id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
13137,"boost::optional::operator*() doesn't have ""const &&"" overload, allowing incorrect usage",for.gcc.bugzilla@…,Fernando Cacciola,"{{{
#include <boost/optional.hpp>

const boost::optional<int> f()
{
    return {1};
}

int main()
{
    const int& ref = *f();
    // creates a boost::optional temporary
    // ""*tmp"" binds to ""optional::operator*() const&""
    // ""ref"" starts pointing to internals of the returned temporary
    // temporary gets destroyed
    // we have a dangling reference
}
}}}

at the same time, std::optional in C++17 does have
{{{
constexpr const T&& operator*() const &&;
}}}
[http://en.cppreference.com/w/cpp/utility/optional/operator* overload], which lets the code above work correctly.",Bugs,new,To Be Determined,optional,Boost 1.65.0,Problem,,,