diff options
Diffstat (limited to 'contrib/src/boost/pending/lowest_bit.hpp')
-rw-r--r-- | contrib/src/boost/pending/lowest_bit.hpp | 78 |
1 files changed, 39 insertions, 39 deletions
diff --git a/contrib/src/boost/pending/lowest_bit.hpp b/contrib/src/boost/pending/lowest_bit.hpp index dd6e6e8..6e4041b 100644 --- a/contrib/src/boost/pending/lowest_bit.hpp +++ b/contrib/src/boost/pending/lowest_bit.hpp @@ -1,39 +1,39 @@ -// ----------------------------------------------------------- -// lowest_bit.hpp -// -// Position of the lowest bit 'on' -// -// Copyright (c) 2003-2004, 2008 Gennaro Prota -// -// Distributed under the Boost Software License, Version 1.0. -// (See accompanying file LICENSE_1_0.txt or copy at -// http://www.boost.org/LICENSE_1_0.txt) -// -// ----------------------------------------------------------- - -#ifndef BOOST_LOWEST_BIT_HPP_GP_20030301 -#define BOOST_LOWEST_BIT_HPP_GP_20030301 - -#include <assert.h> -#include "boost/pending/integer_log2.hpp" - - -namespace boost { - - template <typename T> - int lowest_bit(T x) { - - assert(x >= 1); // PRE - - // clear all bits on except the rightmost one, - // then calculate the logarithm base 2 - // - return boost::integer_log2<T>( x - ( x & (x-1) ) ); - - } - - -} - - -#endif // include guard +// -----------------------------------------------------------
+// lowest_bit.hpp
+//
+// Position of the lowest bit 'on'
+//
+// Copyright (c) 2003-2004, 2008 Gennaro Prota
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+// -----------------------------------------------------------
+
+#ifndef BOOST_LOWEST_BIT_HPP_GP_20030301
+#define BOOST_LOWEST_BIT_HPP_GP_20030301
+
+#include <assert.h>
+#include "boost/pending/integer_log2.hpp"
+
+
+namespace boost {
+
+ template <typename T>
+ int lowest_bit(T x) {
+
+ assert(x >= 1); // PRE
+
+ // clear all bits on except the rightmost one,
+ // then calculate the logarithm base 2
+ //
+ return boost::integer_log2<T>( x - ( x & (x-1) ) );
+
+ }
+
+
+}
+
+
+#endif // include guard
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