无操作释放器升压:: shared_ptr的 [英] No-op deallocator for boost::shared_ptr

问题描述

是否有升压股票无操作释放器与使用的boost :: shared_ptr的的静态对象，等等。

Is there a stock no-op deallocator in Boost to use with boost::shared_ptr for static objects, etc.

我知道这是超小事来写，但我不希望我的洒code额外的小功能，如果已经有一个可用的。

I know it's ultra-trivial to write, but I don't want to sprinkle my code with extra tiny functions if there is already one available.

推荐答案

是的，有一个在这里：

#include <boost/serialization/shared_ptr.hpp> // for null_deleter

class Foo
{
  int x;
};

Foo foo;
boost::shared_ptr< Foo > sharedfoo( &foo, boost::serialization::null_deleter() );

有，当然，与你需要知道你叫不存储供以后使用的shared_ptr的功能，因为它实际上违背的shared_ptr，该政策的事实的危险底层对象仍然有效，直到该shared_ptr的最后isntance的。

There is, of course, a danger with the fact that you need to know the function you call doesn't store the shared_ptr for later use, as it actually goes against the policy of shared_ptr in that the underlying object remains valid until that of the last isntance of the shared_ptr.

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