From 2eccbc105ac9272876e453217e7ed5dc0cac04f6 Mon Sep 17 00:00:00 2001
From: John Wiegley <johnw@newartisans.com>
Date: Sat, 7 Aug 2004 21:49:28 -0400
Subject: added walk.cc

---
 walk.cc | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 walk.cc

diff --git a/walk.cc b/walk.cc
new file mode 100644
index 00000000..5b923a86
--- /dev/null
+++ b/walk.cc
@@ -0,0 +1,31 @@
+#include "walk.h"
+
+namespace ledger {
+
+class sum_in_account
+{
+ public:
+  void operator()(transaction_t * xact) const {
+    xact->account->value += *xact;
+  }
+};
+
+void calc__accounts(account_t * account,
+		    item_predicate<transaction_t>& pred_functor,
+		    unsigned int flags)
+{
+  sum_in_account functor;
+
+  for (transactions_list::iterator i = account->transactions.begin();
+       i != account->transactions.end();
+       i++)
+    if (pred_functor(*i))
+      handle_transaction(*i, functor, flags);
+
+  for (accounts_map::iterator i = account->accounts.begin();
+       i != account->accounts.end();
+       i++)
+    calc__accounts((*i).second, pred_functor, flags);
+}
+
+} // namespace ledger
-- 
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