From 54bc41ffaf21a086059c1b5fc9e00c5b25f5e3f1 Mon Sep 17 00:00:00 2001
From: don fong <dfong@dfong.com>
Date: Tue, 26 Jul 2011 12:54:42 -0700
Subject: compute pow() with shell only, in case we don't have bc, dc, perl

---
 test/functests/test_walkone.sh | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/test/functests/test_walkone.sh b/test/functests/test_walkone.sh
index 1902926..b27df9a 100755
--- a/test/functests/test_walkone.sh
+++ b/test/functests/test_walkone.sh
@@ -40,9 +40,21 @@ fakedate()
 	fakecmd "$1" date +$fmt
 }
 
+#
+# compute x**n.
+# use only the shell, in case we need to run on machines
+# without bc, dc, perl, etc.
+#
 pow()
 {
-	dc -e "$1 $2 ^ p"
+	typeset x="$1" n="$2"
+	typeset r=1
+	typeset i=0
+	while ((i < n)); do
+		((r = r*x))
+		((i++))
+	done
+	echo $r
 }
 
 # run a fakedate test with a given time t
-- 
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