tree 8b836bd471c1890f83302e3180154dd5c4635c87
parent 2d6116b53ff702b6a6953583c8d34fb7530ce42d
author Jason Rhinelander <jason@imaginary.ca> 1498066690 -0400
committer Jason Rhinelander <jason@imaginary.ca> 1498311993 -0300

Use std::type_info::name() for type lookups outside stdlibc++

Using `std::type_info::operator==` fails under libc++ because the .so
is loaded with RTLD_LOCAL.  libc++ considers types under such .sos
distinct, and so comparing typeid() values directly isn't going to work.

This adds a custom hasher and equality class for the type lookup maps
when not under stdlibc++, and adds a `detail::same_type` function to
perform the equality test.  It also converts a few pointer arguments to
const lvalue references, particularly since doing the pointer
comparison wasn't technically valid to being with (though in practice,
appeared to work everywhere).

This fixes #912.