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2003-02-01  Ulrich Drepper  <drepper@redhat.com>

	* time/tzfile.c (__tzfile_compute): Change return value type to
	void.  Adjust return statements.
	* include/time.h (__tzfile_compute): Adjust prototype.

2003-02-01  Jim Meyering  <jim@meyering.net>

	* time/tzset.c (__tz_convert): Remove dead code; __tzfile_compute
	always returns 1.

2003-01-31  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/unix/sysv/linux/powerpc/powerpc64/fe_nomask.c
	[!__ASSUME_NEW_PRCTL_SYSCALL]: Noop prctl syscall and set ENOSYS.

2003-01-31  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/unix/sysv/linux/powerpc/powerpc64/getcontext.S
	[!__ASSUME_NEW_RT_SIGRETURN_SYSCALL]: Generate ENOSYS stub.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S
	[!__ASSUME_NEW_RT_SIGRETURN_SYSCALL]: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S
	[!__ASSUME_NEW_RT_SIGRETURN_SYSCALL]: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S
	[!__ASSUME_NEW_RT_SIGRETURN_SYSCALL]: Likewise.

2003-01-31  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/unix/sysv/linux/configure.in: Change arch_minimum_kernel
	back to 2.4.19 for powerpc64.
	* sysdeps/unix/sysv/linux/kernel-features.h
	(__ASSUME_NEW_PRCTL_SYSCALL): Define for powerpc64.
	(__ASSUME_NEW_RT_SIGRETURN_SYSCALL): Define for powerpc64.

2003-02-01  Ulrich Drepper  <drepper@redhat.com>

	* wcsmbs/wcscpy.c (wcscpy): Add alternative implementation for
	platforms with strange alignment requirements on wchar_t.
This commit is contained in:
Ulrich Drepper 2003-02-01 20:53:16 +00:00
parent 4a7d6545ce
commit 38e68573bc
13 changed files with 362 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
ChangeLog
View File

@ -1,3 +1,43 @@
2003-02-01 Ulrich Drepper <drepper@redhat.com>
* time/tzfile.c (__tzfile_compute): Change return value type to
void. Adjust return statements.
* include/time.h (__tzfile_compute): Adjust prototype.
2003-02-01 Jim Meyering <jim@meyering.net>
* time/tzset.c (__tz_convert): Remove dead code; __tzfile_compute
always returns 1.
2003-01-31 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/unix/sysv/linux/powerpc/powerpc64/fe_nomask.c
[!__ASSUME_NEW_PRCTL_SYSCALL]: Noop prctl syscall and set ENOSYS.
2003-01-31 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/unix/sysv/linux/powerpc/powerpc64/getcontext.S
[!__ASSUME_NEW_RT_SIGRETURN_SYSCALL]: Generate ENOSYS stub.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S
[!__ASSUME_NEW_RT_SIGRETURN_SYSCALL]: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S
[!__ASSUME_NEW_RT_SIGRETURN_SYSCALL]: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S
[!__ASSUME_NEW_RT_SIGRETURN_SYSCALL]: Likewise.
2003-01-31 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/unix/sysv/linux/configure.in: Change arch_minimum_kernel
back to 2.4.19 for powerpc64.
* sysdeps/unix/sysv/linux/kernel-features.h
(__ASSUME_NEW_PRCTL_SYSCALL): Define for powerpc64.
(__ASSUME_NEW_RT_SIGRETURN_SYSCALL): Define for powerpc64.
2003-02-01 Ulrich Drepper <drepper@redhat.com>
* wcsmbs/wcscpy.c (wcscpy): Add alternative implementation for
platforms with strange alignment requirements on wchar_t.
2003-01-31 Andreas Schwab <schwab@suse.de>
* sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove __GI_*

