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26. Specifically, overloading involves
one function with a variety of arguments
multiple functions defined with the same name
one function with multiple names
multiple functions with different names.
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27. A usable function header for an overloaded » operator for a Number class is
Number operator » (istream & in, Number &num)
istream & operator » (istream & in, const Number & num)
friend istream & operator» (istream & in, Number & num)
istream & operator » (istream & in, Number &num)
28. If » operator is overloaded properly for use for input with a number class, and a and b are member of the Number class, which of the following statements allowed?
cin >>a
cin >> a,b
Both (a) and (b)
None of these
29. Assume num = 8; the value of expression num++ is
7
8
9
Impossible to tell
30. If ++ operator is overloaded properly, then operator ++ () function returns
a copy of an incremented member of a class
a copy of an incremented data item
a reference to a class member data item
this pointer
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