path: root/cpp/017and-record

// Support for records.
:(before "End Mu Types")
// We'll use this record as a running example, with two fields: an integer and
// a boolean.
int integer_boolean = Type_number["integer-boolean"] = Next_type_number++;
Type[integer_boolean].size = 2;
Type[integer_boolean].is_record = true;
vector<type_number> i;
i.push_back(integer);
Type[integer_boolean].elements.push_back(i);
vector<type_number> b;
b.push_back(boolean);
Type[integer_boolean].elements.push_back(b);

// Records can be copied around with a single instruction just like integers,
// no matter how large they are.
:(scenario copy_multiple_locations)
recipe main [
  1:integer <- copy 34:literal
  2:boolean <- copy 0:literal
  3:integer-boolean <- copy 1:integer-boolean
]
+run: ingredient 0 is 1
+mem: location 1 is 34
+mem: location 2 is 0
+mem: storing in location 3
+mem: storing in location 4