6
include/time.h
View File

@ -36,9 +36,9 @@ extern int __use_tzfile attribute_hidden;
extern void __tzfile_read (const char *file, size_t extra,
char **extrap);
extern int __tzfile_compute (time_t timer, int use_localtime,
long int *leap_correct, int *leap_hit,
struct tm *tp);
extern void __tzfile_compute (time_t timer, int use_localtime,
long int *leap_correct, int *leap_hit,
struct tm *tp);
extern void __tzfile_default (const char *std, const char *dst,
long int stdoff, long int dstoff);

207
localedata/locales/ml_IN Normal file
View File

@ -0,0 +1,207 @@
comment_char %
escape_char /
% Malayalam language locale for India.
% Contributed by Free Software Foundation of India http://gnu.org.in
% E-Mail : gnu@gnu.org.in
LC_IDENTIFICATION
title " Malayalam language locale for India"
source "Free Software Foundation of India, Trivandrum"
address ""
contact ""
email "bug-glibc@gnu.org"
tel ""
fax ""
language "Malayalam"
territory "India"
revision "0.1"
date "2003-February-01"
%
category "ml_IN:2000";LC_IDENTIFICATION
category "ml_IN:2000";LC_CTYPE
category "ml_IN:2000";LC_COLLATE
category "ml_IN:2000";LC_TIME
category "ml_IN:2000";LC_NUMERIC
category "ml_IN:2000";LC_MONETARY
category "ml_IN:2000";LC_MESSAGES
category "ml_IN:2000";LC_PAPER
category "ml_IN:2000";LC_NAME
category "ml_IN:2000";LC_ADDRESS
category "ml_IN:2000";LC_TELEPHONE
category "ml_IN:2000";LC_MEASUREMENT
END LC_IDENTIFICATION
LC_CTYPE
copy "i18n"
translit_start
include "translit_combining";""
translit_end
END LC_CTYPE
%
%
LC_COLLATE
% Copy the template from ISO/IEC 14651
copy "iso14651_t1"
END LC_COLLATE
LC_MONETARY
% This is the POSIX Locale definition the LC_MONETARY category
% generated by IBM Basic CountryPack Transformer.
% These are generated based on XML base Locale defintion file
% for IBM Class for Unicode.
%
int_curr_symbol "<U0049><U004E><U0052><U0020>"
currency_symbol "<U0D30><U0D42>"
mon_decimal_point "<U002E>"
mon_thousands_sep "<U002C>"
mon_grouping 3;2
positive_sign ""
negative_sign "<U002D>"
int_frac_digits 2
frac_digits 2
p_cs_precedes 1
p_sep_by_space 1
n_cs_precedes 1
n_sep_by_space 1
p_sign_posn 1
n_sign_posn 1
%
END LC_MONETARY
%
LC_NUMERIC
% This is the POSIX Locale definition for the LC_NUMERIC category.
%
decimal_point "<U002E>"
thousands_sep "<U002C>"
grouping 3;2
%
END LC_NUMERIC
%
LC_TIME
% This is the POSIX Locale definition for the LC_TIME category
% generated by IBM Basic CountryPack Transformer.
% These are generated based on XML base Locale difintion file
% for IBM Class for Unicode.
%
% Abbreviated weekday names (%a)
abday "<U0D1E><U0D3E>";"<U0D24><U0D3F>";/
"<U0D1A><U0D4A>";"<U0D2C><U0D41>";/
"<U0D35><U0D4D><U0D2F><U0D3E>";"<U0D35><U0D46>";/
"<U0D36>"
%
% Full weekday names (%A)
day "<U0D1E><U0D3E><U0D2F><U0D31><U0D41><U0D4D>";/
"<U0D24><U0D3F><U0D19><U0D4D><U0D15><U0D33><U0D41><U0D4D>";/
"<U0D1A><U0D4A><U0D35><U0D4D><U0D35>";/
"<U0D2C><U0D41><U0D27><U0D28><U0D41><U0D4D>";/
"<U0D35><U0D4D><U0D2F><U0D3E><U0D34><U0D02>";/
"<U0D35><U0D46><U0D33><U0D4D><U0D33><U0D3F>";/
"<U0D36><U0D28><U0D3F>"
%
% Abbreviated month names (%b)
abmon "<U0D1C><U0D28><U0D41>";/
"<U0D2B><U0D46><U0D2C><U0D4D>";/
"<U0D2E><U0D3E><U0D31><U0D4D>";/
"<U0D0F><U0D2A><U0D4D><U0D31><U0D3F><U0D32><U0D4D>";/
"<U0D46><U0D2E><U0D2F><U0D4D>";/
"<U0D1C><U0D42><U0D23><U0D4D>";/
"<U0D1C><U0D42><U0D48><U0D32>";/
"<U0D06><U0D17>";/
"<U0D46><U0D38><U0D2A><U0D4D><U0D24><U0D02>";/
"<U0D12><U0D15><U0D4D><U0D48><U0D1F>";/
"<U0D28><U0D35><U0D02>";/
