/* Total order operation on absolute values. dbl-64 version. Copyright (C) 2016-2017 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see . */ #include #include #include #include int totalordermag (double x, double y) { uint32_t hx, hy; uint32_t lx, ly; EXTRACT_WORDS (hx, lx, x); EXTRACT_WORDS (hy, ly, y); hx &= 0x7fffffff; hy &= 0x7fffffff; #if HIGH_ORDER_BIT_IS_SET_FOR_SNAN /* For the preferred quiet NaN convention, this operation is a comparison of the representations of the absolute values of the arguments. If both arguments are NaNs, invert the quiet/signaling bit so comparing that way works. */ if ((hx > 0x7ff00000 || (hx == 0x7ff00000 && lx != 0)) && (hy > 0x7ff00000 || (hy == 0x7ff00000 && ly != 0))) { hx ^= 0x00080000; hy ^= 0x00080000; } #endif return hx < hy || (hx == hy && lx <= ly); } #ifdef NO_LONG_DOUBLE weak_alias (totalordermag, totalordermagl) #endif