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 6e4041b..dd6e6e8 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 |