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man:wcpncpy

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 *dest, const wchar_t *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  stp-
     ncpy(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 wcslen(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 char-
     acters 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)

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 2016-03-15 WCPNCPY(3)

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