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Add wcslcat(3) and wcslcpy(3).

This commit is contained in:
Jonas 'Sortie' Termansen 2014-05-28 22:17:13 +02:00
parent 429f823f1f
commit ac7124e1e6
4 changed files with 75 additions and 0 deletions
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2
libc/Makefile
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@ -255,6 +255,8 @@ wchar/wcscpy.o \
wchar/wcscspn.o \
wchar/wcsdup.o \
wchar/wcsftime.o \
wchar/wcslcat.o \
wchar/wcslcpy.o \
wchar/wcslen.o \
wchar/wcsncasecmp.o \
wchar/wcsncat.o \

2
libc/include/wchar.h
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@ -222,6 +222,8 @@ size_t wcsnrtombs(char* __restrict, const wchar_t** __restrict, size_t, size_t,
/* TODO: fputws_unlocked */
wchar_t* wcschrnul(const wchar_t*, wchar_t);
/* TODO: wcsftime_l */
size_t wcslcat(wchar_t* __restrict, const wchar_t* __restrict, size_t);
size_t wcslcpy(wchar_t* __restrict, const wchar_t* __restrict, size_t);
/* TODO: wchar_t* wmempcpy(wchar_t* __restrict, const wchar_t* __restrict, size_t); */
/* TODO: wcstod_l? */
/* TODO: wcstof_l? */

34
libc/wchar/wcslcat.cpp Normal file
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@ -0,0 +1,34 @@
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2014.
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/wcslcat.cpp
Appends a string onto another string truncating if the string is too small.
*******************************************************************************/
#include <wchar.h>
extern "C"
size_t wcslcat(wchar_t* restrict dest, const wchar_t* restrict src, size_t size)
{
size_t dest_len = wcsnlen(dest, size);
if ( size <= dest_len )
return dest_len + wcslen(src);
return dest_len + wcslcpy(dest + dest_len, src, size - dest_len);
}

37
libc/wchar/wcslcpy.cpp Normal file
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@ -0,0 +1,37 @@
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2014.
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/wcslcpy.cpp
Copies a string and truncates it if the destination is too small.
*******************************************************************************/
#include <wchar.h>
extern "C"
size_t wcslcpy(wchar_t* restrict dest, const wchar_t* restrict src, size_t size)
{
if ( !size )
return wcslen(src);
size_t result;
for ( result = 0; result < size-1 && src[result]; result++ )
dest[result] = src[result];
dest[result] = L'\0';
return result + wcslen(src + result);
}