From c4664b31e5231fb56cb36cbebcef50ee699fda07 Mon Sep 17 00:00:00 2001
From: Chariton Charitonidis <haritonch@yahoo.com>
Date: Fri, 15 Mar 2019 11:01:23 +0200
Subject: [PATCH] Added a comment to better demonstrate custom datatypes.

It is not obvious for a beginner (like me) to declare a new value of the temp datatype which can be either C (celsius) or F (fahrenheit). I think it would be better to demonstrate the declaration of such a datatype.
---
 standard-ml.html.markdown | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/standard-ml.html.markdown b/standard-ml.html.markdown
index b34f1c08..0ba42f39 100644
--- a/standard-ml.html.markdown
+++ b/standard-ml.html.markdown
@@ -272,6 +272,9 @@ fun evenly_positioned_elems (odd::even::xs) = even::evenly_positioned_elems xs
 datatype temp =
       C of real
     | F of real
+    
+(*  Declaring a new C temp value...
+    val t: temp = C 45.0  *)
 
 fun temp_to_f t =
     case t of