wcslen - determine the length of a wide-character string

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

       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').

       POSIX.1-2001, C99.

       Standard C library (libc, -lc)

       wcslen - determine the length of a wide-character string

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

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

strlen(3)

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

       C11, POSIX.1-2008.

#include<wchar.h>size_twcslen(constwchar_t*s);