stringify.h

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#ifndef __LINUX_STRINGIFY_H
#define __LINUX_STRINGIFY_H
 
/* 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)
 
#define FILE_LINE   __FILE__ ":" __stringify(__LINE__)
 
#endif  /* !__LINUX_STRINGIFY_H */