Basics of OCaml

Conversion of old BASIC programs to OCaml in order to learn the basics of this language.

Tags:

Diamond

(*
Diamond

Original version in BASIC:
    Example included in Vintage BASIC 1.0.3.
    http://www.vintage-basic.net

This version in OCaml:
    Copyright (c) 2023, Marcos Cruz (programandala.net)
    SPDX-License-Identifier: Fair

Written in 2023-10-19/20.
    
Last modified 20231103T2323+0100.
*)

let lines = 17;;

let i = ref 0 in
while !i <= lines / 2 + 1 do
    let j = ref 1 in
    while !j <= (lines + 1) / 2 - !i + 1 do
        print_string " ";
        j := !j + 1
    done;
    let j = ref 1 in
    while !j <= !i * 2 - 1 do
        print_string "*";
        j := !j + 1
    done;
    print_newline();
    i := !i + 1
done;;

let i = ref 1 in
while !i <= lines / 2 do
    let j = ref 1 in
    while !j <= !i + 1 do
        print_string " ";
        j := !j + 1
    done;
    let j = ref 1 in
    while !j <= ((lines + 1) / 2 - !i) * 2 - 1 do
        print_string "*";
        j := !j + 1
    done;
    print_newline();
    i := !i + 1
done;;

All versions of Diamond

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OCaml

Basics of OCaml

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Diamond

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