Applied Test series: C-programming

Question

I know the answer but need a good explanation for this question. Can anyone help. Thanks!

Comments

C++ | Nested Ternary Operator - GeeksforGeeks

i+1*i+2 is = 4 means true. --i will be returned which is 0.

While(0)

// Nothing will be printed.

Now i is 0 and j is 1.

Answer 1

Associativity of ternary operator is right to left, and precedence of ternary operator is only greater than assignment operators which doesn’t exist in the while condition.

Thus first j ? i*3 : --j is executed, leading to the value of 3.

Now the first ternary operator is executed. Since precedence of addition/ multiplication are higher than ?: hence

i + 1*i + 2 is executed which gives value of 4 which is true value. thus the ternary operator replaces the condition statement with --i which decrements the value of i to 0 and returns 0. thus while loop exits.

Hence printf prints 0

Hope this helps

Comments

Thanks! got it.

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If while(0) then no printf statement will execute.. then ans will be option d.. isn't it?

Answer 2

it prints nothing option d is right.