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merge from gcc

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DJ Delorie
2005-08-17 18:03:42 +00:00
parent e1e3d0f5e6
commit 3b6940c0d1
4 changed files with 47 additions and 22 deletions
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13
libiberty/ChangeLog
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@@ -1,3 +1,16 @@
2005-08-17 Mark Kettenis <kettenis@gnu.org>
* floatformat.c (floatformat_always_valid): Change type of last
argument to `void *'.
(floatformat_i387_ext_is_valid): Likewise.
(floatformat_to_double): Change type of second argument to `const
void *'.
(floatformat_from_double): Change type of last argument to `void
*'.
(floatformat_is_valid): Change type of last argument to `const
void *'.
(ieee_test): Remove redundant casts.
2005-08-17 Kelley Cook <kcook@gcc.gnu.org>
* strverscmp.c: Update FSF address.

34
libiberty/floatformat.c
View File

@@ -1,5 +1,6 @@
/* IEEE floating point support routines, for GDB, the GNU Debugger.
Copyright (C) 1991, 1994, 1999, 2000, 2003 Free Software Foundation, Inc.
Copyright 1991, 1994, 1999, 2000, 2003, 2005
Free Software Foundation, Inc.
This file is part of GDB.
@@ -52,11 +53,11 @@ static unsigned long get_field (const unsigned char *,
unsigned int,
unsigned int);
static int floatformat_always_valid (const struct floatformat *fmt,
const char *from);
const void *from);
static int
floatformat_always_valid (const struct floatformat *fmt ATTRIBUTE_UNUSED,
const char *from ATTRIBUTE_UNUSED)
const void *from ATTRIBUTE_UNUSED)
{
return 1;
}
@@ -107,23 +108,24 @@ const struct floatformat floatformat_ieee_double_littlebyte_bigword =
floatformat_always_valid
};
static int floatformat_i387_ext_is_valid (const struct floatformat *fmt, const char *from);
static int floatformat_i387_ext_is_valid (const struct floatformat *fmt,
const void *from);
static int
floatformat_i387_ext_is_valid (const struct floatformat *fmt, const char *from)
floatformat_i387_ext_is_valid (const struct floatformat *fmt, const void *from)
{
/* In the i387 double-extended format, if the exponent is all ones,
then the integer bit must be set. If the exponent is neither 0
nor ~0, the intbit must also be set. Only if the exponent is
zero can it be zero, and then it must be zero. */
unsigned long exponent, int_bit;
const unsigned char *ufrom = (const unsigned char *) from;
const unsigned char *ufrom = from;
exponent = get_field (ufrom, fmt->byteorder, fmt->totalsize,
fmt->exp_start, fmt->exp_len);
int_bit = get_field (ufrom, fmt->byteorder, fmt->totalsize,
fmt->man_start, 1);
if ((exponent == 0) != (int_bit == 0))
return 0;
else
@@ -267,9 +269,9 @@ get_field (const unsigned char *data, enum floatformat_byteorders order,
void
floatformat_to_double (const struct floatformat *fmt,
const char *from, double *to)
const void *from, double *to)
{
const unsigned char *ufrom = (const unsigned char *)from;
const unsigned char *ufrom = from;
double dto;
long exponent;
unsigned long mant;
@@ -438,14 +440,14 @@ put_field (unsigned char *data, enum floatformat_byteorders order,
void
floatformat_from_double (const struct floatformat *fmt,
const double *from, char *to)
const double *from, void *to)
{
double dfrom;
int exponent;
double mant;
unsigned int mant_bits, mant_off;
int mant_bits_left;
unsigned char *uto = (unsigned char *)to;
unsigned char *uto = to;
dfrom = *from;
memset (uto, 0, fmt->totalsize / FLOATFORMAT_CHAR_BIT);
@@ -533,7 +535,7 @@ floatformat_from_double (const struct floatformat *fmt,
/* Return non-zero iff the data at FROM is a valid number in format FMT. */
int
floatformat_is_valid (const struct floatformat *fmt, const char *from)
floatformat_is_valid (const struct floatformat *fmt, const void *from)
{
return fmt->is_valid (fmt, from);
}
@@ -550,15 +552,13 @@ ieee_test (double n)
{
double result;
floatformat_to_double (&floatformat_ieee_double_little, (char *) &n,
&result);
floatformat_to_double (&floatformat_ieee_double_little, &n, &result);
if ((n != result && (! isnan (n) || ! isnan (result)))
|| (n < 0 && result >= 0)
|| (n >= 0 && result < 0))
printf ("Differ(to): %.20g -> %.20g\n", n, result);
floatformat_from_double (&floatformat_ieee_double_little, &n,
(char *) &result);
floatformat_from_double (&floatformat_ieee_double_little, &n, &result);
if ((n != result && (! isnan (n) || ! isnan (result)))
|| (n < 0 && result >= 0)
|| (n >= 0 && result < 0))