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Add wmemcmp(3).

This commit is contained in:
Jonas 'Sortie' Termansen 2013-09-16 00:01:19 +02:00
parent efc0eb2829
commit adb3bf543f
3 changed files with 39 additions and 1 deletions
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1
libc/Makefile
View File

@ -195,6 +195,7 @@ wchar/wcstoll.o \
wchar/wcstol.o \
wchar/wcstoull.o \
wchar/wcstoul.o \
wchar/wmemcmp.o \
wctype/wctype.o \
HOSTEDOBJS=\

2
libc/include/wchar.h
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@ -83,6 +83,7 @@ long long wcstoll(const wchar_t* __restrict, wchar_t** __restrict, int);
long wcstol(const wchar_t* __restrict, wchar_t** __restrict, int);
unsigned long long wcstoull(const wchar_t* __restrict, wchar_t** __restrict, int);
unsigned long wcstoul(const wchar_t* __restrict, wchar_t** __restrict, int);
int wmemcmp(const wchar_t*, const wchar_t*, size_t);
/* TODO: These are not implemented in sortix libc yet. */
#if defined(__SORTIX_SHOW_UNIMPLEMENTED)
@ -106,7 +107,6 @@ int wcsncmp(const wchar_t*, const wchar_t*, size_t);
int wcswidth(const wchar_t*, size_t);
int wctob(wint_t);
int wcwidth(wchar_t);
int wmemcmp(const wchar_t*, const wchar_t*, size_t);
int wprintf(const wchar_t* __restrict, ...);
int wscanf(const wchar_t* __restrict, ...);
long double wcstold(const wchar_t* __restrict, wchar_t** __restrict);

37
libc/wchar/wmemcmp.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/wmemcmp.cpp
Compares two arrays of wide characters.
*******************************************************************************/
#include <wchar.h>
extern "C" int wmemcmp(const wchar_t* a, const wchar_t* b, size_t n)
{
for ( size_t i = 0; i < n; i++ )
{
if ( a[i] < b[i] )
return -1;
if ( b[i] < a[i] )
return 1;
}
return 0;
}