Originální popis anglicky:
wcsnlen - determine the length of a fixed-size wide-character string
Návod, kniha: Linux Programmer's Manual
#include <wchar.h>
size_t wcsnlen(const wchar_t *s, size_t maxlen);
The
wcsnlen function is the wide-character equivalent of the
strnlen function. It returns the number of wide-characters in the
string pointed to by
s, not including the terminating L'\0' character,
but at most
maxlen. In doing this,
wcsnlen looks only at the
first
maxlen wide-characters at
s and never beyond
s+maxlen.
The
wcsnlen function returns
wcslen(s), if that is less than
maxlen, or
maxlen if there is no L'\0' character among the first
maxlen wide characters pointed to by
s.
This function is a GNU extension.
strnlen(3),
wcslen(3)
