INT[size]/ADD
Sums two signed sized integers, the size can be i8, i16, i32 or i64.
Input stack: a b
Output stack: c
AND will push the sum of a and b to the top of the stack.
PumpkinDB> +1i8 +2i8 INT8/ADD.
0x03
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, or if either the operands or the result cause an overflow.
Tests
works_i8 : +2i8 +1i8 INT8/ADD +3i8 EQUAL?.
empty_stack_i8 : [INT8/ADD] TRY UNWRAP 0x04 EQUAL?.
empty_stack_i8_1 : [+1i8 INT8/ADD] TRY UNWRAP 0x04 EQUAL?.
works_i16 : +2i16 +1i16 INT16/ADD +3i16 EQUAL?.
empty_stack_i16 : [INT16/ADD] TRY UNWRAP 0x04 EQUAL?.
empty_stack_i16_1 : [+1i16 INT16/ADD] TRY UNWRAP 0x04 EQUAL?.
works_i32 : +2i32 +1i32 INT32/ADD +3i32 EQUAL?.
empty_stack_i32 : [INT32/ADD] TRY UNWRAP 0x04 EQUAL?.
empty_stack_i32_1 : [+1i32 INT32/ADD] TRY UNWRAP 0x04 EQUAL?.
works_i64 : +2i64 +1i64 INT64/ADD +3i64 EQUAL?.
empty_stack_i64 : [INT64/ADD] TRY UNWRAP 0x04 EQUAL?.
empty_stack_i64_1 : [+1i64 INT64/ADD] TRY UNWRAP 0x04 EQUAL?.