"<U0D21><U0D3F><U0D38><U0D02>"
%
% FULL month names (%B)
mon "<U0D1C><U0D28><U0D41><U0D35><U0D30><U0D3F>";/
"<U0D2B><U0D46><U0D2C><U0D4D><U0D30><U0D41><U0D35><U0D30><U0D3F>";/
"<U0D2E><U0D3E><U0D31><U0D41><U0D4D><U0D1A><U0D4D><U0D1A><U0D4D>";/
"<U0D0F><U0D2A><U0D4D><U0D31><U0D3F><U0D32><U0D41><U0D4D>";/
"<U0D2E><U0D46><U0D2F><U0D4D>";/
"<U0D1C><U0D42><U0D23><U0D41><U0D4D>";/
"<U0D1C><U0D42><U0D32><U0D48>";/
"<U0D06><U0D17><U0D38><U0D4D><U0D24><U0D4D>";/
"<U0D38><U0D46><U0D2A><U0D4D><U0D24><U0D02><U0D2C><U0D31><U0D41><U0D4D>";/
"<U0D12><U0D15><U0D4D><U0D1F><U0D4B><U0D2C><U0D31><U0D41><U0D4D>";/
"<U0D28><U0D35><U0D02><U0D2C><U0D31><U0D41><U0D4D>";/
"<U0D21><U0D3F><U0D38><U0D02><U0D2C><U0D31><U0D41><U0D4D>"
%
%
% Equivalent of AM PM
am_pm "<U0D30><U0D3E><U0D35><U0D3F><U0D32><U0D46>";"<U0D35><U0D48><U0D15><U0D41>"
%
% Appropriate date and time representation
% %A %d %B %Y %I:%M:%S %Z
d_t_fmt "<U0025><U0041><U0020><U0025><U0064><U0020><U0025><U0042><U0020><U0025><U0059><U0020><U0025><U0049><U003A><U0025><U004D><U003A><U0025><U0053><U0020><U0025><U0070><U0020><U0025><U005A>"
%
% Appropriate date representation
% %A %d %B %Y
d_fmt "<U0025><U0041><U0020><U0025><U0064><U0020><U0025><U0042><U0020><U0025><U0059>"
%
% Appropriate time representation
% %I:%M:%S %Z
t_fmt "<U0025><U0049><U003A><U0025><U004D><U003A><U0025><U0053><U0020><U0020><U0025><U005A>"
%
% Appropriate 12 h time representation (%r)
t_fmt_ampm "<U0025><U0049><U003A><U0025><U004D><U003A><U0025><U0053><U0020><U0025><U0070><U0020><U0025><U005A>"
%
END LC_TIME
%
LC_MESSAGES
% This is the POSIX Locale definition for the LC_MESSAGES category
% generated by IBM Basic CountryPack Transformer.
% These are generated based on XML base Locale difintion file
% for IBM Class for Unicode.
%
% ^[\u0d05\u0d24\u0d46]
yesexpr "<U005E><U005B><U0D05><U0D24><U0D46><U005D>"
%
%
% ^[\u0d05\u0d32\u0d4d\u0d32]
noexpr "<U005E><U005B><U0D05><U0D32><U0D4D><U0D32><U005D>"
%
% \u0d05\u0d24\u0d46
yesstr "<U0D05><U0D24><U0D46>"
%
% \u0d05\u0d32\u0d4d\u0d32
nostr "<U0D05><U0D32><U0D4D><U0D32>"
%
END LC_MESSAGES
%
LC_PAPER
% This is the ISO_IEC TR14652 Locale definition for the LC_PAPER category
% generated by IBM Basic CountryPack Transformer.
height 297
width 210
END LC_PAPER
%
LC_NAME
% This is the ISO_IEC TR14652 Locale definition for the LC_NAME category
% generated by IBM Basic CountryPack Transformer.
%
%
name_fmt "<U0025><U0070><U0025><U0074><U0025><U0066><U0025><U0074><U0025><U0067>"
name_gen "<U0D36><U0D4D><U0D30><U0D40>"
name_mr "<U0D36><U0D4D><U0D30><U0D40><U0D2E><U0D3E><U0D28><U0D41><U0D4D>"
name_mrs "<U0D36><U0D4D><U0D30><U0D40><U0D2E><U0D24><U0D3F>"
name_miss "<U0D15><U0D41><U0D2E><U0D3E><U0D30><U0D3F>"
name_ms "<U0D36><U0D4D><U0D30><U0D40><U0D2E><U0D24><U0D3F>"
END LC_NAME
LC_ADDRESS
% This is the ISO_IEC TR14652 Locale definition for the LC_ADDRESS category
% generated by IBM Basic CountryPack Transformer.
postal_fmt "<U0025><U007A><U0025><U0063><U0025><U0054><U0025><U0073><U0025><U0062><U0025><U0065><U0025><U0072>"
END LC_ADDRESS
%
LC_TELEPHONE
% This is the ISO_IEC TR14652 Locale definition for the LC_TELEPHONE
% generated by IBM Basic CountryPack Transformer.
tel_int_fmt "<U002B><U0025><U0063><U0020><U003B><U0025><U0061><U0020><U003B><U0025><U006C>"
END LC_TELEPHONE
%
LC_MEASUREMENT
% This is the ISO_IEC TR14652 Locale definition for the LC_MEASUREMENT
% category generated by IBM Basic CountryPack Transformer.
measurement 1
END LC_MEASUREMENT
%

