https://llvm.org/bugs/show_bug.cgi?id=27785
Bug ID: 27785
Summary: Clang doesn’t implement DR1579 for id-expressions in
return statements
Product: new-bugs
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Given the following snippet:
#include <iostream>
#include <memory>
using namespace std;
struct Base
{
};
struct Derived : public Base
{
void DoStuffSpecificToDerivedClass()
{
}
};
std::unique_ptr<Base> factoryMethod()
{
auto derived = std::make_unique<Derived>();
derived->DoStuffSpecificToDerivedClass();
return derived;
}
Clang gives the error:
error: no viable conversion from returned value of type 'unique_ptr<Derived,
default_delete<Derived>>' to function return type 'unique_ptr<Base,
default_delete<Base>>'
return derived;
^~~~~~~
Both VS2015 and GCC 5.1 compile without any error.
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