Boost.Log merged to trunk.

[SVN r83860]

test/compile_fail/util_explicit_operator_bool_shift.cpp

@@ -0,0 +1,40 @@
+/*
+ *          Copyright Andrey Semashev 2007 - 2013.
+ * Distributed under the Boost Software License, Version 1.0.
+ *    (See accompanying file LICENSE_1_0.txt or copy at
+ *          http://www.boost.org/LICENSE_1_0.txt)
+ */
+/*!
+ * \file   util_explicit_operator_bool_shift.cpp
+ * \author Andrey Semashev
+ * \date   17.07.2010
+ *
+ * \brief  This test checks that explicit operator bool cannot be used in
+ *         an unintended context.
+ */
+
+#define BOOST_TEST_MODULE util_explicit_operator_bool_shift
+
+#include <boost/log/utility/explicit_operator_bool.hpp>
+
+namespace {
+
+    // A test object that has the operator of explicit conversion to bool
+    struct checkable
+    {
+        BOOST_LOG_EXPLICIT_OPERATOR_BOOL()
+        bool operator! () const
+        {
+            return false;
+        }
+    };
+
+} // namespace
+
+int main(int, char*[])
+{
+    checkable val;
+    val << 2;
+
+    return 0;
+}