glibc/wcsmbs/wcsncat.c

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/* Copyright (C) 1995-2013 Free Software Foundation, Inc.
update from main archive 970125 Sun Jan 26 05:41:42 1997 Ulrich Drepper <drepper@cygnus.com> * version.h (VERSION): Bump to 2.0. (RELEASE): Now it's "experimental". * Makefile (subdirs): Change $(malloc) to malloc. We have only one malloc implementation again. * malloc/*: Remove from GNU libc. * new-malloc/* Move to malloc/. * config.make.in (defines): Remove @USE_NEW_MALLOC@. * configure.in: Remove --enable-new-malloc option and check for malloc implementation choice. * malloc.h: We don't need to check for the implementation to use anymore. Simply include malloc/malloc.h. * malloc/Makefile (subdir): Change to malloc. * sysdeps/unix/sysv/linux/configure.in: Don't set malloc anymore. * Makefile: Add special goal to call generate only-MD5 based crypt library. * md5-crypt/Makefile: Likewise. * stdio-common/tstscanf.c: De-ANSI-declfy. Update copyright. (rounds): Change type to size_t to prevent warning. * wcsmbs/btowc.c: Reformat copyright. * wcsmbs/mbrlen.c: Likewise. * wcsmbs/mbsinit.c: Likewise. * wcsmbs/mbsnrtowcs.c: Likewise. * wcsmbs/mbsrtowcs.c: Likewise. * wcsmbs/wcpcpy.c: Likewise. * wcsmbs/wcpncpy.c: Likewise. * wcsmbs/wcscat.c: Likewise. * wcsmbs/wcscmp.c: Likewise. * wcsmbs/wcscoll.c: Likewise. * wcsmbs/wcscpy.c: Likewise. * wcsmbs/wcscspn.c: Likewise. * wcsmbs/wcsdup.c: Likewise. * wcsmbs/wcslen.c: Likewise. * wcsmbs/wcsncat.c: Likewise. * wcsmbs/wcsncpy.c: Likewise. * wcsmbs/wcsnrtombs.c: Likewise. * wcsmbs/wcsrtombs.c: Likewise. * wcsmbs/wcsspn.c: Likewise. * wcsmbs/wcsstr.c: Likewise. * wcsmbs/wcstod.c: Likewise. * wcsmbs/wcstof.c: Likewise. * wcsmbs/wcstok.c: Likewise. * wcsmbs/wcstol.c: Likewise. * wcsmbs/wcstold.c: Likewise. * wcsmbs/wcstoq.c: Likewise. * wcsmbs/wcstoul.c: Likewise. * wcsmbs/wcstouq.c: Likewise. * wcsmbs/wcswidth.c: Likewise. * wcsmbs/wcsxfrm.c: Likewise. * wcsmbs/wctob.c: Likewise. * wcsmbs/wcwidth.c: Likewise. * wcsmbs/wcwidth.h: Likewise. * wcsmbs/wmemchr.c: Likewise. * wcsmbs/wmemcmp.c: Likewise. * wcsmbs/wmemmove.c: Likewise. * wcsmbs/wmemset.c: Likewise. Sat Jan 25 03:34:14 1997 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/termbits.h: Protect against multiple inclusion. Reported by a sun <asun@zoology.washington.edu>. Likewise for scanf4.c * stdlib/stdlib.h: Declare reentrant function from rand48 family
1997-01-26 06:33:35 +01:00
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
update from main archive 970125 Sun Jan 26 05:41:42 1997 Ulrich Drepper <drepper@cygnus.com> * version.h (VERSION): Bump to 2.0. (RELEASE): Now it's "experimental". * Makefile (subdirs): Change $(malloc) to malloc. We have only one malloc implementation again. * malloc/*: Remove from GNU libc. * new-malloc/* Move to malloc/. * config.make.in (defines): Remove @USE_NEW_MALLOC@. * configure.in: Remove --enable-new-malloc option and check for malloc implementation choice. * malloc.h: We don't need to check for the implementation to use anymore. Simply include malloc/malloc.h. * malloc/Makefile (subdir): Change to malloc. * sysdeps/unix/sysv/linux/configure.in: Don't set malloc anymore. * Makefile: Add special goal to call generate only-MD5 based crypt library. * md5-crypt/Makefile: Likewise. * stdio-common/tstscanf.c: De-ANSI-declfy. Update copyright. (rounds): Change type to size_t to prevent warning. * wcsmbs/btowc.c: Reformat copyright. * wcsmbs/mbrlen.c: Likewise. * wcsmbs/mbsinit.c: Likewise. * wcsmbs/mbsnrtowcs.c: Likewise. * wcsmbs/mbsrtowcs.c: Likewise. * wcsmbs/wcpcpy.c: Likewise. * wcsmbs/wcpncpy.c: Likewise. * wcsmbs/wcscat.c: Likewise. * wcsmbs/wcscmp.c: Likewise. * wcsmbs/wcscoll.c: Likewise. * wcsmbs/wcscpy.c: Likewise. * wcsmbs/wcscspn.c: Likewise. * wcsmbs/wcsdup.c: Likewise. * wcsmbs/wcslen.c: Likewise. * wcsmbs/wcsncat.c: Likewise. * wcsmbs/wcsncpy.c: Likewise. * wcsmbs/wcsnrtombs.c: Likewise. * wcsmbs/wcsrtombs.c: Likewise. * wcsmbs/wcsspn.c: Likewise. * wcsmbs/wcsstr.c: Likewise. * wcsmbs/wcstod.c: Likewise. * wcsmbs/wcstof.c: Likewise. * wcsmbs/wcstok.c: Likewise. * wcsmbs/wcstol.c: Likewise. * wcsmbs/wcstold.c: Likewise. * wcsmbs/wcstoq.c: Likewise. * wcsmbs/wcstoul.c: Likewise. * wcsmbs/wcstouq.c: Likewise. * wcsmbs/wcswidth.c: Likewise. * wcsmbs/wcsxfrm.c: Likewise. * wcsmbs/wctob.c: Likewise. * wcsmbs/wcwidth.c: Likewise. * wcsmbs/wcwidth.h: Likewise. * wcsmbs/wmemchr.c: Likewise. * wcsmbs/wmemcmp.c: Likewise. * wcsmbs/wmemmove.c: Likewise. * wcsmbs/wmemset.c: Likewise. Sat Jan 25 03:34:14 1997 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/termbits.h: Protect against multiple inclusion. Reported by a sun <asun@zoology.washington.edu>. Likewise for scanf4.c * stdlib/stdlib.h: Declare reentrant function from rand48 family
1997-01-26 06:33:35 +01:00
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
update from main archive 970125 Sun Jan 26 05:41:42 1997 Ulrich Drepper <drepper@cygnus.com> * version.h (VERSION): Bump to 2.0. (RELEASE): Now it's "experimental". * Makefile (subdirs): Change $(malloc) to malloc. We have only one malloc implementation again. * malloc/*: Remove from GNU libc. * new-malloc/* Move to malloc/. * config.make.in (defines): Remove @USE_NEW_MALLOC@. * configure.in: Remove --enable-new-malloc option and check for malloc implementation choice. * malloc.h: We don't need to check for the implementation to use anymore. Simply include malloc/malloc.h. * malloc/Makefile (subdir): Change to malloc. * sysdeps/unix/sysv/linux/configure.in: Don't set malloc anymore. * Makefile: Add special goal to call generate only-MD5 based crypt library. * md5-crypt/Makefile: Likewise. * stdio-common/tstscanf.c: De-ANSI-declfy. Update copyright. (rounds): Change type to size_t to prevent warning. * wcsmbs/btowc.c: Reformat copyright. * wcsmbs/mbrlen.c: Likewise. * wcsmbs/mbsinit.c: Likewise. * wcsmbs/mbsnrtowcs.c: Likewise. * wcsmbs/mbsrtowcs.c: Likewise. * wcsmbs/wcpcpy.c: Likewise. * wcsmbs/wcpncpy.c: Likewise. * wcsmbs/wcscat.c: Likewise. * wcsmbs/wcscmp.c: Likewise. * wcsmbs/wcscoll.c: Likewise. * wcsmbs/wcscpy.c: Likewise. * wcsmbs/wcscspn.c: Likewise. * wcsmbs/wcsdup.c: Likewise. * wcsmbs/wcslen.c: Likewise. * wcsmbs/wcsncat.c: Likewise. * wcsmbs/wcsncpy.c: Likewise. * wcsmbs/wcsnrtombs.c: Likewise. * wcsmbs/wcsrtombs.c: Likewise. * wcsmbs/wcsspn.c: Likewise. * wcsmbs/wcsstr.c: Likewise. * wcsmbs/wcstod.c: Likewise. * wcsmbs/wcstof.c: Likewise. * wcsmbs/wcstok.c: Likewise. * wcsmbs/wcstol.c: Likewise. * wcsmbs/wcstold.c: Likewise. * wcsmbs/wcstoq.c: Likewise. * wcsmbs/wcstoul.c: Likewise. * wcsmbs/wcstouq.c: Likewise. * wcsmbs/wcswidth.c: Likewise. * wcsmbs/wcsxfrm.c: Likewise. * wcsmbs/wctob.c: Likewise. * wcsmbs/wcwidth.c: Likewise. * wcsmbs/wcwidth.h: Likewise. * wcsmbs/wmemchr.c: Likewise. * wcsmbs/wmemcmp.c: Likewise. * wcsmbs/wmemmove.c: Likewise. * wcsmbs/wmemset.c: Likewise. Sat Jan 25 03:34:14 1997 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/termbits.h: Protect against multiple inclusion. Reported by a sun <asun@zoology.washington.edu>. Likewise for scanf4.c * stdlib/stdlib.h: Declare reentrant function from rand48 family
1997-01-26 06:33:35 +01:00
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <wchar.h>
/* Append no more than N wide-character of SRC onto DEST. */
wchar_t *
wcsncat (dest, src, n)
wchar_t *dest;
const wchar_t *src;
size_t n;
{
wchar_t c;
wchar_t * const s = dest;
/* Find the end of DEST. */
do
c = *dest++;
while (c != L'\0');
/* Make DEST point before next character, so we can increment
it while memory is read (wins on pipelined cpus). */
dest -= 2;
if (n >= 4)
{
size_t n4 = n >> 2;
do
{
c = *src++;
*++dest = c;
if (c == L'\0')
return s;
c = *src++;
*++dest = c;
if (c == L'\0')
return s;
c = *src++;
*++dest = c;
if (c == L'\0')
return s;
c = *src++;
*++dest = c;
if (c == L'\0')
return s;
} while (--n4 > 0);
n &= 3;
}
while (n > 0)
{
c = *src++;
*++dest = c;
if (c == L'\0')
return s;
n--;
}
if (c != L'\0')
*++dest = L'\0';
return s;
}