binutils-gdb/gdb/dfp.h

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/* Decimal floating point support for GDB.
Copyright 2007, 2008 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Decimal floating point is one of the extension to IEEE 754, which is
described in http://grouper.ieee.org/groups/754/revision.html and
http://www2.hursley.ibm.com/decimal/. It completes binary floating
point by representing floating point more exactly. */
#ifndef DFP_H
#define DFP_H
/* When using decimal128, this is the maximum string length + 1
* (value comes from libdecnumber's DECIMAL128_String constant). */
#define MAX_DECIMAL_STRING 43
extern void decimal_to_string (const gdb_byte *, int, char *);
extern int decimal_from_string (gdb_byte *, int, const char *);
* Makefile.in (dfp.o): Depend on expression.h, gdbtypes.h and value.h. (valarith.o): Depend on dfp.h. (valops.o): Likewise. * dfp.c: Include expression.h, gdbtypes.h, value.h and dfp.h. (set_decnumber_context): New function. (decimal_check_errors): Likewise. (decimal_from_number): Likewise. (decimal_to_number): Likewise. (decimal_from_string): Use set_decnumber_context and decimal_check_errors. (decimal_from_integral): New function. (decimal_from_floating): Likewise. (decimal_to_double): Likewise. (promote_decimal): Likewise. (decimal_binop): Likewise. (decimal_is_zero): Likewise. (decimal_compare): Likewise. (decimal_convert): Likewise. * dfp.h (decimal_from_integral): New prototype. (decimal_from_floating): Likewise. (decimal_to_double): Likewise. (decimal_binop): Likewise. (decimal_is_zero): Likewise. (decimal_compare): Likewise. (decimal_convert): Likewise. * eval.c (evaluate_subexp_standard): Remove expect_type argument from call to value_from_decfloat. * valarith.c: Include dfp.h. (value_args_as_decimal): New function. (value_binop): Add if block to handle TYPE_CODE_DECFLOAT values. (value_logical_not): Likewise. (value_equal): Likewise. (value_less): Likewise. (value_pos): Likewise. (value_neg): Formatting fix. * valops.c: Include dfp.h. (value_cast): Add if block to handle TYPE_CODE_DECFLOAT values. * value.c (unpack_long): Add case to handle TYPE_CODE_DECFLOAT. (unpack_double): Add if block to handle TYPE_CODE_DECFLOAT. (value_from_decfloat): Remove expect_type argument. * value.h (value_from_decfloat): Update prototype.
2008-01-07 23:33:57 +01:00
extern void decimal_from_integral (struct value *from, gdb_byte *to, int len);
extern void decimal_from_floating (struct value *from, gdb_byte *to, int len);
extern DOUBLEST decimal_to_doublest (const gdb_byte *from, int len);
* Makefile.in (dfp.o): Depend on expression.h, gdbtypes.h and value.h. (valarith.o): Depend on dfp.h. (valops.o): Likewise. * dfp.c: Include expression.h, gdbtypes.h, value.h and dfp.h. (set_decnumber_context): New function. (decimal_check_errors): Likewise. (decimal_from_number): Likewise. (decimal_to_number): Likewise. (decimal_from_string): Use set_decnumber_context and decimal_check_errors. (decimal_from_integral): New function. (decimal_from_floating): Likewise. (decimal_to_double): Likewise. (promote_decimal): Likewise. (decimal_binop): Likewise. (decimal_is_zero): Likewise. (decimal_compare): Likewise. (decimal_convert): Likewise. * dfp.h (decimal_from_integral): New prototype. (decimal_from_floating): Likewise. (decimal_to_double): Likewise. (decimal_binop): Likewise. (decimal_is_zero): Likewise. (decimal_compare): Likewise. (decimal_convert): Likewise. * eval.c (evaluate_subexp_standard): Remove expect_type argument from call to value_from_decfloat. * valarith.c: Include dfp.h. (value_args_as_decimal): New function. (value_binop): Add if block to handle TYPE_CODE_DECFLOAT values. (value_logical_not): Likewise. (value_equal): Likewise. (value_less): Likewise. (value_pos): Likewise. (value_neg): Formatting fix. * valops.c: Include dfp.h. (value_cast): Add if block to handle TYPE_CODE_DECFLOAT values. * value.c (unpack_long): Add case to handle TYPE_CODE_DECFLOAT. (unpack_double): Add if block to handle TYPE_CODE_DECFLOAT. (value_from_decfloat): Remove expect_type argument. * value.h (value_from_decfloat): Update prototype.
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extern void decimal_binop (enum exp_opcode, const gdb_byte *, int,
const gdb_byte *, int, gdb_byte *, int *);
extern int decimal_is_zero (const gdb_byte *x, int len);
extern int decimal_compare (const gdb_byte *x, int len_x, const gdb_byte *y, int len_y);
extern void decimal_convert (const gdb_byte *from, int len_from, gdb_byte *to,
int len_to);
#endif