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Diffstat (limited to 'runtime/base/iteration_range.h')
-rw-r--r-- | runtime/base/iteration_range.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/runtime/base/iteration_range.h b/runtime/base/iteration_range.h new file mode 100644 index 0000000000..5a46376237 --- /dev/null +++ b/runtime/base/iteration_range.h @@ -0,0 +1,47 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef ART_RUNTIME_BASE_ITERATION_RANGE_H_ +#define ART_RUNTIME_BASE_ITERATION_RANGE_H_ + +namespace art { + +// Helper class that acts as a container for range-based loops, given an iteration +// range [first, last) defined by two iterators. +template <typename Iter> +class IterationRange { + public: + typedef Iter iterator; + typedef typename std::iterator_traits<Iter>::difference_type difference_type; + typedef typename std::iterator_traits<Iter>::value_type value_type; + typedef typename std::iterator_traits<Iter>::pointer pointer; + typedef typename std::iterator_traits<Iter>::reference reference; + + IterationRange(iterator first, iterator last) : first_(first), last_(last) { } + + iterator begin() const { return first_; } + iterator end() const { return last_; } + iterator cbegin() const { return first_; } + iterator cend() const { return last_; } + + private: + iterator first_; + iterator last_; +}; + +} // namespace art + +#endif // ART_RUNTIME_BASE_ITERATION_RANGE_H_ |