commit eac9eb462ed6f7fcfb791e7a08b4011fcca47829
author Irina Tirdea <irina.tirdea@intel.com> Sat Sep 08 09:28:30 2012 +0300
committer Elliott Hughes <enh@google.com> Thu Sep 27 11:38:57 2012 -0700
tree 3b436a25d9ff22616ca22919ff9026e4426a9243
parent e4030e0bfc427e755477bbea69afe60308a62d91

Add getdelim(3) and getline(3) to bionic

Some userspace programs (e.g. perf) need getline.

Changes:
() add getdelim.c, getline.c from NetBSD (http://netbsd.org/) under the
NetBSD Foundation's (TNF) license ("2 clause" Berkeley-style license).
() add stub for reentrant.h header that is needed by getdelim.c
() add tests for getdelim(3) and getline(3).
() update NOTICE file.

Change-Id: I22ed82dd5904b9d7a3695535c04f502be3c27c5d
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>

libc/include/sys/param.h

diff --git a/libc/include/sys/param.h b/libc/include/sys/param.h
index 3a815cb..0bfdc5d 100644
--- a/libc/include/sys/param.h
+++ b/libc/include/sys/param.h
@@ -37,4 +37,6 @@
 #define ALIGNBYTES  3
 #define ALIGN(p)    (((unsigned int)(p) + ALIGNBYTES) &~ ALIGNBYTES)
 
+#define powerof2(x) ((((x)-1)&(x))==0)
+
 #endif /* _SYS_PARAM_H_ */