include/lttng/stringify.h

   1 #ifndef __LINUX_STRINGIFY_H
   2 #define __LINUX_STRINGIFY_H
   3 /*
   4  * Copyright (C) 2009 Zhaolei <zhaolei@cn.fujitsu.com>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation;
   9  * version 2.1 of the License.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 /* Indirect stringification.  Doing two levels allows the parameter to be a
  22  * macro itself.  For example, compile with -DFOO=bar, __stringify(FOO)
  23  * converts to "bar".
  24  */
  25
  26 #define __stringify_1(x...)     #x
  27 #define __stringify(x...)       __stringify_1(x)
  28
  29 #endif  /* !__LINUX_STRINGIFY_H */