wcslen(3)

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

6       wcslen - determine the length of a wide-character string
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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       size_t wcslen(const wchar_t *s);
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DESCRIPTION

17       The wcslen() function is the wide-character equivalent of the strlen(3)
18       function.  It  determines  the  length  of  the  wide-character  string
19       pointed to by s, excluding the terminating null wide character (L'\0').
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RETURN VALUE

22       The wcslen() function returns the number of wide characters in s.
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ATTRIBUTES

25       For  an  explanation  of  the  terms  used  in  this  section,  see at‐
26       tributes(7).
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28       ┌────────────────────────────────────────────┬───────────────┬─────────┐
29       │Interface                                   │ Attribute     │ Value   │
30       ├────────────────────────────────────────────┼───────────────┼─────────┤
31       │wcslen()                                    │ Thread safety │ MT-Safe │
32       └────────────────────────────────────────────┴───────────────┴─────────┘
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STANDARDS

35       C11, POSIX.1-2008.
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HISTORY

38       POSIX.1-2001, C99.
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NOTES

41       In cases where the input buffer may not contain a terminating null wide
42       character, wcsnlen(3) should be used instead.
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