TR1共享阵列 [英] TR1 Shared Arrays

问题描述

我已经很难找到关于共享阵列TR1文档中引用。升压文档是相当清楚，还有就是C之间显著差异++新和新的[]前pressions。 shared_ptr的模板是为了指向正确把握动态分配使用的新反对建立。该shared_array模板是为了使用正确把握一个指向一个动态分配的数组新的[]。

I've had a hard time finding references in the TR1 documentation concerning shared arrays. The Boost documentation is fairly clear that there is a significant difference between the C++ "new" and "new[]" expressions. The shared_ptr template is meant to correctly hold a pointer to a dynamically allocated objected created using "new". The shared_array template is meant to correctly hold a pointer to a dynamically allocated array using "new[]".

我在更新一些code使用TR1的shared_ptr模板和相关功能的过程中，但我发现没有提到shared_array的。之间是否新和新的[]，并正确地销毁这些指针TR1的shared_ptr实现差异化？至于我可以从看TR1规范来讲，它似乎没有。如果是这样的话，我应该还是使用升压shared_array模板新的[]类型的分配？

I'm in the process of updating some code to use the TR1 shared_ptr template and associated functions, but I've found no mention of shared_array. Does the TR1 shared_ptr implementation differentiate between "new" and "new[]", and destroy those pointers correctly? As far as I can tell from looking at the TR1 spec, it appears it does not. If this is the case, should I still be using the boost shared_array template for "new[]" style allocations?

推荐答案

这是正确的，没有在TR1没有shared_array。

That is correct, there is no shared_array in TR1.

您可以，但是，提供自己的删除对象执行删除[]如果你想使用此构造：

You can, however, provide your own deleter object to perform "delete []" if you wish using this constructor:

template<class Other, class D>
   shared_ptr(Other* ptr, D dtor);

例如：

template<typename T>
struct my_array_deleter
{
   void operator()(T* p)
   {
      delete [] p;
   }
};

shared_ptr<int> sp(new int[100], my_array_deleter<int>());

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