wcsnlen (3) Linux Manual Page

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

Synopsis

#include <wchar.h>

size_t wcsnlen(const wchar_t *s, 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

Description

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’