From: David Abrahams <dave@boost-consulting.com>
Rob Stewart <stewart@sig.com> writes:
From: "Neal D. Becker" <nbecker@hns.com>
template<class T> inline T& lvalue_cast (const T& rvalue) { return const_cast<T&> (rvalue); }
That's just a different spelling of const_cast. To make it useful, you need to make it more generic:
template <typename T> inline T & lvalue_cast(T & value_i) { return value_i; }
That, of course, permits you to silently cast away the const-ness of const lvalues.
That's news to me. AFAICT it's totally safe, but it doesn't work with rvalues, which sort of undermines the whole thing.
I didn't make it clear, I see now, but I meant adding the overload so that both rvalues and lvalues could be passed through lvalue_cast to get an lvalue. -- Rob Stewart stewart@sig.com Software Engineer http://www.sig.com Susquehanna International Group, LLP using std::disclaimer;