https://bugs.llvm.org/show_bug.cgi?id=43762
Bug ID: 43762
Summary: Invalid active union member change
Product: clang
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: C++2a
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected]
The following should not compile:
class A {
public:
int x = 1;
constexpr virtual int f() = 0;
};
class B : public A {
public:
int y = 1;
constexpr virtual int f() override { return 1; }
};
union U {
int n;
B b;
};
constexpr int test() {
U u { .n = 5 };
u.b.x = 10;
return u.b.f();
}
static_assert(test());
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