50 lines
2.3 KiB
C
50 lines
2.3 KiB
C
/* Decimal floating point support functions for GNU compiler.
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Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_DFP_H
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#define GCC_DFP_H
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/* Encode REAL_VALUE_TYPEs into 32/64/128-bit IEEE 754 encoded values. */
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void encode_decimal32 (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *);
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void encode_decimal64 (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *);
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void decode_decimal128 (const struct real_format *, REAL_VALUE_TYPE *, const long *);
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/* Decode 32/64/128-bit IEEE 754 encoded values into REAL_VALUE_TYPEs. */
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void decode_decimal32 (const struct real_format *, REAL_VALUE_TYPE *, const long *);
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void decode_decimal64 (const struct real_format *, REAL_VALUE_TYPE *, const long *);
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void encode_decimal128 (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *);
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/* Arithmetic and conversion functions. */
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int decimal_do_compare (const REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *, int);
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void decimal_real_from_string (REAL_VALUE_TYPE *, const char *);
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void decimal_round_for_format (const struct real_format *, REAL_VALUE_TYPE *);
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void decimal_real_convert (REAL_VALUE_TYPE *, enum machine_mode, const REAL_VALUE_TYPE *);
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void decimal_real_to_decimal (char *, const REAL_VALUE_TYPE *, size_t, size_t, int);
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void decimal_do_fix_trunc (REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *);
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void decimal_real_maxval (REAL_VALUE_TYPE *, int, enum machine_mode);
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void decimal_real_to_integer2 (HOST_WIDE_INT *, HOST_WIDE_INT *, const REAL_VALUE_TYPE *);
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HOST_WIDE_INT decimal_real_to_integer (const REAL_VALUE_TYPE *);
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#ifdef TREE_CODE
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bool decimal_real_arithmetic (REAL_VALUE_TYPE *, enum tree_code, const REAL_VALUE_TYPE *,
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const REAL_VALUE_TYPE *);
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#endif
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#endif /* GCC_DFP_H */
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