https://llvm.org/bugs/show_bug.cgi?id=28978
Bug ID: 28978
Summary: Assertion in setImplicitMoveConstructorIsDeleted()
fails
Product: clang
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: e...@efcs.ca
CC: dgre...@apple.com, llvm-bugs@lists.llvm.org
Classification: Unclassified
Between the 3.9 branch and ToT the assertion on DeclCXX.h:912 started firing
for this example:
// clang++ -std=c++14 -c test.cpp
struct None {
None() = default;
None(None const&) = delete;
None& operator=(None const&) = delete;
};
template <class Tp>
struct BaseT {
union { Tp __val_; };
BaseT() : __val_() {}
};
BaseT<None> b;
Which results in
> Assertion `(data().DefaultedMoveConstructorIsDeleted ||
> needsOverloadResolutionForMoveConstructor()) && "move constructor should not
> be deleted"' failed.
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