/*
 * lmms_math.h - defines math functions
 *
 * Copyright (c) 2004-2006 Tobias Doerffel <tobydox/at/users.sourceforge.net>
 * 
 * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
 *
 * 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 (see COPYING); if not, write to the
 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301 USA.
 *
 */


#ifndef _LMMS_MATH_H
#define _LMMS_MATH_H




// Equivalent to _x - floorf( _x )
static inline float fraction( const float _x )
{
	return( _x - ( _x >= 0.0f ? static_cast<int>( _x ) :
						static_cast<int>( _x ) - 1 ) );
}




#define FAST_RAND_MAX 32767
static inline int fast_rand( void )
{
	static unsigned long next = 1;
	next = next * 1103515245 + 12345;
	return( (unsigned)( next / 65536 ) % 32768 );
}




#endif