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Add wcscmp(3).

This commit is contained in:
Jonas 'Sortie' Termansen 2013-03-24 00:41:35 +01:00
parent ff33adeb7f
commit c4da23f1f5
3 changed files with 41 additions and 1 deletions
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1
libc/Makefile
View File

@ -133,6 +133,7 @@ wcrtomb.o \
wcscat.o \
wcschrnul.o \
wcschr.o \
wcscmp.o \
wcscpy.o \
wcslen.o \
wctomb.o \

2
libc/include/wchar.h
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@ -66,6 +66,7 @@ size_t mbrtowc(wchar_t* restrict, const char* restrict, size_t, mbstate_t* restr
wchar_t* wcscat(wchar_t* restrict, const wchar_t* restrict);
wchar_t* wcschr(const wchar_t*, wchar_t);
wchar_t* wcschrnul(const wchar_t*, wchar_t);
int wcscmp(const wchar_t*, const wchar_t*);
wchar_t* wcscpy(wchar_t* restrict, const wchar_t* restrict);
size_t wcslen(const wchar_t*);
@ -87,7 +88,6 @@ int vswprintf(wchar_t* restrict, size_t, const wchar_t* restrict, va_list);
int vswscanf(const wchar_t* restrict, const wchar_t* restrict, va_list);
int vwprintf(const wchar_t* restrict, va_list);
int vwscanf(const wchar_t* restrict, va_list);
int wcscmp(const wchar_t*, const wchar_t*);
int wcscoll(const wchar_t*, const wchar_t*);
int wcsncmp(const wchar_t*, const wchar_t*, size_t);
int wcswidth(const wchar_t*, size_t);

39
libc/wcscmp.cpp Normal file
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@ -0,0 +1,39 @@
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 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/>.
wcscmp.cpp
Compares two strings.
*******************************************************************************/
#include <wchar.h>
extern "C" int wcscmp(const wchar_t* a, const wchar_t* b)
{
while ( true )
{
wchar_t ac = *a++, bc = *b++;
if ( ac == L'\0' && bc == L'\0' )
return 0;
if ( ac < bc )
return -1;
if ( ac > bc )
return 1;
}
}