Re: [boost] [container] [flat_map] Error with heterogeneous comparator and std::string_view

Hi, I'm using 1.68 release. Back in 1.67 heterogeneous lookup was not implemented, now in 1.68.0 it is implemented but fails to compile with std::string as key and std::string_view key for lookup in MSVC. /Viktor On Sun, Aug 12, 2018 at 7:09 PM Andrey Semashev via Boost < boost@lists.boost.org> wrote:

On 08/12/18 19:26, Viktor Sehr via Boost wrote:

...

On MSVC (latest) the following code yields a compile error with flat_map, but not with std::map. I do not have the knowledge of std::less<> to resolve what causes the error.

auto fm = boost::container::flat_map >{}; auto m = std::map >{}; auto k = std::string_view{ "my_key" }; auto x = m.find(k); // Compiles auto y = fm.find(k); // Does NOT compile

Looks like this is the same problem that you asked before:

http://boost.2283326.n4.nabble.com/container-flat-map-Sub-optimal-behavior-w...

What Boost version are you using?

_______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost