references

Functions can be declared to return a reference type. There are reasons to make such a declaration/Which of the following reasons are correct?

  1. The information being returned is a large enough object that returning a reference is more efficient than returning a copy.
  2. The type of the function must be a R-value.






Which of the following statements is correct?

  1. Change a reference changes the referent.
  2. We can create an array of references.






Which of the following statement is correct about the references?






A reference is declared using the _____ symbol.






Which of the following statement is correct?






Which of the following statements is correct?

  1. A reference is not a constant pointer.
  2. A referenced is automatically de-referenced.






Which of the following statements is correct?

  1. An array of references is acceptable.
  2. We can also create a reference to a reference.






Which of the following statement is correct?






Which of the following statements is correct?

  1. Once the variable and the reference are linked they are tied together.
  2. Once the reference of a variable is declared another reference of that variable is not allowed.






Which of the following statements is correct?

  1. We can return a global variable by reference.
  2. We cannot return a local variable by reference.