scoped_ptr用于双指针

Question

是否有一种优雅的方式升级到使用boost的scoped_ptr或scoped_array剪切的以下代码？

MyClass** dataPtr = NULL;
dataPtr = new MyClass*[num];
memset(dataPtr, 0, sizeof(MyClass*));
allocateData(dataPtr); // allocates objects under all the pointers

// have fun with the data objects

// now I'm bored and want to get rid of them
for(uint i = 0; i < num; ++i)
  delete dataPtr[i];
delete[] dataPtr;

Answer 1

我现在通过以下方式做到了：

boost::scoped_array<MyClass*> dataPtr(new MyClass*[num]);
memset(dataPtr.get(), 0, num * sizeof(MyClass*));
allocateData(dataPtr.get());

似乎工作正常。