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Add wmemmove(3).

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Jonas 'Sortie' Termansen 2013-09-16 15:37:27 +02:00
parent 329881f38d
commit 9039553c15
3 changed files with 39 additions and 1 deletions
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1
libc/Makefile
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@ -202,6 +202,7 @@ wchar/wcsxfrm.o \
wchar/wmemchr.o \
wchar/wmemcmp.o \
wchar/wmemcpy.o \
wchar/wmemmove.o \
wctype/wctype.o \
HOSTEDOBJS=\

2
libc/include/wchar.h
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@ -90,6 +90,7 @@ size_t wcsxfrm(wchar_t* __restrict, const wchar_t* __restrict, size_t);
wchar_t* wmemchr(const wchar_t*, wchar_t, size_t);
int wmemcmp(const wchar_t*, const wchar_t*, size_t);
wchar_t* wmemcpy(wchar_t* __restrict, const wchar_t* __restrict, size_t);
wchar_t* wmemmove(wchar_t*, const wchar_t*, size_t);
/* TODO: These are not implemented in sortix libc yet. */
#if defined(__SORTIX_SHOW_UNIMPLEMENTED)
@ -117,7 +118,6 @@ int wscanf(const wchar_t* __restrict, ...);
long double wcstold(const wchar_t* __restrict, wchar_t** __restrict);
size_t wcsftime(wchar_t* __restrict, size_t, const wchar_t* __restrict, const struct tm* __restrict);
wchar_t* fgetws(wchar_t* __restrict, int, FILE* __restrict);
wchar_t* wmemmove(wchar_t*, const wchar_t*, size_t);
wchar_t* wmemset(wchar_t*, wchar_t, size_t);
wint_t btowc(int);
wint_t fgetwc(FILE*);

37
libc/wchar/wmemmove.cpp Normal file
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@ -0,0 +1,37 @@
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2013.
This file is part of the Sortix C Library.
The Sortix 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 3 of the License, or (at your
option) any later version.
The Sortix 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 Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
wchar/wmemmove.cpp
Copy wide memory between potentially overlapping regions.
*******************************************************************************/
#include <stdint.h>
#include <wchar.h>
extern "C" wchar_t* wmemmove(wchar_t* dst, const wchar_t* src, size_t n)
{
if ( (uintptr_t) dst < (uintptr_t) src )
for ( size_t i = 0; i < n; i++ )
dst[i] = src[i];
else
for ( size_t i = 0; i < n; i++ )
dst[n-i] = src[n-i];
return dst;
}