1 /* Decimal floating point support functions for GNU compiler. 2 Copyright (C) 2005-2018 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 3, or (at your option) any later 9 version. 10 11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12 WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 for more details. 15 16 You should have received a copy of the GNU General Public License 17 along 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. */ 24 void encode_decimal32 (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *); 25 void encode_decimal64 (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *); 26 void 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. */ 29 void decode_decimal32 (const struct real_format *, REAL_VALUE_TYPE *, const long *); 30 void decode_decimal64 (const struct real_format *, REAL_VALUE_TYPE *, const long *); 31 void encode_decimal128 (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *); 32 33 /* Arithmetic and conversion functions. */ 34 int decimal_do_compare (const REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *, int); 35 void decimal_real_from_string (REAL_VALUE_TYPE *, const char *); 36 void decimal_round_for_format (const struct real_format *, REAL_VALUE_TYPE *); 37 void decimal_real_convert (REAL_VALUE_TYPE *, const real_format *, 38 const REAL_VALUE_TYPE *); 39 void decimal_real_to_decimal (char *, const REAL_VALUE_TYPE *, size_t, size_t, int); 40 void decimal_do_fix_trunc (REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *); 41 void decimal_real_maxval (REAL_VALUE_TYPE *, int, machine_mode); 42 wide_int decimal_real_to_integer (const REAL_VALUE_TYPE *, bool *, int); 43 HOST_WIDE_INT decimal_real_to_integer (const REAL_VALUE_TYPE *); 44 45 #ifdef TREE_CODE 46 bool decimal_real_arithmetic (REAL_VALUE_TYPE *, enum tree_code, const REAL_VALUE_TYPE *, 47 const REAL_VALUE_TYPE *); 48 #endif 49 50 #endif /* GCC_DFP_H */ 51