c++ - 转换 shared_ptr 类型 vector 的迭代器

Question

如何转换 shared_ptr 类型 vector 的迭代器？考虑以下示例:

typedef boost::shared_ptr < MyClass > type_myClass;

vector< type_myClass > vect;
vector< type_myClass >::iterator itr = vect.begin();

while(itr != vect.end())
{
   //Following statement works, but I wish to rather cast this 
   //to MyClass and then call a function?
   (*itr)->doSomething(); 
}

Answer 1

您不想转换，而是提取对该对象的引用:

MyClass & obj = *(*it); // dereference iterator, dereference pointer
obj.doSomething();