/*
Program: Write a program to illustrate the results of type conversion
between signed and unsigned long and short integer data types.
Author: www.atnyla.com
*/
#include "stdio.h"
int main()
{
int si;
unsigned int usi;
char ch = 'a'; /* Most significant bit will be zero*/
si = ch; /* will give small +ve integer*/
usi = ch;
printf("c = %c\n si = %d\n usi = %u\n", ch, si, usi);
ch = '\377'; /* set all bits to 1 */
si = ch; /* sign extension makes negative */
usi = ch;
printf("si = %d\n usi = %u\n",si,usi);
return 0;
}
c = a
si = 97
usi = 97
si = -1
usi = 4294967295
Press any key to continue . . .
First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.
Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.