From bb08e42e70a20fc011abc3e4fbccb7d3680b98be Mon Sep 17 00:00:00 2001
From: simonmar <unknown>
Date: Wed, 15 Mar 2000 11:15:19 +0000
Subject: [PATCH] [project @ 2000-03-15 11:15:19 by simonmar] Use the slightly
 more standard non-standard module ST instead of the
 completely non-standard MutableArray.

---
 ghc/compiler/utils/Digraph.lhs |   11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/ghc/compiler/utils/Digraph.lhs b/ghc/compiler/utils/Digraph.lhs
index 3196e6e..7ac34b2 100644
--- a/ghc/compiler/utils/Digraph.lhs
+++ b/ghc/compiler/utils/Digraph.lhs
@@ -36,9 +36,8 @@ module Digraph(
 
 import Util	( sortLt )
 
--- GHC extensions
+-- Extensions
 import ST
-import MutableArray
 
 -- std interfaces
 import Maybe
@@ -225,16 +224,16 @@ draw (Node x ts) = grp this (space (length this)) (stLoop ts)
 %************************************************************************
 
 \begin{code}
-type Set s    = MutableArray s Vertex Bool
+type Set s    = STArray s Vertex Bool
 
 mkEmpty      :: Bounds -> ST s (Set s)
-mkEmpty bnds  = newArray bnds False
+mkEmpty bnds  = newSTArray bnds False
 
 contains     :: Set s -> Vertex -> ST s Bool
-contains m v  = readArray m v
+contains m v  = readSTArray m v
 
 include      :: Set s -> Vertex -> ST s ()
-include m v   = writeArray m v True
+include m v   = writeSTArray m v True
 \end{code}
 
 \begin{code}
-- 
1.7.10.4