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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /security/sandbox/chromium/base/containers/adapters.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'security/sandbox/chromium/base/containers/adapters.h')
-rw-r--r-- | security/sandbox/chromium/base/containers/adapters.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/security/sandbox/chromium/base/containers/adapters.h b/security/sandbox/chromium/base/containers/adapters.h new file mode 100644 index 0000000000..ec33481752 --- /dev/null +++ b/security/sandbox/chromium/base/containers/adapters.h @@ -0,0 +1,55 @@ +// Copyright 2014 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_CONTAINERS_ADAPTERS_H_ +#define BASE_CONTAINERS_ADAPTERS_H_ + +#include <stddef.h> + +#include <iterator> +#include <utility> + +#include "base/macros.h" + +namespace base { + +namespace internal { + +// Internal adapter class for implementing base::Reversed. +template <typename T> +class ReversedAdapter { + public: + using Iterator = decltype(std::rbegin(std::declval<T&>())); + + explicit ReversedAdapter(T& t) : t_(t) {} + ReversedAdapter(const ReversedAdapter& ra) : t_(ra.t_) {} + + Iterator begin() const { return std::rbegin(t_); } + Iterator end() const { return std::rend(t_); } + + private: + T& t_; + + DISALLOW_ASSIGN(ReversedAdapter); +}; + +} // namespace internal + +// Reversed returns a container adapter usable in a range-based "for" statement +// for iterating a reversible container in reverse order. +// +// Example: +// +// std::vector<int> v = ...; +// for (int i : base::Reversed(v)) { +// // iterates through v from back to front +// } +template <typename T> +internal::ReversedAdapter<T> Reversed(T& t) { + return internal::ReversedAdapter<T>(t); +} + +} // namespace base + +#endif // BASE_CONTAINERS_ADAPTERS_H_ |