/* Floating point definitions for GDB.
- Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
- 1997, 1998, 1999, 2000, 2001
+
+ Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
+ 1997, 1998, 1999, 2000, 2001, 2003, 2005, 2006, 2007, 2008, 2009, 2010
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 2 of the License, or
+ 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,
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, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef DOUBLEST_H
#define DOUBLEST_H
+struct type;
+struct floatformat;
+
/* Setup definitions for host and target floating point formats. We need to
consider the format for `float', `double', and `long double' for both target
and host. We need to do this so that we know what kind of conversions need
#include "floatformat.h" /* For struct floatformat */
-extern const struct floatformat floatformat_unknown;
-
/* Use `long double' if the host compiler supports it. (Note that this is not
necessarily any longer than `double'. On SunOS/gcc, it's the same as
double.) This is necessary because GDB internally converts all floating
host's `long double'. In general, we'll probably reduce the precision of
any such values and print a warning. */
-#ifdef HAVE_LONG_DOUBLE
+#if (defined HAVE_LONG_DOUBLE && defined PRINTF_HAS_LONG_DOUBLE \
+ && defined SCANF_HAS_LONG_DOUBLE)
typedef long double DOUBLEST;
+# define DOUBLEST_PRINT_FORMAT "Lg"
+# define DOUBLEST_SCAN_FORMAT "Lg"
#else
typedef double DOUBLEST;
+# define DOUBLEST_PRINT_FORMAT "g"
+# define DOUBLEST_SCAN_FORMAT "lg"
+/* If we can't scan or print long double, we don't want to use it
+ anywhere. */
+# undef HAVE_LONG_DOUBLE
+# undef PRINTF_HAS_LONG_DOUBLE
+# undef SCANF_HAS_LONG_DOUBLE
#endif
+/* Different kinds of floatformat numbers recognized by
+ floatformat_classify. To avoid portability issues, we use local
+ values instead of the C99 macros (FP_NAN et cetera). */
+enum float_kind {
+ float_nan,
+ float_infinite,
+ float_zero,
+ float_normal,
+ float_subnormal
+};
+
extern void floatformat_to_doublest (const struct floatformat *,
const void *in, DOUBLEST *out);
extern void floatformat_from_doublest (const struct floatformat *,
const DOUBLEST *in, void *out);
-extern int floatformat_is_negative (const struct floatformat *, char *);
-extern int floatformat_is_nan (const struct floatformat *, char *);
-extern char *floatformat_mantissa (const struct floatformat *, char *);
+extern int floatformat_is_negative (const struct floatformat *,
+ const bfd_byte *);
+extern enum float_kind floatformat_classify (const struct floatformat *,
+ const bfd_byte *);
+extern const char *floatformat_mantissa (const struct floatformat *,
+ const bfd_byte *);
-/* These two functions are deprecated in favour of
- extract_typed_floating and store_typed_floating. See comments in
- 'doublest.c' for details. */
+/* Given TYPE, return its floatformat. TYPE_FLOATFORMAT() may return
+ NULL. type_floatformat() detects that and returns a floatformat
+ based on the type size when FLOATFORMAT is NULL. */
-extern DOUBLEST extract_floating (const void *addr, int len);
-extern void store_floating (void *addr, int len, DOUBLEST val);
+const struct floatformat *floatformat_from_type (const struct type *type);
extern DOUBLEST extract_typed_floating (const void *addr,
const struct type *type);
extern void store_typed_floating (void *addr, const struct type *type,
DOUBLEST val);
+extern void convert_typed_floating (const void *from,
+ const struct type *from_type,
+ void *to, const struct type *to_type);
#endif