2
sysdeps/unix/sysv/linux/configure.in
View File

@ -80,7 +80,7 @@ case "$machine" in
arch_minimum_kernel=2.0.10
;;
powerpc/powerpc64)
arch_minimum_kernel=2.4.21
arch_minimum_kernel=2.4.19
;;
s390/s390-32)
libc_cv_gcc_unwind_find_fde=yes

13
sysdeps/unix/sysv/linux/kernel-features.h
View File

@ -210,6 +210,19 @@
# define __ASSUME_MMAP2_SYSCALL 1
#endif
/* Starting with 2.4.21 PowerPC64 implements the new prctl syscall.
This allows applications to get/set the Floating Point Exception Mode. */
#if __LINUX_KERNEL_VERSION >= (132096+21) && defined __powerpc64__
# define __ASSUME_NEW_PRCTL_SYSCALL 1
#endif
/* Starting with 2.4.21 PowerPC64 implements the new rt_sigreturn syscall.
The new rt_sigreturn takes an ucontext pointer allowing rt_sigreturn
to be used in the set/swapcontext implementation. */
#if __LINUX_KERNEL_VERSION >= (132096+21) && defined __powerpc64__
# define __ASSUME_NEW_RT_SIGRETURN_SYSCALL 1
#endif
/* On x86, the set_thread_area syscall was introduced in 2.5.29, but its
semantics was changed in 2.5.30, and again after 2.5.31. */
#if __LINUX_KERNEL_VERSION >= 132384 && defined __i386__

