scrapper

Hi,

I am trying to write the a program as follows:

isLess - if x < y then return 1, else return 0. Example: isLess(4,5) = 1.
Legal operations are ! ~ & ^ | + << >>

I cannot use loops or logical operators. This is running on a 32 bit system.

My code so far is:

int isLess(int x, int y) {

return !((y + (~x + 1) ) >> 31) ;
}

It seems to work for all numbers except for negative numbers, example:
Test isLess(1768011938[0x6961b8a2],-2147483644[0x80000004]) failed.
Gives 1[0x1]. Should be 0[0x0]

Does anyone see anything obviously wrong with my code? It's driving me crazy!

Thanks,