OCaml records

In OCaml, records are a way to group related values of different types together into a single composite value. Records are defined using the type keyword, with a name and a list of fields.

type point = {
  x : float;
  y : float;
}

To create a value of this record type, we use the syntax { field1 = value1; field2 = value2; ... }. For example:

let origin = {
  x = 0.0;
  y = 0.0;
}

We can access the fields of a record using the . operator. For example:

origin.x ;;
- : float = 0.