C++ create function with return value

In C++ you can create a function that returns a value and the type should defined as part of function definition.

C++ create function syntax

return_type myFunction() {
  // code to be executed
}

C++ example to create a function with return value

In below example we will create a function that does a sum and return a value to main function.

#include <iostream>

using namespace std;

int doSum()
{
  return 2+3;
}

int main ()
{
  int value = doSum();
  cout << value;
  return 0;
}

Output

Another example of C++ example function with String return value

In below example we will create a function that creates a string return value.

#include <iostream>

using namespace std;

string returnHelloWorld()
{
  return "Hello World";
}

int main ()
{
  string value = returnHelloWorld();
  cout << value;
  return 0;
}

Output

Hello World

Conclusion

In this page (written and validated by A. Gawali) you learned about C++ create function with return value . What's Next? If you are interested in completing Cpp tutorial, your next topic will be learning about: Cpp Create function with parameters.

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