https://bugs.llvm.org/show_bug.cgi?id=37862
Bug ID: 37862
Summary: call to implicitly-deleted default constructor
Product: clang
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: zhong...@pku.org.cn
CC: dgre...@apple.com, llvm-bugs@lists.llvm.org
The code is as follow:
template<typename T>
struct wrap
{
wrap() = default;
wrap(wrap&&) = default; // Line 5
wrap(const wrap&) = default;
T t;
};
struct S {
S() = default;
S(const S&){}
S(S&&) = default;
};
typedef wrap<const S> W;
W get() { return W(); } // Line 19
int main() {}
clang++ rejects this code, and produces error messages:
error: call to implicitly-deleted default constructor of 'W' (aka 'wrap<const
S>')
W get() { return W(); } // Line 19
Indeed, the code comes from a gcc bug report:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53733
A previous version of g++ also rejects the code, but is fixed.
Please check the problem.
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