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.






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Which of the following statements is correct?

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






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Which of the following statement is correct about the references?






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A reference is declared using the _____ symbol.






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Which of the following statement is correct?






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Which of the following statements is correct?

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






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Which of the following statements is correct?

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






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Which of the following statement is correct?






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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.






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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.






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