5
sysdeps/unix/sysv/linux/powerpc/powerpc64/fe_nomask.c
View File

@ -26,8 +26,11 @@
const fenv_t *
__fe_nomask_env (void)
{
#ifdef __ASSUME_NEW_PRCTL_SYSCALL
INTERNAL_SYSCALL_DECL (err);
INTERNAL_SYSCALL (prctl, err, 2, PR_SET_FPEXC, PR_FP_EXC_PRECISE);
#else
__set_errno (ENOSYS);
#endif
return FE_ENABLED_ENV;
}

14
sysdeps/unix/sysv/linux/powerpc/powerpc64/getcontext.S
View File

@ -21,9 +21,11 @@
#define __ASSEMBLY__
#include <asm/ptrace.h>
#include <asm/errno.h>
#include "ucontext_i.h"
ENTRY(__getcontext)
#ifdef __ASSUME_NEW_RT_SIGRETURN_SYSCALL
std r0,(SIGCONTEXT_GP_REGS+(PT_R0*8))(r3)
std r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r3)
mflr r0
@ -126,8 +128,18 @@ ENTRY(__getcontext)
addi r5,r3,UCONTEXT_SIGMASK
li r4,0
li r3,SIG_BLOCK
bl .sigprocmask
bl JUMPTARGET(sigprocmask)
nop
#else
/* If the kernel is not at least 2.4.21 then generate a ENOSYS stub. */
mflr r0
std r0,FRAME_LR_SAVE(r1)
stdu r1,-128(r1)
li r3,ENOSYS
bl JUMPTARGET(__syscall_error)
nop
li r3,-1
#endif
ld r0,128+FRAME_LR_SAVE(r1)
addi r1,r1,128

16
sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S
View File

@ -22,8 +22,10 @@
#define __ASSEMBLY__
#include <asm/ptrace.h>
#include "ucontext_i.h"
#include <asm/errno.h>
ENTRY(__makecontext)
#ifdef __ASSUME_NEW_RT_SIGRETURN_SYSCALL
/* Save parameters into the parameter save area of callers frame. */
std r3,FRAME_PARM1_SAVE(r1) /* ucontext_t *ucp */
std r4,FRAME_PARM2_SAVE(r1) /* void (*func)(void) */
@ -156,6 +158,20 @@ L(gotexitcodeaddr):
addi r1,r1,128
mtlr r0
blr
#else
/* If the kernel is not at least 2.4.21 then generate a ENOSYS stub. */
mflr r0
std r0,FRAME_LR_SAVE(r1)
stdu r1,-128(r1)
li r3,ENOSYS
bl JUMPTARGET(__syscall_error)
nop
li r3,-1
ld r0,128+FRAME_LR_SAVE(r1)
addi r1,r1,128
mtlr r0
blr
#endif
END(__makecontext)
weak_alias(__makecontext, makecontext)

18
sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S
View File

@ -22,8 +22,10 @@
#define __ASSEMBLY__
#include <asm/ptrace.h>
#include "ucontext_i.h"
#include <asm/errno.h>
ENTRY(__setcontext)
#ifdef __ASSUME_NEW_RT_SIGRETURN_SYSCALL
mflr r0
std r31,-8(1)
std r0,FRAME_LR_SAVE(r1)
@ -47,7 +49,7 @@ ENTRY(__setcontext)
li r5,0
addi r4,r3,UCONTEXT_SIGMASK
li r3,SIG_SETMASK
bl .sigprocmask
bl JUMPTARGET(sigprocmask)
nop
cmpdi r3,0
bne L(error_exit)
@ -156,6 +158,20 @@ L(do_sigret):
li r0,SYS_ify(rt_sigreturn)
sc
/* No return. */
#else
/* If the kernel is not at least 2.4.21 then generate a ENOSYS stub. */
mflr r0
std r0,FRAME_LR_SAVE(r1)
stdu r1,-128(r1)
li r3,ENOSYS
bl JUMPTARGET(__syscall_error)
nop
li r3,-1
ld r0,128+FRAME_LR_SAVE(r1)
addi r1,r1,128
mtlr r0
blr
#endif
PSEUDO_END(__setcontext)

