sled/3party/cpplinq/linq_skip.hpp
2024-03-14 20:50:17 +08:00

38 lines
821 B
C++

// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
#if !defined(CPPLINQ_LINQ_SKIP_HPP)
#define CPPLINQ_LINQ_SKIP_HPP
#pragma once
#include <cstddef>
namespace cpplinq
{
template <class Collection>
struct linq_skip
{
public:
typedef typename Collection::cursor cursor;
linq_skip(const Collection& c, std::size_t n) : c(c), n(n) {}
cursor get_cursor() const {
std::size_t rem = n;
auto cur = c.get_cursor();
while(rem-- && !cur.empty()) {
cur.inc();
}
cur.forget();
return cur;
}
private:
Collection c;
std::size_t n;
};
}
#endif // !defined(CPPLINQ_LINQ_SKIP_HPP)