Question

What are templates in c++? How are they made? Write a program to explain function template.

Answer 1

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A template is a basic but then exceptionally incredible asset in C++. The straightforward thought is to pass information type as a boundary with the goal that we don't have to compose a similar code for various information types. For instance, a product organization may require sort() for various information types. Instead of composing and keeping up the various codes, we can think of one sort() and pass information type as a boundary.

The overall type of a template work definition is appeared here −

template <class type> return_type function_name(arguments list) {
   // body of function
} 

#include <iostream>
using namespace std;
template <typename T>
T fmax(T x, T y)
{
  return (x > y) ? x : y;
}

int main()
{
  cout << fmax<int>(35, 79) << "\n";
  cout << fmax<double>(37.05, 74.70) << "\n";
  cout << fmax<char>('w', 'g') << "\n";

  return 0;
}