2011/3/10 Steven Watanabe <watanabesj@gmail.com>
Thanks to Christopher Jefferson, I discovered a bug in the trunk (in
fact in 1.46.0) for is_base_of in the type_traits library.
is_base_of<int, int>::value should be true according to the doc: "is_base_of<Base, Base>::value is an integral constant expression that evaluates to true: a class is regarded as it's own base.
On 03/10/2011 04:54 AM, Frédéric Bron wrote: int is not a class.
Hello, I am about to use is_base_of, and remembered this discussion, so I looked into the docs. From 1.45.0 docs: Note that is_base_of<X,X> will always inherit from true_type. This is the case even if X is not a class type. This is a change in behaviour from Boost-1.33 in order to track the Technical Report on C++ Library Extensions. I understand, that this means is_base_of<int,int> should be true. Has this changed in 1.46.0, or are the docs wrong? Regards, Kris.