C interview2

Question

main(int argc, char *argv[])

{(main && argc) ? main(argc-1, NULL) : return 0;}

 

a. Runtime error.

b. Compile error. Illegal syntax

c. Gets into Infinite loop

d. None of the above

Answer 1

Here, usage of ternery operators is having illegal syntax . As return which is a statement line should never be used in ternary operators . 

Syntax is :==

(cond.) ? Expression 1 : expression 2

Return is not a expression.

Moreover, exp 2 data type should also be implicitly convertible to exp 1, which cannot be done here..

Return (( a > b ) ? a : b) is valid syntax..

Comments

any other error? like main is in statement line like this?

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no, it is a standard way of declaring main....

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main && argc what it is taking?

and

main(argc-1, NULL) what it is returning?

explain a bit.

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@srestha, i think it is not a complete code .

they are just asking for a particular statement in the code.