From 5f2fcb2e327ac7ebfe002eb25396663674866e97 Mon Sep 17 00:00:00 2001 From: Tim Mayberry Date: Wed, 17 Jul 2013 19:29:34 +1000 Subject: Add PBD::ffs function --- libs/pbd/ffs.cc | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 libs/pbd/ffs.cc (limited to 'libs/pbd/ffs.cc') diff --git a/libs/pbd/ffs.cc b/libs/pbd/ffs.cc new file mode 100644 index 0000000000..8f7ecdb502 --- /dev/null +++ b/libs/pbd/ffs.cc @@ -0,0 +1,35 @@ +/* + Copyright (C) 2013 Tim Mayberry + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +#include "pbd/ffs.h" + +#include + +namespace PBD { +int +ffs (int x) +{ +#if defined(WIN32) && defined(__GNUC__) + return __builtin_ffs(x); +#else + return ffs(x); +#endif +} + +} -- cgit v1.2.3