/* Total order operation on absolute values. dbl-64/wordsize-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) { uint64_t ix, iy; EXTRACT_WORDS64 (ix, x); EXTRACT_WORDS64 (iy, y); ix &= 0x7fffffffffffffffULL; iy &= 0x7fffffffffffffffULL; #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 (ix > 0x7ff0000000000000ULL && iy > 0x7ff0000000000000ULL) { ix ^= 0x0008000000000000ULL; iy ^= 0x0008000000000000ULL; } #endif return ix <= iy; } #ifdef NO_LONG_DOUBLE weak_alias (totalordermag, totalordermagl) #endif