hash.cairo

from starkware.cairo.common.cairo_builtins import HashBuiltin

// Computes the hash of two given field elements.
// The hash function is defined by the hash_ptr used.
// For example, pass the pedersen builtin pointer to compute Pedersen hash.
//
// Arguments:
//   hash_ptr - the hash builtin pointer.
//   x, y - the two field elements to be hashed, in this order.
//
// Returns:
//   result - the field element result of the hash.
func hash2{hash_ptr: HashBuiltin*}(x, y) -> (result: felt) {
    hash_ptr.x = x;
    hash_ptr.y = y;
    let result = hash_ptr.result;
    let hash_ptr = hash_ptr + HashBuiltin.SIZE;
    return (result=result);
}