tree d13e1057f082a94e78056b679ce7c0b98f106b4b
parent d9d224f28826040f181e40c4feeb115c8f1034c0
author Jason Rhinelander <jason@imaginary.ca> 1484411128 -0500
committer Wenzel Jakob <wenzel.jakob@epfl.ch> 1487974790 +0100

Make is_template_base_of ignore cv qualification

`is_template_base_of<T>` fails when `T` is `const` (because its
implementation relies on being able to convert a `T*` to a `Base<U>*`,
which won't work when `T` is const).

(This also agrees with std::is_base_of, which ignores cv qualification.)