3 files changed, 63 insertions, 1 deletions
diff --git a/odb/tracer/exceptions.cxx b/odb/tracer/exceptions.cxx
new file mode 100644
index 0000000..14977cc
--- /dev/null
+++ b/odb/tracer/exceptions.cxx
@@ -0,0 +1,31 @@
+// file      : odb/tracer/exceptions.cxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2010 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#include <odb/tracer/exceptions.hxx>
+
+using namespace std;
+
+namespace odb
+{
+  namespace tracer
+  {
+    database_exception::
+    ~database_exception () throw ()
+    {
+    }
+
+    database_exception::
+    database_exception (const string& what)
+        : what_ (what)
+    {
+    }
+
+    char const* database_exception::
+    what () const throw ()
+    {
+      return what_.c_str ();
+    }
+  }
+}
diff --git a/odb/tracer/exceptions.hxx b/odb/tracer/exceptions.hxx
new file mode 100644
index 0000000..7a1dc9f
--- /dev/null
+++ b/odb/tracer/exceptions.hxx
@@ -0,0 +1,31 @@
+// file      : odb/tracer/exceptions.hxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2010 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_TRACER_EXCEPTIONS_HXX
+#define ODB_TRACER_EXCEPTIONS_HXX
+
+#include <string>
+
+#include <odb/exceptions.hxx>
+
+namespace odb
+{
+  namespace tracer
+  {
+    struct database_exception: odb::database_exception
+    {
+      database_exception (const std::string&);
+      ~database_exception () throw ();
+
+      virtual char const*
+      what () const throw ();
+
+    private:
+      std::string what_;
+    };
+  }
+}
+
+#endif // ODB_TRACER_EXCEPTIONS_HXX
diff --git a/odb/tracer/makefile b/odb/tracer/makefile
index aacde61..1ab1487 100644
--- a/odb/tracer/makefile
+++ b/odb/tracer/makefile
@@ -5,7 +5,7 @@
 
 include $(dir $(lastword $(MAKEFILE_LIST)))../../build/bootstrap.make
 
-cxx_tun   := database.cxx transaction.cxx transaction-impl.cxx
+cxx_tun   := exceptions.cxx database.cxx transaction.cxx transaction-impl.cxx
 cxx_obj   := $(addprefix $(out_base)/,$(cxx_tun:.cxx=.o))
 cxx_od    := $(cxx_obj:.o=.o.d)