From c30a6232df03e1efbd9f3b226777b07e087a1122 Mon Sep 17 00:00:00 2001 From: Allan Sandfeld Jensen Date: Mon, 12 Oct 2020 14:27:29 +0200 Subject: BASELINE: Update Chromium to 85.0.4183.140 Change-Id: Iaa42f4680837c57725b1344f108c0196741f6057 Reviewed-by: Allan Sandfeld Jensen --- chromium/base/util/ranges/iterator.h | 40 ++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 chromium/base/util/ranges/iterator.h (limited to 'chromium/base/util/ranges/iterator.h') diff --git a/chromium/base/util/ranges/iterator.h b/chromium/base/util/ranges/iterator.h new file mode 100644 index 00000000000..daaedbc285b --- /dev/null +++ b/chromium/base/util/ranges/iterator.h @@ -0,0 +1,40 @@ +// Copyright 2020 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef BASE_UTIL_RANGES_ITERATOR_H_ +#define BASE_UTIL_RANGES_ITERATOR_H_ + +#include + +namespace util { +namespace ranges { + +// Simplified implementation of C++20's std::ranges::begin. +// As opposed to std::ranges::begin, this implementation does not prefer a +// member begin() over a free standing begin(), does not check whether begin() +// returns an iterator, does not inhibit ADL and is not constexpr. +// +// Reference: https://wg21.link/range.access.begin +template +decltype(auto) begin(Range&& range) { + using std::begin; + return begin(std::forward(range)); +} + +// Simplified implementation of C++20's std::ranges::end. +// As opposed to std::ranges::end, this implementation does not prefer a +// member end() over a free standing end(), does not check whether end() +// returns an iterator, does not inhibit ADL and is not constexpr. +// +// Reference: - https://wg21.link/range.access.end +template +decltype(auto) end(Range&& range) { + using std::end; + return end(std::forward(range)); +} + +} // namespace ranges +} // namespace util + +#endif // BASE_UTIL_RANGES_ITERATOR_H_ -- cgit v1.2.1