Managed C++ value types and managed pointers.

• • Reply

  14 years ago

  by premartha

  Nikhil Jain

  , United States

  Joined 15 years ago
  hi,
  I am basically a C++ and C# programmer and a beginner in the field of Managed C++.NET
  
  I have few doubts, please pardon me if they seem senseless or absurd.
  
  1) What is the difference between a managed pointer and unmanaged pointer, apart from _gc and _nogc syntax??
  
  I want to know the way these pointer are allocated and how they work exactly. In main function and when defined as a part of managed and unmanaged classes.
  
  2) In a book i read...
  
  Besides being allocated on stack, value types can be allocated on unmanaged C++ heap using the __nogc new operator, but cannot be allocated on managed heap using the __gc new operator unless you define a managed pointer to value type.
  
  could not understand the above marked part. How can we actually define a managed pointer to a value type??
  
  3) In another article i read...
  
  Pointers to value types are managed by default.
  
  means if i define my _value struct or class, the pointers to them will be managed?? howcome, Managed pointers can point to value types??
  
  I request a fair explanation and also links to some good artciles which can answer and explain me these things in detail.
  
  thanks in advance.
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  Report abuse