include/c: add BIT()

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/include/c.h b/include/c.h
index 3db3ab2fc01a1e3f8766feba0fd7f88343128003..d87521be0c9592a735322d30a92326efdf064469 100644 (file)
--- a/include/c.h
+++ b/include/c.h
@@ -37,6 +37,8 @@
 # define NAME_MAX PATH_MAX
 #endif
 
+#define BIT(n)                 (1 << (n))
+
 /*
  * __GNUC_PREREQ is deprecated in favour of __has_attribute() and
  * __has_feature(). The __has macros are supported by clang and gcc>=5.