https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106233
Bug ID: 106233
Summary: Designated initializers targeting inherited fields
breaks reshape_init_class, at cp/decl.c:6456
Product: gcc
Version: 11.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: drahflow at gmx dot de
Target Milestone: ---
In a vain attempt to use designated initializers to target inherited fields, I
discovered that running
g++ -W -Wall --std=c++20
... on ...
struct Base {
int i;
};
struct Derived: public Base {
using Base::i;
};
int main(void) {
Derived d{
.i = 0,
};
return d.i;
}
... results in ...
designated-usage.c++: In function ‘int main()’:
designated-usage.c++:12:3: internal compiler error: in reshape_init_class, at
cp/decl.c:6456
12 | };
| ^
0x7f080f8137fc __libc_start_main
../csu/libc-start.c:332
Please submit a full bug report, [...]
... for ...
g++ --version
g++ (Debian 11.2.0-18) 11.2.0
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
GCC 12.1 gives
<source>: In function 'int main()':
<source>:12:3: error: 'Base::i' is not a direct member of 'Derived'
12 | };
| ^
Compiler returned: 1
... the correctness of which I don't feel qualified to judge.
