整理

2026-03-23 20:54:41 +08:00
commit e13b3650e9
4596 changed files with 1015768 additions and 0 deletions
--- a/include/boost/range/numeric.hpp
+++ b/include/boost/range/numeric.hpp
@@ -0,0 +1,188 @@
+// Copyright 2009-2014 Neil Groves.
+// 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)
+//
+// Copyright 2006 Thorsten Ottosen.
+// 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)
+//
+// Copyright 2004 Eric Niebler.
+// 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)
+//
+//   Contains range-based versions of the numeric std algorithms
+//
+#if defined(_MSC_VER)
+    #pragma once
+#endif
+
+#ifndef BOOST_RANGE_NUMERIC_HPP
+#define BOOST_RANGE_NUMERIC_HPP
+
+#include <boost/config.hpp>
+#include <boost/assert.hpp>
+#include <boost/range/begin.hpp>
+#include <boost/range/end.hpp>
+#include <boost/range/category.hpp>
+#include <boost/range/concepts.hpp>
+#include <boost/range/distance.hpp>
+#include <boost/range/size.hpp>
+#include <numeric>
+
+
+namespace boost
+{
+    template<class SinglePassRange, class Value>
+    inline Value accumulate(const SinglePassRange& rng, Value init)
+    {
+        BOOST_RANGE_CONCEPT_ASSERT((
+            SinglePassRangeConcept<const SinglePassRange>));
+
+        return std::accumulate(boost::begin(rng), boost::end(rng), init);
+    }
+
+    template<class SinglePassRange, class Value, class BinaryOperation>
+    inline Value accumulate(const SinglePassRange& rng, Value init,
+                            BinaryOperation op)
+    {
+        BOOST_RANGE_CONCEPT_ASSERT((
+                SinglePassRangeConcept<const SinglePassRange> ));
+
+        return std::accumulate(boost::begin(rng), boost::end(rng), init, op);
+    }
+
+    namespace range_detail
+    {
+        template<class SinglePassRange1, class SinglePassRange2>
+        inline bool inner_product_precondition(
+            const SinglePassRange1&,
+            const SinglePassRange2&,
+            std::input_iterator_tag,
+            std::input_iterator_tag)
+        {
+            return true;
+        }
+
+        template<class SinglePassRange1, class SinglePassRange2>
+        inline bool inner_product_precondition(
+            const SinglePassRange1& rng1,
+            const SinglePassRange2& rng2,
+            std::forward_iterator_tag,
+            std::forward_iterator_tag)
+        {
+            return boost::size(rng2) >= boost::size(rng1);
+        }
+
+    } // namespace range_detail
+
+    template<
+        class SinglePassRange1,
+        class SinglePassRange2,
+        class Value
+    >
+    inline Value inner_product(
+        const SinglePassRange1& rng1,
+        const SinglePassRange2& rng2,
+        Value                   init)
+    {
+        BOOST_RANGE_CONCEPT_ASSERT((
+            SinglePassRangeConcept<const SinglePassRange1>));
+
+        BOOST_RANGE_CONCEPT_ASSERT((
+            SinglePassRangeConcept<const SinglePassRange2>));
+
+        BOOST_ASSERT(
+            range_detail::inner_product_precondition(
+                    rng1, rng2,
+                    typename range_category<const SinglePassRange1>::type(),
+                    typename range_category<const SinglePassRange2>::type()));
+
+        return std::inner_product(
+            boost::begin(rng1), boost::end(rng1),
+            boost::begin(rng2), init);
+    }
+
+    template<
+        class SinglePassRange1,
+        class SinglePassRange2,
+        class Value,
+        class BinaryOperation1,
+        class BinaryOperation2
+    >
+    inline Value inner_product(
+        const SinglePassRange1& rng1,
+        const SinglePassRange2& rng2,
+        Value                   init,
+        BinaryOperation1        op1,
+        BinaryOperation2        op2)
+    {
+        BOOST_RANGE_CONCEPT_ASSERT((
+                SinglePassRangeConcept<const SinglePassRange1>));
+
+        BOOST_RANGE_CONCEPT_ASSERT((
+                SinglePassRangeConcept<const SinglePassRange2>));
+
+        BOOST_ASSERT(
+            range_detail::inner_product_precondition(
+                rng1, rng2,
+                typename range_category<const SinglePassRange1>::type(),
+                typename range_category<const SinglePassRange2>::type()));
+
+        return std::inner_product(
+            boost::begin(rng1), boost::end(rng1),
+            boost::begin(rng2), init, op1, op2);
+    }
+
+    template<class SinglePassRange, class OutputIterator>
+    inline OutputIterator partial_sum(const SinglePassRange& rng,
+                                      OutputIterator result)
+    {
+        BOOST_RANGE_CONCEPT_ASSERT((
+                SinglePassRangeConcept<const SinglePassRange>));
+
+        return std::partial_sum(boost::begin(rng), boost::end(rng), result);
+    }
+
+    template<class SinglePassRange, class OutputIterator, class BinaryOperation>
+    inline OutputIterator partial_sum(
+        const SinglePassRange&  rng,
+        OutputIterator          result,
+        BinaryOperation         op)
+    {
+        BOOST_RANGE_CONCEPT_ASSERT((
+                SinglePassRangeConcept<const SinglePassRange>));
+
+        return std::partial_sum(boost::begin(rng), boost::end(rng), result, op);
+    }
+
+    template<class SinglePassRange, class OutputIterator>
+    inline OutputIterator adjacent_difference(
+        const SinglePassRange&  rng,
+        OutputIterator          result)
+    {
+        BOOST_RANGE_CONCEPT_ASSERT((
+                SinglePassRangeConcept<const SinglePassRange>));
+
+        return std::adjacent_difference(boost::begin(rng), boost::end(rng),
+                                        result);
+    }
+
+    template<class SinglePassRange, class OutputIterator, class BinaryOperation>
+    inline OutputIterator adjacent_difference(
+        const SinglePassRange&  rng,
+        OutputIterator          result,
+        BinaryOperation         op)
+    {
+        BOOST_RANGE_CONCEPT_ASSERT((
+                SinglePassRangeConcept<const SinglePassRange>));
+
+        return std::adjacent_difference(boost::begin(rng), boost::end(rng),
+                                        result, op);
+    }
+
+} // namespace boost
+
+#endif