Can not Use any control constructs such as if, do, while, for, switch, etc

Its a Linux code the questions are down below

example:

* pow2plus1 - returns 2^x + 1, where 0 <= x <= 31

*/

int pow2plus1(int x) {

/* exploit ability of shifts to compute powers of 2 */

return (1 << x) + 1;

}

/*

* conditional - same as x ? y : z

* Example: conditional(2,4,5) = 4

* Legal ops: ! ~ & ^ | + << >>

* Max ops: 16

* Rating: 2

*/

int conditional(int x, int y, int z) {

return 2;

}

/*

* minusTwo - return a value of -2

* Legal ops: ! ~ & ^ | + << >>

* Max ops: 2

* Rating: 10

*/

int minusTwo(void) {

return 2;

}

/*

* TMax - return maximum two's complement integer

* Legal ops: ! ~ & ^ | + << >>

* Max ops: 6

* Rating: 10

*/

int tmax(void) {

return 2;

}