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Add wcsrchr(3).

This commit is contained in:
Jonas 'Sortie' Termansen 2013-03-24 00:46:44 +01:00
parent 7734074ba7
commit 1902f2d797
3 changed files with 39 additions and 1 deletions
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1
libc/Makefile
View File

@ -138,6 +138,7 @@ wcscpy.o \
wcslen.o \
wcsncat.o \
wcsncpy.o \
wcsrchr.o \
wctomb.o \
wctype.o \

2
libc/include/wchar.h
View File

@ -71,6 +71,7 @@ wchar_t* wcscpy(wchar_t* restrict, const wchar_t* restrict);
size_t wcslen(const wchar_t*);
wchar_t* wcsncat(wchar_t* restrict, const wchar_t* restrict, size_t);
wchar_t* wcsncpy(wchar_t* restrict, const wchar_t* restrict, size_t);
wchar_t* wcsrchr(const wchar_t*, wchar_t);
/* TODO: These are not implemented in sortix libc yet. */
#if defined(__SORTIX_SHOW_UNIMPLEMENTED)
@ -112,7 +113,6 @@ unsigned long long wcstoull(const wchar_t* restrict, wchar_t** restrict, int);
unsigned long wcstoul(const wchar_t* restrict, wchar_t** restrict, int);
wchar_t* fgetws(wchar_t* restrict, int, FILE* restrict);
wchar_t* wcspbrk(const wchar_t*, const wchar_t*);
wchar_t* wcsrchr(const wchar_t*, wchar_t);
wchar_t* wcsstr(const wchar_t* restrict, const wchar_t* restrict);
wchar_t* wcstok(wchar_t* restrict, const wchar_t* restrict, wchar_t** restrict);
wchar_t* wcswcs(const wchar_t*, const wchar_t*);

37
libc/wcsrchr.cpp Normal file
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@ -0,0 +1,37 @@
/*******************************************************************************
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/>.
wcsrchr.cpp
Searches a string for a specific character.
*******************************************************************************/
#include <wchar.h>
extern "C" wchar_t* wcsrchr(const wchar_t* str, wchar_t c)
{
const wchar_t* last = NULL;
while ( *str )
{
if ( *str == c )
last = str;
str++;
}
return (wchar_t*) last;
}