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WCPNCPY(3)                                                              Linux Programmer's Manual                                                             WCPNCPY(3)

NAME
       wcpncpy - copy a fixed-size string of wide characters, returning a pointer to its end

SYNOPSIS
       #include <wchar.h>

       wchar_t *wcpncpy(wchar_t *restrict dest, const wchar_t *restrict src,
                        size_t n);

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

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

DESCRIPTION
       The  wcpncpy()  function is the wide-character equivalent of the stpncpy(3) function.  It copies at most n wide characters from the wide-character string pointed
       to by src, including the terminating null wide (L'\0'), to the array pointed to by dest.  Exactly n wide characters are written  at  dest.   If  the  length  wc‐
       slen(src)  is  smaller  than  n,  the  remaining  wide characters in the array pointed to by dest are filled with L'\0' characters.  If the length wcslen(src) is
       greater than or equal to n, the string pointed to by dest will not be L'\0' terminated.

       The strings may not overlap.

       The programmer must ensure that there is room for at least n wide characters at dest.

RETURN VALUE
       wcpncpy() returns a pointer to the last wide character written, that is, dest+n-1.

ATTRIBUTES
       For an explanation of the terms used in this section, see attributes(7).

       ┌──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┬───────────────┬─────────┐
       │Interface                                                                                                                             │ Attribute     │ Value   │
       ├──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┼───────────────┼─────────┤
       │wcpncpy()                                                                                                                             │ Thread safety │ MT-Safe │
       └──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┴───────────────┴─────────┘

CONFORMING TO
       POSIX.1-2008.

SEE ALSO
       stpncpy(3), wcsncpy(3)

GNU                                                                            2021-03-22                                                                     WCPNCPY(3)