Re: [boost] [utility] string_ref construction from rvalue reference to string

On Sun, Aug 3, 2014 at 4:55 PM, Andrey Semashev wrote:

boost::reference_wrapper will not construct from rvalues as of 1.56. std::reference_wrapper already doesn't.

OK, it's possible to write custom function template basic_string_ref unsafe_make_ref(std::basic_string && str) { return { str }; } and use it. Even then, IMHO string_ref should not

require these tricks, it should work transparently. I'm ok with leaving it vulnerable to incorrect use if it's not possible to protect it without sacrificing usability.

I'm not sure that one extra call [`print(unsafe_make_ref(getStr()))` instead of `print(getStr())`] is too high usability price for the safety in common case. Of course, it's only IMHO. -- Andrey