1 files changed, 56 insertions, 0 deletions
diff --git a/src/balpair.cc b/src/balpair.cc
new file mode 100644
index 00000000..e0b2e0af
--- /dev/null
+++ b/src/balpair.cc
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2003-2008, John Wiegley.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of New Artisans LLC nor the names of its
+ *   contributors may be used to endorse or promote products derived from
+ *   this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "balpair.h"
+
+namespace ledger {
+
+optional<balance_pair_t>
+balance_pair_t::value(const optional<datetime_t>&   moment,
+		      const optional<commodity_t&>& in_terms_of) const
+{
+  optional<balance_t> temp = quantity().value(moment, in_terms_of);
+  optional<balance_t> cost_temp;
+  if (cost)
+    cost_temp = cost->value(moment, in_terms_of);
+
+  if (temp) {
+    if (cost_temp)
+      return balance_pair_t(*temp, *cost_temp);
+    else if (cost)
+      return balance_pair_t(*temp, *cost);
+    else
+      return balance_pair_t(*temp);
+  }
+  return none;
+}
+
+} // namespace ledger