X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=blobdiff_plain;f=code%2Fcalculator%2Fcalc4.ml;h=1343827d69844c6bd5386af8f76ac2dd7dc8d62b;hp=27687d57b9be0a1fc986e5266eecbcd5d10bc4d4;hb=12ba49b7826c64a85032e1640db29d4c947347f9;hpb=ee6e8e390ac5ffa57dc95531939222efda5d37ff

diff --git a/code/calculator/calc4.ml b/code/calculator/calc4.ml
index 27687d57..1343827d 100644
--- a/code/calculator/calc4.ml
+++ b/code/calculator/calc4.ml
@@ -1,4 +1,4 @@
-(* calc3.ml, enhanced with Mutable Cells *)
+(* calc4.ml: calc3.ml enhanced with Mutable Cells *)
 
     type term =
       Intconstant of int
@@ -105,12 +105,12 @@
         (* we don't handle cases where t1 doesn't evaluate to a Mutcell *)
         let (Mutcell index1, s') = eval t1 g s
         (* note that s' may be different from s, if t1 itself contained any mutation operations *)
-        in let (new_value, s'') = eval t2 g s'
-        (* now we create a list which is just like s'' except it has new_value in index1 *)
+        in let (value2, s'') = eval t2 g s'
+        (* now we create a list which is just like s'' except it has value2 in index1 *)
         in let rec replace_nth lst m =
             match lst with
             | [] -> failwith "list too short"
-            | x::xs when m = 0 -> new_value :: xs
+            | x::xs when m = 0 -> value2 :: xs
             | x::xs -> x :: replace_nth xs (m - 1)
         in let s''' = replace_nth s'' index1
         (* we'll arbitrarily return Int 42 as the expressed_value of a Setref operation *)