GENWiki

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

NAME

     wcsncpy - copy a fixed-size string of wide characters

SYNOPSIS

     #include <wchar.h>

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

DESCRIPTION

     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 char-
     acters at dest.

RETURN VALUE

     wcsncpy() returns dest.

ATTRIBUTES

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

     +----------+---------------+---------+
     |Interface | Attribute     | Value   |
     +----------+---------------+---------+
     |wcsncpy() | Thread safety | MT-Safe |
     +----------+---------------+---------+

CONFORMING TO

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

SEE ALSO

     strncpy(3)

COLOPHON

     This  page  is  part of release 4.16 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 2015-08-08 WCSNCPY(3)