Template

we are going to discuss about the template 

Template is a skeleton for which we are going to give different body .

where it can be used

one important thing comes in to my mind ... that is logs 

I have written one third party app , also it has one log to write some important logs 

well, the input param could be either int , string  ,double  or float .. I guess , for logs we are not using more than this primitive 

Code

template <class T>

void log_function(T in , const char* tag)

 {

 cout<<tag << "\t" << in ;

}

see , how good it is , otherwise we are going to write a overload function which will take the different data type 

by the way , when call is made 

Ex:    log_function(15 ,"TAG LINE");

         log_function("hello world" ,"TAG LINE");

         log_function(15.45 ,"TAG LINE"); 

compiler generates function for each data type . So, it internally does the overloading :) 

good news is , we can avoid manual mistakes