if_.h

#pragma once
 
namespace cgv {
        namespace type {
                namespace ctrl {
                        template <bool condition_type, typename then_type, typename else_type> 
                        struct if_ {
                                typedef then_type type;
                        };
                        template <typename then_type, typename else_type> 
                        struct if_<false,then_type,else_type> {
                                typedef else_type type;
                        };
                }
        }
}