Section (3) wcpncpy


Linux manual pages Section 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);
 
[Note] Note
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_zsingle_quotesz__zsingle_quotesz_), 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_zsingle_quotesz__zsingle_quotesz_ characters. If the length wcslen(src) is greater than or equal to n, the string pointed to by dest will not be L_zsingle_quotesz__zsingle_quotesz_ 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

This page is part of release 5.04 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/.


  Copyright (c) Bruno Haible <haibleclisp.cons.org>

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References consulted:
  GNU glibc-2 source code and manual
  Dinkumware C library reference http://www.dinkumware.com/
  OpenGroup_zsingle_quotesz_s Single UNIX specification http://www.UNIX-systems.org/online.html