https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
Nadav Har'El changed:
What|Removed |Added
CC||nyh at math dot technion.ac.il
---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
--- Comment #26 from Martin Liška ---
> I see the pattern in libyui-3.12.2 package.
and the second affected package is inkscape:
https://gitlab.com/inkscape/inkscape/-/issues/2206
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
--- Comment #25 from Martin Liška ---
(In reply to Martin Sebor from comment #24)
> I see. Yes, if the types are unrelated, that would be a likely bug. I
> think could and should be diagnosed by the C++ front end, by some more
> targeted
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
--- Comment #24 from Martin Sebor ---
I see. Yes, if the types are unrelated, that would be a likely bug. I think
could and should be diagnosed by the C++ front end, by some more targeted
warning than -Wnonnull (as requested in pr38557).
But
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
--- Comment #23 from Martin Liška ---
(In reply to Martin Sebor from comment #20)
> Martin, does the code in the packages follow the pattern below?
>
> $ cat t.C && gcc -O2 -S -Wall t.C
> struct A { virtual ~A (); };
> struct B { virtual ~B ();
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
--- Comment #22 from Martin Liška ---
(In reply to Martin Sebor from comment #21)
> Also, how many warnings for this type of code (or other) do you see? If
> there are too many it might be worth revisiting the decision.
I see it only in 4
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
--- Comment #21 from Martin Sebor ---
Also, how many warnings for this type of code (or other) do you see? If there
are too many it might be worth revisiting the decision.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
--- Comment #20 from Martin Sebor ---
Martin, does the code in the packages follow the pattern below?
$ cat t.C && gcc -O2 -S -Wall t.C
struct A { virtual ~A (); };
struct B { virtual ~B (); void f (); };
void f (A *p)
{
if (dynamic_cast(p))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
--- Comment #19 from Martin Liška ---
(In reply to Martin Sebor from comment #17)
> Warnings for the static cast suppressed in r11-2457.
>
> The warning for the dynamic cast is still issued and I would suggest to use
> a cast to a reference
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
--- Comment #18 from Martin Sebor ---
(In reply to Sergei Trofimovich from comment #8)
> Also, the "'this' pointer null" error wording is not very clear. Should it
> be "'this' pointer is null"? Or "'this' pointer may be null"?
I agree that the
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
Martin Sebor changed:
What|Removed |Added
Resolution|--- |FIXED
Status|ASSIGNED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
--- Comment #16 from CVS Commits ---
The master branch has been updated by Martin Sebor :
https://gcc.gnu.org/g:df5cf47a978aaeb53fc2b18ff0b22eb4531a27d8
commit r11-2457-gdf5cf47a978aaeb53fc2b18ff0b22eb4531a27d8
Author: Martin Sebor
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
--- Comment #15 from Martin Sebor ---
The patch I posted two weeks ago is only now being reviewed.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
--- Comment #14 from Martin Liška ---
@Martin: Any progress on this bug?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
--- Comment #13 from Stephan Bergmann ---
FTR, with that second patch building recent LibreOffice succeeds without false
positives.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
--- Comment #12 from Martin Sebor ---
Thanks for the test case. In it, the no-warning bit set on the conditional
expression to avoid the warning is cleared before the expression reaches the
warning code. The culprit seems to be the
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
--- Comment #11 from Stephan Bergmann ---
(In reply to Martin Sebor from comment #10)
> Patch for the static cast:
> https://gcc.gnu.org/pipermail/gcc-patches/2020-July/550231.html
LibreOffice runs into the same issue, but while the above patch
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96003
Martin Sebor changed:
What|Removed |Added
Summary|[11 Regression] Maybe a |[11 Regression] spurious
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