c++ - passing allocated pointer before it allocated -

I am studying open source project ROS when I saw strange code

  Server server (n, "do_dishes", boost :: bind (and executed, _1, and server), incorrect);   
 The variable  server  is used before assigning it as  server . Is this possible? At least, my Visual Studio 2010 Compiler does not understand that style of code. Please tell me whether this is actually a possible code or not.  
 The original document of the code:  
 
 --------- Added  
 Thanks for your kindness, however, the "server" Found: The undisclosed identifier "error when I compile it." So I tested the simple code  
  class TestCls {public: TestCls (TestCls * AA) {}}; int main (int argc , Char ** argv) {TestCls TT (& amp; टीटी);}   
 This also creates the same error "TT: Undeclared identifier" am I forgetting something? Please Help me.   
 
 
 This is legal when they are declared, then the variable is in the radius, this rule exists to create self-referenced data-structures in a row. The object can point as long as the object is not created.  
 Since the indicator is being passed in the  server  constructor, it works, Unless the  server  function object is colored Before doing the right forward.