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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
What is the output of the following code snippet?
#include <stdio.h>
main() {
int x = 65, *p = &x;
void *q = p;
char *r = q;
printf("%c", *r);
}
(A) $A$
(B) $Z$
(C) $65$
(D) None of the above
Solution
Step 1: Initialization
$x = 65$
In ASCII, $65 \equiv A$
Step 2: Pointer flow
$p = \&x \;\; \rightarrow$ pointer to integer
$q = p \;\; \rightarrow$ void pointer
$r = q \;\; \rightarrow$ typecast to char pointer
Step 3: Dereferencing
Since r is char*, it reads 1 byte.
The value stored = $65$
Step 4: Printing
printf("%c", *r); prints character with ASCII $65$.
Hence, the output is:
$\; \boxed{A} \;$
Correct Answer: (A)
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