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-rw-r--r--Ix/CPP/src/cpplinq/linq_take.hpp98
1 files changed, 0 insertions, 98 deletions
diff --git a/Ix/CPP/src/cpplinq/linq_take.hpp b/Ix/CPP/src/cpplinq/linq_take.hpp
deleted file mode 100644
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--- a/Ix/CPP/src/cpplinq/linq_take.hpp
+++ /dev/null
@@ -1,98 +0,0 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
-
-#if !defined(CPPLINQ_LINQ_TAKE_HPP)
-#define CPPLINQ_LINQ_TAKE_HPP
-#pragma once
-
-#include <cstddef>
-
-namespace cpplinq
-{
- template <class InnerCursor>
- struct linq_take_cursor
- {
- typedef typename InnerCursor::element_type element_type;
- typedef typename InnerCursor::reference_type reference_type;
- typedef typename InnerCursor::cursor_category cursor_category;
-
- linq_take_cursor(const InnerCursor& cur, std::size_t rem) : cur(cur), rem(rem) {}
-
- void forget() { cur.forget(); }
- bool empty() const { return cur.empty() || rem == 0; }
- void inc() { cur.inc(); --rem; }
- reference_type get() const { return cur.get(); }
-
- bool atbegin() const { return cur.atbegin(); }
- void dec() { cur.dec(); --rem; }
-
- void skip(std::size_t n) { cur.skip(n); rem -= n; }
- std::size_t position() const { return cur.position(); }
- std::size_t size() const { return cur.size(); }
-
- private:
- InnerCursor cur;
- std::size_t rem;
- };
-
- namespace detail {
- template <class Collection>
- linq_take_cursor<typename Collection::cursor>
- take_get_cursor_(
- const Collection& c,
- std::size_t n,
- onepass_cursor_tag
- )
- {
- return linq_take_cursor<typename Collection::cursor>(c.get_cursor(), n);
- }
-
- template <class Collection>
- typename Collection::cursor
- take_get_cursor_(
- const Collection& c,
- std::size_t n,
- random_access_cursor_tag
- )
- {
- auto cur = c.get_cursor();
- if (cur.size() > n) {
- cur.truncate(n);
- }
- return cur;
- }
- }
-
- template <class Collection>
- struct linq_take
- {
- typedef typename std::conditional<
- util::less_or_equal_cursor_category<
- random_access_cursor_tag,
- typename Collection::cursor::cursor_category>::value,
- typename Collection::cursor,
- linq_take_cursor<typename Collection::cursor>>::type
- cursor;
-
- linq_take(const Collection& c, std::size_t n) : c(c), n(n) {}
-
- cursor get_cursor() const {
- return detail::take_get_cursor_(c, n, typename Collection::cursor::cursor_category());
- }
-
- Collection c;
- std::size_t n;
- };
-
- template <class Collection>
- auto get_cursor(
- const linq_take<Collection>& take
- )
- -> decltype(get_cursor_(take, typename Collection::cursor::cursor_category()))
- {
- return get_cursor_(take, typename Collection::cursor::cursor_category());
- }
-
-
-}
-#endif // !defined(CPPLINQ_LINQ_TAKE_HPP)
-