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-rw-r--r--src/include/util/algorithm.H18
1 files changed, 17 insertions, 1 deletions
diff --git a/src/include/util/algorithm.H b/src/include/util/algorithm.H
index 54baa029d..dac0f47c9 100644
--- a/src/include/util/algorithm.H
+++ b/src/include/util/algorithm.H
@@ -5,7 +5,9 @@
/* */
/* OpenPOWER HostBoot Project */
/* */
-/* COPYRIGHT International Business Machines Corp. 2012,2014 */
+/* Contributors Listed Below - COPYRIGHT 2012,2015 */
+/* [+] International Business Machines Corp. */
+/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
@@ -52,6 +54,20 @@ namespace Util
static const T value = (a > b) ? a : b;
};
+ /**
+ * @brief - utility function that determines if a given number is
+ * power of 2.
+ *
+ * @param[in] i_num - given number.
+ *
+ * @return bool - True if the number is a power of 2, False otherwise.
+ */
+ template <typename T>
+ bool isPow2(T i_num)
+ {
+ return (!(i_num & (i_num-1)));
+ }
+
};
};
#endif
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