summaryrefslogtreecommitdiff
path: root/runtime/base/iteration_range.h
diff options
context:
space:
mode:
Diffstat (limited to 'runtime/base/iteration_range.h')
-rw-r--r--runtime/base/iteration_range.h47
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_