UINT[size]/ADD
Sums two unsigned sized integers, the size can be u8, u16, u32 or u64.
Input stack: a b
Output stack: c
AND will push the sum of a and b to the top of the stack.
PumpkinDB> 1u8 2u8 UINT8/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 unsigned integers or if either the operands or the result cause an overflow.
Tests
works_u8 : 2u8 1u8 UINT8/ADD 3u8 EQUAL?.
empty_stack_u8 : [UINT8/ADD] TRY UNWRAP 0x04 EQUAL?.
empty_stack_u8_1 : [1u8 UINT8/ADD] TRY UNWRAP 0x04 EQUAL?.
works_u16 : 2u16 1u16 UINT16/ADD 3u16 EQUAL?.
empty_stack_u16 : [UINT16/ADD] TRY UNWRAP 0x04 EQUAL?.
empty_stack_u16_1 : [1u16 UINT16/ADD] TRY UNWRAP 0x04 EQUAL?.
works_u32 : 2u32 1u32 UINT32/ADD 3u32 EQUAL?.
empty_stack_u32 : [UINT32/ADD] TRY UNWRAP 0x04 EQUAL?.
empty_stack_u32_1 : [1u32 UINT32/ADD] TRY UNWRAP 0x04 EQUAL?.
works_u64 : 2u64 1u64 UINT64/ADD 3u64 EQUAL?.
empty_stack_u64 : [UINT64/ADD] TRY UNWRAP 0x04 EQUAL?.
empty_stack_u64_1 : [1u64 UINT64/ADD] TRY UNWRAP 0x04 EQUAL?.