Initial release.

[SVN r446]

optional_test.cpp

@@ -0,0 +1,58 @@
+//-----------------------------------------------------------------------------
+// boost libs/optional/optional_test.cpp source file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2002
+// Eric Friedman
+//
+// Permission to use, copy, modify, distribute and sell this software
+// and its documentation for any purpose is hereby granted without fee, 
+// provided that the above copyright notice appears in all copies and 
+// that both the copyright notice and this permission notice appear in 
+// supporting documentation. No representations are made about the 
+// suitability of this software for any purpose. It is provided "as is" 
+// without express or implied warranty.
+
+#include "boost/optional.hpp"
+
+#define BOOST_INCLUDE_MAIN
+#include <boost/test/test_tools.hpp>
+#include "boost/cstdlib.hpp"
+
+boost::optional<double> f(const boost::optional<bool>& return_flag, int arg)
+{
+    if (!return_flag.empty() && return_flag.get() == true)
+        return double(arg);
+
+    return boost::optional<double>();
+}
+
+//////////////////////////////////////////////////////////////////////////
+// function test_main
+//
+int test_main( int, char *[] )
+{
+    boost::optional<double> result;
+    BOOST_TEST((
+          result.empty()
+        ));
+    
+    result = f(true, 3);
+    BOOST_TEST((
+          !result.empty() && result.get() == 3
+        ));
+
+    result = f(false, 3);
+    BOOST_TEST((
+          result.empty()
+        ));
+
+    boost::optional<bool> empty_flag;
+    result = f(empty_flag, 3);
+    BOOST_TEST((
+          result.empty()
+        ));
+
+    return boost::exit_success;
+}