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Programming and Data Structures · Programming in C
Official IIT answer key · IIT Kharagpur · Audited Aug 2026
GATE CSE 2014 Set 2 Q10 · NAT · 1 mark
func shown below:
int func(int num) {
int count = 0;
while (num) {
count++;
num>>= 1;
}
return (count);
}
The value returned by func(435) is ________.Key concept
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Topic notes
In GATE CS, Programming in C is tested extensively through rigorous code tracing, pointer mechanics, and fundamental semantics rather than high-level syntax trivia. Questions emphasize pointer arithmetic and multidimensional array decay, storage classes (especially static local variables), evaluation order, side effects of increment/decrement operators, parameter passing mechanisms (pass-by-value vs pass-by-reference), and recursive program state tracking. The topic features a nearly balanced split between NAT and MCQ items across 1-mark and 2-mark categories, demanding precise, bug-free execution traces without a compiler.
Full Programming in C guide →Consider the function func shown below: int func(int num) int count = 0; while (num) count++; num>>= 1; return (count); The value returned by func(435) is …
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