wcslen(3) — Linux manual page

wcslen(3)               Library Functions Manual               wcslen(3)

NAME

       wcslen - determine the length of a wide-character string

LIBRARY

       Standard C library (libc, -lc)

SYNOPSIS

       #include <wchar.h>

       size_t wcslen(const wchar_t *s);

DESCRIPTION

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

RETURN VALUE

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

ATTRIBUTES

       For an explanation of the terms used in this section, see
       attributes(7).
       ┌─────────────────────────────────────┬───────────────┬─────────┐
       │ Interface                           │ Attribute     │ Value   │
       ├─────────────────────────────────────┼───────────────┼─────────┤
       │ wcslen()                            │ Thread safety │ MT-Safe │
       └─────────────────────────────────────┴───────────────┴─────────┘

STANDARDS

       C11, POSIX.1-2008.

HISTORY

       POSIX.1-2001, C99.

NOTES

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

SEE ALSO

       strlen(3)

COLOPHON

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Linux man-pages 6.9.1          2024-06-15                      wcslen(3)

Pages that refer to this page: strlen(3), wcsnlen(3), signal-safety(7)

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