c++ - C# : Class pointer override -

is there way force class or struct in c# point specific block of memory, in memorystream or array of bytes? if so, there way call constructor after casting? realize there little practicality in this, , it's potentially unsafe; i'm trying understand facets of language.

here demo c++ code of i'm describing:

#include <stdio.h> #include <conio.h>  // don't worry class definition... name implies, it's junk class junkclass { private:     int a;     int b;  public:     junkclass(int aval, int bval) : a(aval), b(bval) { }     ~junkclass() { }      static void *operator new(size_t size, void *placement){ return placement; } }; 

//..

// assuming 32-bit integer , no padding // memory class pointer cast unsigned char pbytes[] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 

//..

int main(void) {     // next 2 lines want in c#     junkclass *pclass = (junkclass *)pbytes; // class pointer pointing pbytes     pclass = new(pbytes) junkclass(0x44332211, 0x88776655); // call constructor using placement new operator      // verify bytes set appropriately class     // should print 11 22 33 44 55 66 77 88 console     unsigned char *p = pbytes;     (int = 0; < 8; i++)         printf("%02x ", *(p++));      // call destructor     pclass->~junkclass();     while (!_kbhit());     return 0; } 

the short answer "no". cannot c# create object in specific place. long answer "it depends on purpose". if want object stay created consider using gchandle.alloc. can search "pinned objects"(so question pinned objects). can pin array of objects , reuse it's elements "allocated" in specific place.