C++ References: Interview questions
What is the difference
between pass by value and pass by reference?
Latest answer: In pass by value approach, the called function
creates another copies of the variables passes as arguments. In this approach,
the values of the original variables remain unchanged. However, we
.....................
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answer
What are References in C++? What is a local
reference?
Latest answer: A restricted type of pointer in C++ is known as
a reference. A reference can be assigned only once and can not have a null
value......................
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Latest answer: A reference variable is just
like pointer with few differences. It is declared using & operator. A
reference variable must always be initialized. The reference
variable.............
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Pass by value:
Latest answer: The callee function receives a set of values
that are to be received by the parameters. All these copies of values have
local scope, i.e., they can be accessed only by the callee
function..............
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Latest answer: A reference must be
initialized at the time of declaration whereas not needed in case of pointer. A
pointer can point to a null object...............
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