This is not a question.
Swapping has nothing to do with programming languages.
You have to pass the address of the variables.void swap (int *pa, int *pb){...}
swapping is nothing but interchanging the values of a given character for example : if a=5 , b=4 before swapping then it becomes a=4,b=5 after swapping
#include<conio.h> main() { int a,b; scanf("%d%d",&a,&b); printf("Before swapping A= %d B=%d",a,b); swap(a,b); getch(); } void swap(int a,int b) { int c; c=a; a=b; b=c; printf("After swapping A= %d B=%d",a,b); }
Would you like to take part in a house swapping program?
Swapping was an older form of memory management. It was moving from/to secondary storage a whole program at a time, in a scheme known as roll-in/roll-out. Now swapping is a fairly close synonym of paging.
c program was introduced in the year 1972 by Dennis RitchieNo, it was the C language, not the C program.
the features of a C program
I think it is 'execution of a C program'.
Thrashing in C refers to excessive swapping of data between RAM and virtual memory, significantly slowing down the system due to the high overhead involved in managing memory. It typically occurs when a program doesn't have enough physical memory and constantly swaps data in and out of virtual memory.
#include<stdio.h> #include<conio.h> void main() { int a=2,b=3; swap(a,b); printf("%d%d",a,b); getch() } swap(int *x,int *y) { int t; t=*x; *x=*y; *y=t; printf("%d%d",x,y); }
1. In overlays there is no need for the whole program to reside in main memory .here if say if a program has two functions say f1(50k) and f2(70k) such that they are in mutual exclusion with each other then, the memory of only 70k will be allocated for both the functions and the one that is needed at a particular moment can reside in the main memory . this even saves the memory ,But it is not in case of swapping . here the whole program needs to reside in main memory 2. overlays require careful and time consuming planning while in swapping it is not needed 3. swapping needs to issue system calls for requesting and releasing memory which is not in case of overlays