18
sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S
View File

@ -22,8 +22,10 @@
#define __ASSEMBLY__
#include <asm/ptrace.h>
#include "ucontext_i.h"
#include <asm/errno.h>
ENTRY(__swapcontext)
#ifdef __ASSUME_NEW_RT_SIGRETURN_SYSCALL
std r0,(SIGCONTEXT_GP_REGS+(PT_R0*8))(r3)
std r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r3)
mflr r0
@ -128,7 +130,7 @@ ENTRY(__swapcontext)
addi r5,r3,UCONTEXT_SIGMASK
addi r4,r4,UCONTEXT_SIGMASK
li r3,SIG_SETMASK
bl .sigprocmask
bl JUMPTARGET(sigprocmask)
nop
cmpdi r3,0
bne L(error_exit)
@ -251,6 +253,20 @@ L(do_sigret):
li r0,SYS_ify(rt_sigreturn)
sc
/* No return. */
#else
/* If the kernel is not at least 2.4.21 then generate a ENOSYS stub. */
mflr r0
std r0,FRAME_LR_SAVE(r1)
stdu r1,-128(r1)
li r3,ENOSYS
bl JUMPTARGET(__syscall_error)
nop
li r3,-1
ld r0,128+FRAME_LR_SAVE(r1)
addi r1,r1,128
mtlr r0
blr
#endif
PSEUDO_END(__swapcontext)

8
time/tzfile.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1991-1993, 1995-2000, 2001 Free Software Foundation, Inc.
/* Copyright (C) 1991-1993, 1995-2001, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -463,7 +463,7 @@ find_transition (time_t timer)
return &types[i];
}
int
void
__tzfile_compute (time_t timer, int use_localtime,
long int *leap_correct, int *leap_hit,
struct tm *tp)
@ -513,7 +513,7 @@ __tzfile_compute (time_t timer, int use_localtime,
i = num_leaps;
do
if (i-- == 0)
return 1;
return;
while (timer < leaps[i].transition);
/* Apply its correction. */
@ -532,8 +532,6 @@ __tzfile_compute (time_t timer, int use_localtime,
--i;
}
}
return 1;
}
static void

9
time/tzset.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1991-1999, 2000, 2001, 2002 Free Software Foundation, Inc.
/* Copyright (C) 1991-2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -567,11 +567,8 @@ __tz_convert (const time_t *timer, int use_localtime, struct tm *tp)
tzset_internal (tp == &_tmbuf);
if (__use_tzfile)
{
if (! __tzfile_compute (*timer, use_localtime,
&leap_correction, &leap_extra_secs, tp))
tp = NULL;
}
__tzfile_compute (*timer, use_localtime, &leap_correction,
&leap_extra_secs, tp);
else
{
if (! __offtime (timer, 0, tp))

35
wcsmbs/wcscpy.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
/* Copyright (C) 1995, 1996, 1997, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
@ -17,10 +17,8 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <wchar.h>
#define __need_ptrdiff_t
#include <stddef.h>
#include <wchar.h>
/* Copy SRC to DEST. */
@ -29,16 +27,33 @@ wcscpy (dest, src)
wchar_t *dest;
const wchar_t *src;
{
wchar_t *wcp = (wchar_t *) src;
wint_t c;
const ptrdiff_t off = dest - src - 1;
wchar_t *wcp;
do
if (__alignof__ (wchar_t) >= sizeof (wchar_t))
{
c = *wcp++;
wcp[off] = c;
const ptrdiff_t off = dest - src - 1;
wcp = (wchar_t *) src;
do
{
c = *wcp++;
wcp[off] = c;
}
while (c != L'\0');
}
else
{
wcp = dest;
do
{
c = *src++;
*wcp++ = c;
}
while (c != L'\0');
}
while (c != L'\0');
return dest;
}