C参考文献提到了一个名为
fancy pointers的概念.我从最近一次严重的投票和后来删除的问题中了解到了它们的存在.
这个定义模糊不清：
When the member type pointer is not a raw pointer type,it is commonly referred to as a “fancy pointer”.
他们的用例示例如下：
An example of a fancy pointer is the mapping address-independent@H_404_12@ pointer boost::interprocess::offset_ptr,which makes it possible to@H_404_12@ allocate node-based data structures such as std::set in shared memory@H_404_12@ and memory mapped files mapped in different addresses in every@H_404_12@ process. Fancy pointers can be used independently of the allocator@H_404_12@ that provided them,through the class template std::pointer_traits.
我不明白这个解释.创建花式指针的语法是什么？为什么我不能在这种情况下使用常规指针？
