RosettaCodeData/Task/Set/Aime/set.aime

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record
union(record a, record b)
{
record c;
r_copy(c, a);
r_wcall(b, r_add, 1, 2, c);
return c;
}
record
intersection(record a, record b)
{
record c;
text s;
for (s in a) {
if (r_key(b, s)) {
c[s] = 0;
}
}
return c;
}
record
difference(record a, record b)
{
record c;
r_copy(c, a);
r_vcall(b, r_resign, 1, c);
return c;
}
integer
subset(record a, record b)
{
integer e;
text s;
e = 1;
for (s in a) {
if (!r_key(b, s)) {
e = 0;
break;
}
}
return e;
}
integer
equal(record a, record b)
{
return subset(a, b) && subset(b, a);
}
integer
main(void)
{
record a, b;
text s;
r_fit(a, "apple", 0, "cherry", 0, "grape", 0);
r_fit(b, "banana", 0, "cherry", 0, "date", 0);
s = "banana";
o_(" ", s, " is ", r_key(a, s) ? "" : "not ", "an element of A\n");
o_(" ", s, " is ", r_key(b, s) ? "" : "not ", "an element of B\n");
r_vcall(union(a, b), o_, 1, " ");
o_newline();
r_vcall(intersection(a, b), o_, 1, " ");
o_newline();
r_vcall(difference(a, b), o_, 1, " ");
o_newline();
o_(" ", subset(a, b) ? "yes" : "no", "\n");
o_(" ", equal(a, b) ? "yes" : "no", "\n");
return 0;
}