1 files changed, 34 insertions, 0 deletions
diff --git a/src/include/ostream_utils.hpp b/src/include/ostream_utils.hpp
new file mode 100644
index 0000000..634b1f5
--- /dev/null
+++ b/src/include/ostream_utils.hpp
@@ -0,0 +1,34 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include <ostream>
+#include <string_view>
+
+namespace orcus { namespace detail {
+
+class ostream_format_guard
+{
+    std::ostream& m_os;
+    std::ios_base::fmtflags m_flags;
+public:
+    ostream_format_guard(std::ostream& os) :
+        m_os(os)
+    {
+        m_flags = m_os.flags();
+    }
+
+    ~ostream_format_guard()
+    {
+        m_os.setf(m_flags);
+    }
+};
+
+}}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */