wcsncmp(3)

1wcsncmp(3)                 Library Functions Manual                 wcsncmp(3)
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NAME

6       wcsncmp - compare two fixed-size wide-character strings
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LIBRARY

9       Standard C library (libc, -lc)
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SYNOPSIS

12       #include <wchar.h>
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14       int wcsncmp(const wchar_t s1[.n], const wchar_t s2[.n], size_t n);
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DESCRIPTION

17       The   wcsncmp()  function  is  the  wide-character  equivalent  of  the
18       strncmp(3) function.  It compares the wide-character string pointed  to
19       by  s1  and  the  wide-character string pointed to by s2, but at most n
20       wide characters from each string.  In each string, the  comparison  ex‐
21       tends only up to the first occurrence of a null wide character (L'\0'),
22       if any.
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RETURN VALUE

25       The wcsncmp() function returns zero if the wide-character strings at s1
26       and  s2, truncated to at most length n, are equal.  It returns an inte‐
27       ger greater than zero if at the first differing position i (i < n), the
28       corresponding  wide-character  s1[i] is greater than s2[i].  It returns
29       an integer less than zero if at the first differing position i (i < n),
30       the corresponding wide-character s1[i] is less than s2[i].
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ATTRIBUTES

33       For  an  explanation  of  the  terms  used  in  this  section,  see at‐
34       tributes(7).
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36       ┌────────────────────────────────────────────┬───────────────┬─────────┐
37       │Interface                                   │ Attribute     │ Value   │
38       ├────────────────────────────────────────────┼───────────────┼─────────┤
39       │wcsncmp()                                   │ Thread safety │ MT-Safe │
40       └────────────────────────────────────────────┴───────────────┴─────────┘
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STANDARDS

43       C11, POSIX.1-2008.
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HISTORY

46       POSIX.1-2001, C99.
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