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Call by reference:
Arguments to a function can be passed in two way; one by call by value and other by call
by reference. Call by value is passed either through a constant or variable. The call by reference is passed through address operator (&). In C the function definition argument must be declared as pointer variable to pass by reference, where as in C++ the call by reference can be used without declaring the function arguments as pointer variables. But in C++ both pointer argument method and without pointer argument can be adopted.
void f_ref(int &a, int &b); // void f_ref(int, int) is wrong for reference variable;
void main( )
{int a, b;
f_ref(a, b); // The value a is 10 and b is 20.
}
void f_ref(int &x, int &y)
{x =10;
y=20;
how c program starts executing?
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Access privileges 1. If the designer of the base class needs no one, not even a derived class to access a member, then that member should be made private. 2. If the designer
Problem: a) Give and Illustrate with the help of diagrams, four topologies for the Network Information System (NIS). b) Give methods for creating user accounts and groups.
a program to accept average, if average is 75 to 85 print it out else bypass using counter. enter and process 5 records
Can I explicitly call a destructor if I've allocated my object with new?
program for singly linked list with out header
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