/* * Copyright (c) 2003, 2007-14 Matteo Frigo * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology * * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * */ #include "ifftw.h" #if HAVE_SIMD # define ALGN 16 #else /* disable the alignment machinery, because it will break, e.g., if sizeof(R) == 12 (as in long-double/x86) */ # define ALGN 0 #endif /* NONPORTABLE */ int X(ialignment_of)(R *p) { #if ALGN == 0 UNUSED(p); return 0; #else return (int)(((uintptr_t) p) % ALGN); #endif }