man:wcsncmp
WCSNCMP(3) Linux Programmer's Manual WCSNCMP(3)
NAME
wcsncmp - compare two fixed-size wide-character strings
SYNOPSIS
#include <wchar.h>
int wcsncmp(const wchar_t *s1, const wchar_t *s2, size_t n);
DESCRIPTION
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 any.
RETURN VALUE
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 inte-
ger 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].
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+----------+---------------+---------+ |Interface | Attribute | Value | +----------+---------------+---------+ |wcsncmp() | Thread safety | MT-Safe | +----------+---------------+---------+
CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C99.
SEE ALSO
strncmp(3), wcsncasecmp(3)
COLOPHON
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GNU 2015-08-08 WCSNCMP(3)
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