wcsncmp(3) Library Functions Manual wcsncmp(3)
NAME
wcsncmp - compare two fixed-size wide-character strings
LIBRARY
Standard C library (libc, -lc)
SYNOPSIS
#include <wchar.h>
int wcsncmp(const wchar_t s1[.n], const wchar_t s2[.n], 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 ex-
tends 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 attrib-
utes(7).
┌───────────────────────────────────────────┬───────────────┬─────────┐
│ Interface │ Attribute │ Value │
├───────────────────────────────────────────┼───────────────┼─────────┤
│ wcsncmp() │ Thread safety │ MT-Safe │
└───────────────────────────────────────────┴───────────────┴─────────┘
STANDARDS
C11, POSIX.1-2008.
HISTORY
POSIX.1-2001, C99.
SEE ALSO
strncmp(3), wcsncasecmp(3)
Linux man-pages 6.7 2023-10-31 wcsncmp(3)
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