New Fetch

ocaml/hello-world/.merlin

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+PKG findlib
+PKG core
+PKG ounit
+S *
+B *

ocaml/hello-world/Makefile

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+test: test.native
+	@./test.native
+
+test.native: *.ml *.ml
+	@corebuild -r -quiet -pkg oUnit test.native
+
+clean:
+	rm -rf _build
+	rm -f test.native
+
+.PHONY: clean

ocaml/hello-world/README.md

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+# Hello World
+
+The classical introductory exercise. Just say "Hello, World!".
+
+["Hello, World!"](http://en.wikipedia.org/wiki/%22Hello,_world!%22_program) is
+the traditional first program for beginning programming in a new language
+or environment.
+
+The objectives are simple:
+
+- Write a function that returns the string "Hello, World!".
+- Run the test suite and make sure that it succeeds.
+- Submit your solution and check it at the website.
+
+If everything goes well, you will be ready to fetch your first real exercise.
+
+
+## Getting Started
+For installation and learning resources, refer to the
+[exercism help page](http://exercism.io/languages/ocaml).
+
+## Installation
+To work on the exercises, you will need `Opam` and `Core`. Consult [opam](https://opam.ocaml.org) website for instructions on how to install `opam` for your OS. Once `opam` is installed open a terminal window and run the following command to install core:
+
+```bash
+opam install core
+```
+
+To run the tests you will need `OUnit`. Install it using `opam`:
+
+```bash
+opam install ounit
+```
+
+## Running Tests
+A Makefile is provided with a default target to compile your solution and run the tests. At the command line, type:
+
+```bash
+make
+```
+
+## Interactive Shell
+`utop` is a command line program which allows you to run Ocaml code interactively. The easiest way to install it is via opam:
+```bash
+opam install utop
+```
+Consult [utop](https://github.com/diml/utop/blob/master/README.md) for more detail.
+
+## Feedback, Issues, Pull Requests
+The [exercism/ocaml](https://github.com/exercism/ocaml) repository on
+GitHub is the home for all of the Ocaml exercises.
+
+If you have feedback about an exercise, or want to help implementing a new
+one, head over there and create an issue.  We'll do our best to help you!
+
+## Source
+
+This is an exercise to introduce users to using Exercism [http://en.wikipedia.org/wiki/%22Hello,_world!%22_program](http://en.wikipedia.org/wiki/%22Hello,_world!%22_program)
+
+## Submitting Incomplete Solutions
+It's possible to submit an incomplete solution so you can see how others have completed the exercise.

ocaml/hello-world/hello_world.ml

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+let hello = "Change me"

ocaml/hello-world/hello_world.mli

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+(*
+   Returns "Hello, World!"
+*)
+val hello: string

ocaml/hello-world/test.ml

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+(* Test/exercise version: "1.0.0" *)
+
+open Core
+open OUnit2
+open Hello_world
+
+let ae exp got _test_ctxt = assert_equal ~printer:String.to_string exp got
+
+let tests = [
+     "Say Hi!" >:: ae "Hello, World!" hello;
+]
+
+let () =
+  run_test_tt_main ("Hello World tests" >::: tests)