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wcscoll(3) [freebsd man page]

WCSCOLL(3)						   BSD Library Functions Manual 						WCSCOLL(3)

NAME
wcscoll -- compare wide strings according to current collation 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 return from wcscoll(), an error has occurred. ERRORS
The wcscoll() function will fail if: [EILSEQ] An invalid wide character code was specified. [ENOMEM] Cannot allocate enough memory for temporary 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 single-byte LC_CTYPE locales, and falls back to using wcscmp() in locales with extended character sets. BSD
October 4, 2002 BSD

Check Out this Related Man Page

WCSXFRM(3)						   BSD Library Functions Manual 						WCSXFRM(3)

NAME
wcsxfrm -- transform a wide string under locale LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <wchar.h> size_t wcsxfrm(wchar_t * restrict dst, const wchar_t * restrict src, size_t n); DESCRIPTION
The wcsxfrm() function transforms a null-terminated wide character string pointed to by src according to the current locale collation order then copies the transformed string into dst. No more than n wide characters are copied into dst, including the terminating null character added. If n is set to 0 (it helps to determine an actual size needed for transformation), dst is permitted to be a NULL pointer. Comparing two strings using wcscmp() after wcsxfrm() is equivalent to comparing two original strings with wcscoll(). RETURN VALUES
Upon successful completion, wcsxfrm() returns the length of the transformed string not including the terminating null character. If this value is n or more, the contents of dst are indeterminate. SEE ALSO
setlocale(3), strxfrm(3), wcscmp(3), wcscoll(3) STANDARDS
The wcsxfrm() function conforms to ISO/IEC 9899:1999 (``ISO C99''). BUGS
The current implementation of wcsxfrm() only works in single-byte LC_CTYPE locales, and falls back to using wcsncpy() in locales with extended character sets. Comparing two strings using wcscmp() after wcsxfrm() is not always equivalent to comparison with wcscoll(); wcsxfrm() only stores information about primary collation weights into dst, whereas wcscoll() compares characters using both primary and secondary weights. BSD
October 4, 2002 BSD
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