

ERRORS

The wcscoll() function will fail if:

[EILSEQ] An invalid wide character code was speci
fied.
[ENOMEM] Cannot allocate enough memory for tempo
rary buffers.

SEE ALSO

setlocale(3), strcoll(3), wcscmp(3), wcsxfrm(3)

STANDARDS

The wcscoll() function conforms to ISO/IEC 9899:1999 (``ISO
C99'').

BUGS

The current implementation of wcscoll() only works in sin
gle-byte
LC_CTYPE locales, and falls back to using wcscmp() in lo
cales with
extended character sets.
BSD October 4, 2002
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