1/* Decimal floating point support functions for GNU compiler. 2 Copyright (C) 2005-2015 Free Software Foundation, Inc. 3 4This file is part of GCC. 5 6GCC is free software; you can redistribute it and/or modify it under 7the terms of the GNU General Public License as published by the Free 8Software Foundation; either version 3, or (at your option) any later 9version. 10 11GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12WARRANTY; without even the implied warranty of MERCHANTABILITY or 13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14for more details. 15 16You should have received a copy of the GNU General Public License 17along with GCC; see the file COPYING3. If not see 18<http://www.gnu.org/licenses/>. */ 19 20#ifndef GCC_DFP_H 21#define GCC_DFP_H 22 23/* Encode REAL_VALUE_TYPEs into 32/64/128-bit IEEE 754 encoded values. */ 24void encode_decimal32 (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *); 25void encode_decimal64 (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *); 26void decode_decimal128 (const struct real_format *, REAL_VALUE_TYPE *, const long *); 27 28/* Decode 32/64/128-bit IEEE 754 encoded values into REAL_VALUE_TYPEs. */ 29void decode_decimal32 (const struct real_format *, REAL_VALUE_TYPE *, const long *); 30void decode_decimal64 (const struct real_format *, REAL_VALUE_TYPE *, const long *); 31void encode_decimal128 (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *); 32 33/* Arithmetic and conversion functions. */ 34int decimal_do_compare (const REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *, int); 35void decimal_real_from_string (REAL_VALUE_TYPE *, const char *); 36void decimal_round_for_format (const struct real_format *, REAL_VALUE_TYPE *); 37void decimal_real_convert (REAL_VALUE_TYPE *, machine_mode, const REAL_VALUE_TYPE *); 38void decimal_real_to_decimal (char *, const REAL_VALUE_TYPE *, size_t, size_t, int); 39void decimal_do_fix_trunc (REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *); 40void decimal_real_maxval (REAL_VALUE_TYPE *, int, machine_mode); 41wide_int decimal_real_to_integer (const REAL_VALUE_TYPE *, bool *, int); 42HOST_WIDE_INT decimal_real_to_integer (const REAL_VALUE_TYPE *); 43 44#ifdef TREE_CODE 45bool decimal_real_arithmetic (REAL_VALUE_TYPE *, enum tree_code, const REAL_VALUE_TYPE *, 46 const REAL_VALUE_TYPE *); 47#endif 48 49#endif /* GCC_DFP_H */ 50