Question

I have created a structure of different data types and i want to return each type of data. does this can be done using a function template which takes a different data argument not included in structure or no arguments?

I have something like this,

struct mystruct{
int _int;
char _c;
string _str
};

In function template(int i)
{
     mystruct s;

      switch (getInput)
     {
      case 1:
        return s._int;
      case 2:
        return s._c;
      case 3:
        return s._str;
   }   
} 

void main()  

{
   int getInput = 1;
   //pass getInput value to function template
}

Answer 1

Yes:

template<class T>
T f() {
  return 0; // for the sake of example
}

int main() {
  return f<int>(); // specify the template parameter
}

template<class T>
vector<T> another_example();
// use another_example<int>() which returns a vector<int>