c++ - can I specialize operator<<? -

I want to be an operator expert & lt; & Lt; But this code is not compiled;

  template & lt; & Gt; Std :: ostream & amp; For operator & lt; & Lt; & Lt; My_type & gt; (Std :: ostream & strm, my_type obj); To be an expert on a template, you must first declare a template.  
 A free  operator & lt; & Lt; In case of  you do not need a template; You can overload it for your  my_type  category: 
 
  std :: ostream & amp; Operator & lt; & Lt; (Std :: ostream & strm, my_type obj);  
 
 If your object is not trivial in size, you may want to consider passing through a conferencing context so that you do not copy it every time you stream it: 
 
  std :: ostream & amp; Operator & lt; & Lt; (Std :: ostream & strm, const my_type & obj); (Technically you can be an expert of the  operator  , but I do not think this is what you want To use a template operator in general with the syntax & lt; & lt; you need to make template specialties lessenable from one of the parameter types. 
 
 Example 
 
  / / template session  
 
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