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Properly handle references

This commit is contained in:
Daniel Berlin 2000-07-15 17:40:30 +00:00
parent 63bf565122
commit 802db21b61
2 changed files with 29 additions and 12 deletions
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7
gdb/ChangeLog
View File

@ -1,3 +1,10 @@
2000-07-15 Daniel Berlin <dberlin@redhat.com>
* valops.c (typecmp): Seperate loop into two, add support for
references. This way, we can say a reference to a pointer to a
char is compatible with a pointer to a char. Before, this would
not be true.
2000-07-14 Nicholas Duffek <nsd@redhat.com>
* ppcbug-rom.c (ppcbug_regnames[]): Make array size implicit.

34
gdb/valops.c
View File

@ -274,7 +274,7 @@ value_cast (type, arg2)
case TYPE_CODE_MEMBER:
retvalp = value_from_longest (type, value_as_long (arg2));
/* force evaluation */
ptr = (unsigned int *) VALUE_CONTENTS (retvalp);
ptr = (unsigned int *) VALUE_CONTENTS (retvalp);
*ptr &= ~0x20000000; /* zap 29th bit to remove bias */
return retvalp;
@ -287,10 +287,10 @@ value_cast (type, arg2)
}
}
longest = value_as_long (arg2);
return value_from_longest (type, convert_to_boolean ?
return value_from_longest (type, convert_to_boolean ?
(LONGEST) (longest ? 1 : 0) : longest);
}
else if (code1 == TYPE_CODE_PTR && (code2 == TYPE_CODE_INT ||
else if (code1 == TYPE_CODE_PTR && (code2 == TYPE_CODE_INT ||
code2 == TYPE_CODE_ENUM ||
code2 == TYPE_CODE_RANGE))
{
@ -561,7 +561,7 @@ value_fetch_lazy (val)
}
else if (length)
read_memory (addr, VALUE_CONTENTS_ALL_RAW (val), length);
VALUE_LAZY (val) = 0;
return 0;
}
@ -676,7 +676,7 @@ value_assign (toval, fromval)
if (VALUE_BITSIZE (toval))
{
char buffer[sizeof (LONGEST)];
int len =
int len =
REGISTER_RAW_SIZE (VALUE_REGNO (toval)) - VALUE_OFFSET (toval);
if (len > (int) sizeof (LONGEST))
@ -2029,12 +2029,22 @@ typecmp (staticp, t1, t2)
continue;
}
while (TYPE_CODE (tt1) == TYPE_CODE_PTR
&& (TYPE_CODE (tt2) == TYPE_CODE_ARRAY
|| TYPE_CODE (tt2) == TYPE_CODE_PTR))
/* djb - 20000715 - Until the new type structure is in the
place, and we can attempt things like implicit conversions,
we need to do this so you can take something like a map<const
char *>, and properly access map["hello"], because the
argument to [] will be a reference to a pointer to a char,
and the arrgument will be a pointer to a char. */
while ( TYPE_CODE(tt1) == TYPE_CODE_REF ||
TYPE_CODE (tt1) == TYPE_CODE_PTR)
{
tt1 = check_typedef (TYPE_TARGET_TYPE (tt1));
tt2 = check_typedef (TYPE_TARGET_TYPE (tt2));
tt1 = check_typedef( TYPE_TARGET_TYPE(tt1) );
}
while ( TYPE_CODE(tt2) == TYPE_CODE_ARRAY ||
TYPE_CODE(tt2) == TYPE_CODE_PTR ||
TYPE_CODE(tt2) == TYPE_CODE_REF)
{
tt2 = check_typedef( TYPE_TARGET_TYPE(tt2) );
}
if (TYPE_CODE (tt1) == TYPE_CODE (tt2))
continue;
@ -3324,7 +3334,7 @@ value_rtti_type (v, full, top, using_enc)
/*
Right now this is G++ RTTI. Plan on this changing in the
future as i get around to setting the vtables properly for G++
compiled stuff. Also, i'll be using the type info functions,
compiled stuff. Also, i'll be using the type info functions,
which are always right. Deal with it until then.
*/
{
@ -3353,7 +3363,7 @@ value_rtti_type (v, full, top, using_enc)
*using_enc=1;
}
/*
We can't use value_ind here, because it would want to use RTTI, and
We can't use value_ind here, because it would want to use RTTI, and
we'd waste a bunch of time figuring out we already know the type.
Besides, we don't care about the type, just the actual pointer
*/