WCPNCPY
Section: Linux Programmer's Manual (3)
Updated: 2019-03-06
Page Index
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
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
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
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)
COLOPHON
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project.
A description of the project,
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and the latest version of this page,
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https://www.kernel.org/doc/man-pages/.