wcsncmp - compare two fixed-size wide-character strings
int wcsncmp(const wchar_t *s1, const wchar_t *s2, size_t n);
The wcsncmp() function is the wide-character equivalent of the
strncmp(3) function. It compares the wide-character string pointed to
by s1 and the wide-character string pointed to by s2, but at
most n wide characters from each string. In each string, the comparison
extends only up to the first occurrence of a null wide character (L'\0'), if
The wcsncmp() function returns zero if the wide-character strings at
s1 and s2, truncated to at most length n, are equal. It
returns an integer greater than zero if at the first differing position
i (i < n), the corresponding wide-character
s1[i] is greater than s2[i]. It returns an integer less than
zero if at the first differing position i (i < n), the
corresponding wide-character s1[i] is less than s2[i].
For an explanation of the terms used in this section, see attributes(7).
POSIX.1-2001, POSIX.1-2008, C99.
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