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Add ffs(3), ffsl(3), and ffsll(3).

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Jonas 'Sortie' Termansen 2013-07-12 14:23:26 +02:00
parent 6ea9a0d509
commit fdbcea19dc
5 changed files with 96 additions and 0 deletions
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3
libc/Makefile
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@ -98,6 +98,9 @@ stdlib/strtof.o \
stdlib/strtold.o \
stdlib/wcstombs.o \
stdlib/wctomb.o \
string/ffsll.o \
string/ffsl.o \
string/ffs.o \
string/memccpy.o \
string/memchr.o \
string/memcmp.o \

3
libc/include/string.h
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@ -34,6 +34,9 @@ __BEGIN_DECLS
@include(size_t.h)
@include(locale_t.h)
int ffs(int);
int ffsl(long int);
int ffsll(long long int);
void* memccpy(void* __restrict, const void* __restrict, int, size_t);
void* memchr(const void*, int, size_t);
int memcmp(const void*, const void*, size_t);

30
libc/string/ffs.cpp Normal file
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@ -0,0 +1,30 @@
/*******************************************************************************
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/>.
string/ffs.cpp
Returns the index of the first set bit.
*******************************************************************************/
#include <string.h>
extern "C" int ffs(int val)
{
return __builtin_ffs(val);
}

30
libc/string/ffsl.cpp Normal file
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@ -0,0 +1,30 @@
/*******************************************************************************
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/>.
string/ffsl.cpp
Returns the index of the first set bit.
*******************************************************************************/
#include <string.h>
extern "C" int ffsl(long int val)
{
return __builtin_ffsl(val);
}

30
libc/string/ffsll.cpp Normal file
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@ -0,0 +1,30 @@
/*******************************************************************************
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/>.
string/ffsll.cpp
Returns the index of the first set bit.
*******************************************************************************/
#include <string.h>
extern "C" int ffsll(long long int val)
{
return __builtin_ffsll(val);
}