NOT

Negates a boolean value.

Input stack: a

Output stack: c

NOT will push 1 if a is 0 and 0 if a is 1.

PumpkinDB> 0x01 NOT
0
PumpkinDB> 0x00 NOT
1

Allocation

None

InvalidValue error if the value being negated is not a boolean.

EmptyStack error if there are less than one item on the stack

works : 1 NOT 0 EQUAL?.
works_1 : 0 NOT 1 EQUAL?.
invalid_value : [5 NOT] TRY UNWRAP 0x03 EQUAL?.
empty_stack : [NOT] TRY UNWRAP 0x04 EQUAL?.