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
       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 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].

ATTRIBUTES

       For an explanation of the terms used in this section, see attributes(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)