From f02778f83c9a1dfaae895a52d3a49417a8f340ea Mon Sep 17 00:00:00 2001
From: Peter Stephenson <pws@users.sourceforge.net>
Date: Wed, 20 Jan 2010 17:17:45 +0000
Subject: 27611: cache parameter values in math eval so subscripts are eval'd
 once

---
 Test/C01arith.ztst | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'Test/C01arith.ztst')

diff --git a/Test/C01arith.ztst b/Test/C01arith.ztst
index 02612bd79..1f0d2d0f3 100644
--- a/Test/C01arith.ztst
+++ b/Test/C01arith.ztst
@@ -188,3 +188,25 @@
 >0xFF
 >FF
 
+  array=(1)
+  x=0
+  (( array[++x]++ ))
+  print $x
+  print $#array
+  print $array
+0:no double increment for subscript
+>1
+>1
+>2
+
+  # This is a bit naughty...  the value of array
+  # isn't well defined since there's no sequence point
+  # between the increments of x, however we just want
+  # to be sure that in this case, unlike the above,
+  # x does get incremented twice.
+  x=0
+  array=(1 2)
+  (( array[++x] = array[++x] + 1 ))
+  print $x
+0:double increment for repeated expression
+>2
-- 
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