Parameter values for templates


  • Besides the template arguments preceded by the class keywords that represent a type, function templates and class templates can include other parameters that are not types whenever they are also constant values, like for example values of fundamental types.
  • As an example see this class template that serves to store arrays:
  • It is also possible to set default values for any template parameter just as it is done with function parameters.
  • Some possible template examples seen above:
  • template < class T > // The most usual: one class parameter. 
  • template < class T, class U >  	//Two class parameters.

  • template < class T, int N > 	//A class and an integer. 

  • template < class T=char >  	//With a default value. 

  • template < int Tfunc (int) > 	// A function as parameter
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