Please explain the each line of codes. Especially line 262. Why it has to be shifted by 31 bytes. Please explain everything. What is the MSB?

Its pointer lab in C language

Thank you

* * * * 87 * Return 1 if ptr points to an element within the specified intArray, O otherwise. 38 * Pointing anywhere in the array is fair game, ptr does not have to 39 * point to the beginning of an element. Check the spec for examples if you are 40 * confused about what this method is determining. 41 * size is the size of intArray in number of ints. Can assume size != 0. 42 * Operators / and % and loops are NOT allowed. 43 * 44 * ALLOWED: 45 Pointer operators: *, & 46 Binary integer operators: -, +, *, >, == , 47 Unary integer operators: !, ~ 48 * Shorthand operators based on the above: ex. , !=, 1, % 253 * Unary integer operators: 254 */ 255 int withinArray(int * intArray, int size, int * ptr) { 256 // Your code here 257 // intArray >31) * !((limit-diff)>>31); 263 264 } * *