is_base_of.h

#pragma once
 
#include <type_traits>
#include <cgv/type/func/drop_const.h>
 
namespace cgv {
    namespace type {
        namespace cond {
 
template <typename base_type, typename derived_type>
struct is_base_of 
{ 
    static const bool value =  
        std::is_base_of<typename func::drop_const<base_type>::type,
                                   typename func::drop_const<derived_type>::type>::value;
};
 
        }
    }
}