Pointer Part 2-Computer Fundamentals-Lab Codes, Exercises of Computer Fundamentals

Download Pointer Part 2-Computer Fundamentals-Lab Codes and more Exercises Computer Fundamentals in PDF only on Docsity! #include <stdio.h> #include <stdlib.h> /* prototype of function print that accept a pointer to pointer (in other words * 2D array */ void print(int **ar, int r, int c); int main() { int r=3,c=5,i,j; // int a1[2][4]={{1,2,3,4},{5,6,7,8}}; int **aptr; // pointer to pointer // initializing arrays of pointer of size r aptr=(int*)malloc(r*sizeof(int*)); for(i=0;i<r;i++) { aptr[i]=(int)malloc(c*sizeof(int)); // initializing each pointer with array size of c of interger } printf("Done with initializing \n\n\n"); for (i=0;i<r;i++) { for(j=0;j<c;j++) { aptr[i][j]=rand()%20; } } printf("Done with initialization Value \n\n\n"); for (i=0;i<r;i++) { for(j=0;j<c;j++) { printf( "aptr[ %d ][ %d ] = %d\n",i ,j,aptr[i][j] ); } } printf("Going in to function \n\n\n"); print(aptr,r,c); printf("Coming out of function \n\n\n"); /* * Should free memory at the end of the program or when no more required */ for(i=0;i<r;i++) { free(aptr[i]); } free(aptr); docsity.com