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wcsnlen(3)              Library Functions Manual              wcsnlen(3)

ИМЯ

       wcsnlen - determine the length of a fixed-size wide-character
       string

БИБЛИОТЕКА

       Standard C library (libc, -lc)

СИНТАКСИС

       #include <wchar.h>

       size_t wcsnlen(const wchar_t s[.maxlen], size_t maxlen);

   Feature Test Macro Requirements for glibc (see
   feature_test_macros(7)):

       wcsnlen():
           Since glibc 2.10:
               _POSIX_C_SOURCE >= 200809L
           Before glibc 2.10:
               _GNU_SOURCE

ОПИСАНИЕ

       The wcsnlen() function is the wide-character equivalent of the
       strnlen(3) function.  It returns the number of wide-characters in
       the string pointed to by s, not including the terminating null
       wide character (L'\0'), but at most maxlen wide characters (note:
       this parameter is not a byte count).  In doing this, wcsnlen()
       looks at only the first maxlen wide characters at s and never
       beyond s[maxlen-1].

ЗНАЧЕНИЕ, ВОЗВРАЩАЕМОЕ ФУНКЦИЕЙ

       The wcsnlen() function returns wcslen(s), if that is less than
       maxlen, or maxlen if there is no null wide character among the
       first maxlen wide characters pointed to by s.

АТРИБУТЫ

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

СТАНДАРТЫ

       POSIX.1-2008.

ИСТОРИЯ

       glibc 2.1.

СМОТРИТЕ ТАКЖЕ

       strnlen(3), wcslen(3)

КОЛОФОН

       This page is part of the man-pages (Linux kernel and C library
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Linux man-pages 6.9.1          2024-06-15                     wcsnlen(3)

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