wcsncpy(3) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON

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

NAME         top

       wcsncpy - copy a fixed-size string of wide characters

SYNOPSIS         top

       #include <wchar.h>

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

DESCRIPTION         top

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

       The strings may not overlap.

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

RETURN VALUE         top

       wcsncpy() returns dest.

ATTRIBUTES         top

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

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

CONFORMING TO         top

       POSIX.1-2001, POSIX.1-2008, C99.

SEE ALSO         top

       strncpy(3)

COLOPHON         top

       This page is part of release 5.13 of the Linux man-pages project.
       A description of the project, information about reporting bugs,
       and the latest version of this page, can be found at
       https://www.kernel.org/doc/man-pages/.

GNU                            2021-03-22                     WCSNCPY(3)

Pages that refer to this page: strcpy(3)wcpncpy(3)signal-safety(7)