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-rw-r--r--dom/quota/RemoveParen.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/dom/quota/RemoveParen.h b/dom/quota/RemoveParen.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#ifndef DOM_QUOTA_REMOVEPAREN_H_
+#define DOM_QUOTA_REMOVEPAREN_H_
+
+// See
+// https://stackoverflow.com/questions/24481810/how-to-remove-the-enclosing-parentheses-with-macro
+#define MOZ_REMOVE_PAREN(X) MOZ_REMOVE_PAREN_HELPER2(MOZ_REMOVE_PAREN_HELPER X)
+#define MOZ_REMOVE_PAREN_HELPER(...) MOZ_REMOVE_PAREN_HELPER __VA_ARGS__
+#define MOZ_REMOVE_PAREN_HELPER2(...) MOZ_REMOVE_PAREN_HELPER3(__VA_ARGS__)
+#define MOZ_REMOVE_PAREN_HELPER3(...) MOZ_REMOVE_PAREN_HELPER4_##__VA_ARGS__
+#define MOZ_REMOVE_PAREN_HELPER4_MOZ_REMOVE_PAREN_HELPER
+
+#endif // DOM_QUOTA_REMOVEPAREN_H_