What do you mean by reference variable in c++?

• A variable provides an alias(alternative name) for previously defined variable.
  Declaring a variable as a reference rather than a normal variable simply appending an ampersand to the type name, such as this "reference to an int"
  int& foo = ....;
  
  for example
  int x;
  int& foo = x;
  
  // foo is now a reference to x so this sets x to 56
  foo = 56;
  std::cout
• 9 years agoHelpfull: Yes(1) No(0)