Chris@10: /*
Chris@10:  * Copyright (c) 2003, 2007-11 Matteo Frigo
Chris@10:  * Copyright (c) 2003, 2007-11 Massachusetts Institute of Technology
Chris@10:  *
Chris@10:  * This program is free software; you can redistribute it and/or modify
Chris@10:  * it under the terms of the GNU General Public License as published by
Chris@10:  * the Free Software Foundation; either version 2 of the License, or
Chris@10:  * (at your option) any later version.
Chris@10:  *
Chris@10:  * This program is distributed in the hope that it will be useful,
Chris@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@10:  * GNU General Public License for more details.
Chris@10:  *
Chris@10:  * You should have received a copy of the GNU General Public License
Chris@10:  * along with this program; if not, write to the Free Software
Chris@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
Chris@10:  *
Chris@10:  */
Chris@10: 
Chris@10: 
Chris@10: #include "ifftw.h"
Chris@10: 
Chris@10: #if HAVE_SIMD
Chris@10: #  define ALGN 16
Chris@10: #else
Chris@10:    /* disable the alignment machinery, because it will break,
Chris@10:       e.g., if sizeof(R) == 12 (as in long-double/x86) */
Chris@10: #  define ALGN 0
Chris@10: #endif
Chris@10: 
Chris@10: /* NONPORTABLE */
Chris@10: int X(alignment_of)(R *p)
Chris@10: {
Chris@10: #if ALGN == 0
Chris@10:      UNUSED(p);
Chris@10:      return 0;
Chris@10: #else
Chris@10:      return (int)(((uintptr_t) p) % ALGN);
Chris@10: #endif
Chris@10: }