Move casts.h and stl_util.h into base/.
Change-Id: Idb3bfa5cec3d146e488031d91265737cde2b4cf4
diff --git a/src/base/stl_util.h b/src/base/stl_util.h
new file mode 100644
index 0000000..eb8be42
--- /dev/null
+++ b/src/base/stl_util.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2011 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_SRC_BASE_STL_UTIL_H_
+#define ART_SRC_BASE_STL_UTIL_H_
+
+#include <algorithm>
+#include <sstream>
+
+namespace art {
+
+// Sort and remove duplicates of an STL vector or deque.
+template<class T>
+void STLSortAndRemoveDuplicates(T* v) {
+ std::sort(v->begin(), v->end());
+ v->erase(std::unique(v->begin(), v->end()), v->end());
+}
+
+// STLDeleteContainerPointers()
+// For a range within a container of pointers, calls delete
+// (non-array version) on these pointers.
+// NOTE: for these three functions, we could just implement a DeleteObject
+// functor and then call for_each() on the range and functor, but this
+// requires us to pull in all of algorithm.h, which seems expensive.
+// For hash_[multi]set, it is important that this deletes behind the iterator
+// because the hash_set may call the hash function on the iterator when it is
+// advanced, which could result in the hash function trying to deference a
+// stale pointer.
+template <class ForwardIterator>
+void STLDeleteContainerPointers(ForwardIterator begin,
+ ForwardIterator end) {
+ while (begin != end) {
+ ForwardIterator temp = begin;
+ ++begin;
+ delete *temp;
+ }
+}
+
+// STLDeleteElements() deletes all the elements in an STL container and clears
+// the container. This function is suitable for use with a vector, set,
+// hash_set, or any other STL container which defines sensible begin(), end(),
+// and clear() methods.
+//
+// If container is NULL, this function is a no-op.
+//
+// As an alternative to calling STLDeleteElements() directly, consider
+// ElementDeleter (defined below), which ensures that your container's elements
+// are deleted when the ElementDeleter goes out of scope.
+template <class T>
+void STLDeleteElements(T *container) {
+ if (!container) return;
+ STLDeleteContainerPointers(container->begin(), container->end());
+ container->clear();
+}
+
+// Given an STL container consisting of (key, value) pairs, STLDeleteValues
+// deletes all the "value" components and clears the container. Does nothing
+// in the case it's given a NULL pointer.
+template <class T>
+void STLDeleteValues(T *v) {
+ if (!v) return;
+ for (typename T::iterator i = v->begin(); i != v->end(); ++i) {
+ delete i->second;
+ }
+ v->clear();
+}
+
+template <class T>
+std::string ToString(const T& v) {
+ std::ostringstream os;
+ os << "[";
+ for (size_t i = 0; i < v.size(); ++i) {
+ os << v[i];
+ if (i < v.size() - 1) {
+ os << ", ";
+ }
+ }
+ os << "]";
+ return os.str();
+}
+
+} // namespace art
+
+#endif // ART_SRC_BASE_STL_UTIL_H_