Sums two signed integers
AND will push the sum of
b to the top of the stack.
PumpkinDB> +1 +2 INT/ADD +3
Runtime allocations for decoding numbers and heap allocation for the result.
EmptyStack error if there are less than two items on the stack
InvalidValue error if
b cannot be signed integers
works : +2 +1 INT/ADD +3 EQUAL?. empty_stack : [INT/ADD] TRY UNWRAP 0x04 EQUAL?. empty_stack_1 : [+1 INT/ADD] TRY UNWRAP 0x04 EQUAL?.