From 3e5637b0aad29d8a5e93ad4fdff4074f8dbc9409 Mon Sep 17 00:00:00 2001
From: Matthias Andreas Benkard <code@mail.matthias.benkard.de>
Date: Sun, 9 Dec 2012 12:09:26 +0100
Subject: Update test program.

---
 cells-test.cpp | 41 ++++++++++++++++++++++++-----------------
 1 file changed, 24 insertions(+), 17 deletions(-)

diff --git a/cells-test.cpp b/cells-test.cpp
index a88fe5b..539ee56 100644
--- a/cells-test.cpp
+++ b/cells-test.cpp
@@ -31,25 +31,32 @@ typedef formula_cell<unit>   ucell;
 
 
 int main(int argc, char** argv) {
-  fcell x0, x1, x2, y, z;
-  ucell a, b;
+  fcell x0, x1, x2, y;
+  ucell b;
 
-  with_transaction([&](){
-    x0.reset(10);
-    x1.reset([&](){ return *x0 + 5; });
-    x2.reset([&](){ return *x0 * 2; });
-    y.reset([&](){ return *x1 * *x2; });
-    z.reset([&](){ return *x0 * *y; });
-    a.reset([&]() -> unit { cout << "z is now " << *z << "." << endl; return unit(); });
-    b.reset([&]() -> unit { cout << "x2 is now " << *x2 << "." << endl; return unit(); });
-  });
-
-  x0.reset(15);
-  x0.reset(-20);
-  y.reset(-3);
-  x1.reset([&]() { return (double)*x0; });
-  y.reset([&]() { return *x1 + *x2; });
+  {
+    fcell z;
+    ucell a;
+    with_transaction([&](){
+      x0.reset(10);
+      x1.reset([&](){ return *x0 + 5; });
+      x2.reset([&](){ return *x0 * 2; });
+      y.reset([&](){ return *x1 * *x2; });
+      z.reset([&](){ return *x0 * *y; });
+      a.reset([&]() -> unit { cout << "z is now " << *z << "." << endl; return unit(); });
+      b.reset([&]() -> unit { cout << "x2 is now " << *x2 << "." << endl; return unit(); });
+    });
+  
+    x0.reset(15);
+    x0.reset(-20);
+    y.reset(-3);
+    x1.reset([&]() { return (double)*x0; });
+    y.reset([&]() { return *x1 + *x2; });
+  }
 
+  x0.reset(10);  //z and a are not active anymore, so only b will
+                 //produce output.
+  
   return EXIT_SUCCESS;
 }
 
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