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The void longjmp( jmp-buf env, int val) function causes setjmp() macro to return _______ value; if val is 0.

(a) zero

(b) one

(c) null

(d) no return

I have been asked this question in an online interview.

My doubt is from Non-Local Jumps in division C Library of C

1 Answer

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Best answer
The correct choice is (b) one

The explanation is: The longjmp() function cannot cause the setjmp() to return value zero,if the variable val is zero. It always return one when the value of val is 0.

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