Function pointer for GC

Function pointer for GC

• Philip Borchert

  I do not think there is a concept of function pointers at the CLI language level.

  Pinning pointers refer to class data (or the class itself), not methods of a class.

  
  

• John J. Adams

  You are almost there - the correct syntax is:

  foo(d, &galvac_c::foo);

  
  
  

• Hicham_IT

  I am sorry, thats a typo.
  The reason I posted because I am getting a compiler error (C3374) . My question should be reformatted to : Can I pass pointer to member function of a Managed class to un-managed class without using delegates.
  
  If I CANNOT then I will just use delegates instead.
  
  

• Guillermo Leal-Collazo

  Is this valid even if the function is static In case of object what if I pin the object
  
  

• Rockfan

  No: this is not possible. There is really no such think as a pointer-to-member for a managed class (the internals of a managed class are completely managed by the CLR and hence you can't create such a thing). You'll have to use a delegate for this purpose.
  
  

• Othmane Rahmouni-MSFT

  By pinning an object we won't let GC to move our object. So that it will have a fixed address. Anyway, I will use delegates...
  
  
  
  

• Rj_murray

  A non-gc heap. Here is a pseudo code:
  __gc struct galvac_c {
  ....
  int **d;
  static void foo(galvac_c *instance, int *a) {
  ....
  }
  };
  void boo( galvac_c* inst, void (*foo)( galvac_c* ,int)) {
  ...
  foo(inst,cur_num);
  ...
  }
  int _tmain {
  galvac_c *d = new galvac_c();
  foo(d,galvac_c::foo);
  }
  
  

• adrianol

  Are you asking about passing a pointer to an allocation on the gc heap, or on the non-gc heap
  
  
• Function pointer for GC