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WCSCOLL(3)            DragonFly Library Functions Manual            WCSCOLL(3)


wcscoll, wcscoll_l -- compare wide strings according to current collation


Standard C Library (libc, -lc)


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


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(). The wcscoll_l() function is identical to wcscoll() but takes an explicit locale argument, whereas wcscoll() uses the current global or per-thread locale.


The wcscoll() and wcscoll_l() functions return 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.


The wcscoll() and wcscoll_l() functions will fail if: [EILSEQ] An invalid wide character code was specified. [ENOMEM] Cannot allocate enough memory for temporary buffers.


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


The wcscoll() function conforms to ISO/IEC 9899:1999 (``ISO C99''). The wcscoll_l() function conforms to IEEE Std 1003.1-2008 (``POSIX.1'').


The current implementation of wcscoll() and wcscoll_l() only works in single-byte LC_CTYPE locales, and falls back to using wcscmp() in locales with extended character sets. DragonFly 5.3 July 26, 2015 DragonFly 5.3

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