michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: #if !defined(XP_UNIX) && !defined(XP_OS2)
michael@0: 
michael@0: int ffs( unsigned int i)
michael@0: {
michael@0:     int rv	= 1;
michael@0: 
michael@0:     if (!i) return 0;
michael@0: 
michael@0:     while (!(i & 1)) {
michael@0:     	i >>= 1;
michael@0: 	++rv;
michael@0:     }
michael@0: 
michael@0:     return rv;
michael@0: }
michael@0: #endif