Returning a reference : reference « Data Types « C++ Tutorial

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C++ Tutorial » Data Types » reference 
2.32.6.Returning a reference
#include <iostream> 
using namespace std; 
 
double &f()
 
double val = 100.0
 
int main() 

  double x; 
 
  cout << f() << '\n'
 
  x = f();           // assign value of val to x 
  cout << x << '\n'
 
  return 0

 
double &f() 

  return val; // return reference to val 
}
100
100
2.32.reference
2.32.1.Creating and Using References
2.32.2.Use References operator &
2.32.3.References must be initialized
2.32.4.Change reference value
2.32.5.Reassigning a reference
2.32.6.Returning a reference
2.32.7.Assign value to a reference-return
2.32.8.Return a reference to an array element.
2.32.9.Use an independent reference.
2.32.10.class for counted reference semantics
2.32.11.Use reference to swap value
2.32.12.constant references
2.32.13.Use reference as a return type
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