Privatize headers

[ust.git] / include / ust / stringify.h

diff --git a/include/ust/stringify.h b/include/ust/stringify.h
new file mode 100644 (file)
index 0000000..b8dfd90
--- /dev/null
+++ b/include/ust/stringify.h
@@ -0,0 +1,29 @@
+#ifndef __LINUX_STRINGIFY_H
+#define __LINUX_STRINGIFY_H
+/*
+ * Copyright (C) 2009 Zhaolei <zhaolei@cn.fujitsu.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+/* Indirect stringification.  Doing two levels allows the parameter to be a
+ * macro itself.  For example, compile with -DFOO=bar, __stringify(FOO)
+ * converts to "bar".
+ */
+
+#define __stringify_1(x...)    #x
+#define __stringify(x...)      __stringify_1(x)
+
+#endif /* !__LINUX_STRINGIFY_H */