INT/SUB
Subtracts one signed integer from another
Input stack: a b
Output stack: c
SUB will subtract of b from a and push it to the top of the stack.
PumpkinDB> +2 +1 INT/SUB
+1
Allocation
Runtime allocations for decoding numbers and heap allocation for the result.
Errors
EmptyStack error if there are less than two items on the stack
InvalidValue error if a or b cannot be signed integers
Tests
works : +2 +1 INT/SUB +1 EQUAL?.
negative_value : +1 +2 INT/SUB -1 EQUAL?.
empty_stack : [INT/SUB] TRY UNWRAP 0x04 EQUAL?.
empty_stack_1 : [+1 INT/SUB] TRY UNWRAP 0x04 EQUAL?.