How to acess struct strName in another class named f2.cpp

class A
{
   int i;
   char i2;
	
   struct strName
   {
      char b;
      int c;
   }
	
   union str1
   {
      int p;
      char t;
   }
	
   union str2
   {
      int p1;
      char t1;
   }
}