decimal128Local.h (1876B)
1/* Local definitions for use with the decNumber C Library. 2 Copyright (C) 2007 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify it under 7 the terms of the GNU General Public License as published by the Free 8 Software Foundation; either version 2, or (at your option) any later 9 version. 10 11 In addition to the permissions in the GNU General Public License, 12 the Free Software Foundation gives you unlimited permission to link 13 the compiled version of this file into combinations with other 14 programs, and to distribute those combinations without any 15 restriction coming from the use of this file. (The General Public 16 License restrictions do apply in other respects; for example, they 17 cover modification of the file, and distribution when not linked 18 into a combine executable.) 19 20 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 21 WARRANTY; without even the implied warranty of MERCHANTABILITY or 22 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 23 for more details. 24 25 You should have received a copy of the GNU General Public License 26 along with GCC; see the file COPYING. If not, write to the Free 27 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 28 02110-1301, USA. */ 29 30#if !defined(DECIMAL128LOCAL) 31 32/* The compiler needs sign manipulation functions for decimal128 which 33 are not part of the decNumber package. */ 34 35/* Set sign; this assumes the sign was previously zero. */ 36#define decimal128SetSign(d,b) \ 37 { (d)->bytes[WORDS_BIGENDIAN ? 0 : 15] |= ((unsigned) (b) << 7); } 38 39/* Clear sign. */ 40#define decimal128ClearSign(d) \ 41 { (d)->bytes[WORDS_BIGENDIAN ? 0 : 15] &= ~0x80; } 42 43/* Flip sign. */ 44#define decimal128FlipSign(d) \ 45 { (d)->bytes[WORDS_BIGENDIAN ? 0 : 15] ^= 0x80; } 46 47#endif