Two people considered identical if they have exactly the same information (same name, sex, birth and death).
I must declare a function pers: person * person -> bool that determines whether two values of type person enter the same person.
I'm stucked, anyone ? tnx.
Alright, I know your assignment and this is what I've done:
datatype person = Person of navn * koen * aarstal * aarstal
fun pers (Person(a,b,c,d) , Person (e,f,g,h) = if (a,b,c,d) = (e,f,g,h)
then true else false;
Basically, I take the name, sex, year of birth and death and check them against each other. If everything is the same it returns true, if not false (navn, koen and aarstal are all previously defined datatypes).
If anyone has a smarter solution to this, please let me know!