UGC NET CSE | November 2017 | Part 2 | Question: 11

Question

$\text{prtdata}$ is a pointer to a data type. The expression $^*\text{prtdata}++$ is evaluated as (in C++)

• A. $^*(\text{prtdata++})$
• B. $(^*\text{prtdata})++$
• C. $^*(\text{prtdata})++$
• D. Depends on compiler

Comments

Post increment is higher priority than dereference operator.

So it evaluated as *(ptrdata++).

it should be option 1.

Answer 1

Post-increment (++) has higher precedence than dereference (*). Hence it increments the address that the pointer holds, then dereferences it

answer will be *(ptrdata++)

Answer 2

++ and * are unary operators and they have same precedence. The order of evaluation is judged by associativity.

They have right to left associativity so ptrdata ++ is evaluated first then * is applied.  

Ans is 1)*(ptrdata++)