A handle to an object on the managed heap points to the "whole" object, and not to a member of the object.

See gcnew for information on how to create an object on the managed heap.

In Visual C++ 2002 and Visual C++ 2003, __gc * was used to declare an object on the managed heap. The ^ replaces __gc * in the new syntax.

The common language runtime maintains a separate heap on which it implements a precise, asynchronous, compacting garbage collection scheme. To work correctly, it must track all storage locations that can point into this heap at runtime. ^ provides a handle through which the garbage collector can track a reference to an object on the managed heap, thereby being able to update it whenever that object is moved.

Because native C++ pointers (*) and references (&) cannot be tracked precisely, a handle-to object declarator is used.

Member selection through a handle (^) uses the pointer-to-member operator (->). 

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M bsa

подобные вопросы не для этого форума

Это сообщение отредактировал(а) bsa - 26.10.2010, 10:18