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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;
C program to demonstrate Pointer to string: void main() { int a; char str[]="hello how are you?",*ptr_str; ptr_str=&
1. The management of a company would like to determine the median annual salary of its employees.Write a pascal program that display the number of employees and their median salary
# include stdio.h> # include conio.h> # include string.h> void main() { int i=0,j=0; char a[100],temp; clrscr();
#include #include #include void* memorycopy (void *des, const void *src, size_t count) { size_t n = (count + 7) / 8; char* destination = (char *) des; char* source =
#include using namespace std; void print(int marks_arr[],int cnt) { int ind[cnt]; int i=0; int j=0; int k=0; int s=0; for(k=0;k { ind[k]=0; } int cnt1=0; for(i=0;i
How to Create A Data File? A data file should be created before it can be processed. A stream-oriented data file is able to be created in two ways. One is to create the file st
#questionhow can i add new customer and alot him a new unique id ..
integer size
Aim: To implement a program to maintain information of employees in an educational institute using inheritance. Code: class staff {
Question: (a) (i) Explain how class members can be accessed when using objects of the class. Use a suitable example to illustrate your answer. (ii) Explain how the privat
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