Diff: zxing_lib/zxing/common/Array.h

Revision:

0:2f8d4a574b4e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/zxing_lib/zxing/common/Array.h	Fri Jan 12 15:41:00 2018 +0900
@@ -0,0 +1,170 @@
+// -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*-
+#ifndef __ARRAY_H__
+#define __ARRAY_H__
+
+/*
+ *  Array.h
+ *  zxing
+ *
+ *  Copyright 2010 ZXing authors All rights reserved.
+ *
+ * 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.
+ */
+
+#include <vector>
+
+#include <zxing/common/Counted.h>
+
+namespace zxing {
+
+template<typename T> class Array : public Counted {
+protected:
+public:
+  std::vector<T> values_;
+  Array() {}
+  Array(int n) :
+      Counted(), values_(n, T()) {
+  }
+  Array(T const* ts, int n) :
+      Counted(), values_(ts, ts+n) {
+  }
+  Array(T const* ts, T const* te) :
+      Counted(), values_(ts, te) {
+  }
+  Array(T v, int n) :
+      Counted(), values_(n, v) {
+  }
+  Array(std::vector<T> &v) :
+      Counted(), values_(v) {
+  }
+  Array(Array<T> &other) :
+      Counted(), values_(other.values_) {
+  }
+  Array(Array<T> *other) :
+      Counted(), values_(other->values_) {
+  }
+  virtual ~Array() {
+  }
+  Array<T>& operator=(const Array<T> &other) {
+    values_ = other.values_;
+    return *this;
+  }
+  Array<T>& operator=(const std::vector<T> &array) {
+    values_ = array;
+    return *this;
+  }
+  T const& operator[](int i) const {
+    return values_[i];
+  }
+  T& operator[](int i) {
+    return values_[i];
+  }
+  int size() const {
+    return values_.size();
+  }
+  bool empty() const {
+    return values_.size() == 0;
+  }
+  std::vector<T> const& values() const {
+    return values_;
+  }
+  std::vector<T>& values() {
+    return values_;
+  }
+};
+
+template<typename T> class ArrayRef : public Counted {
+private:
+public:
+  Array<T> *array_;
+  ArrayRef() :
+      array_(0) {
+  }
+  explicit ArrayRef(int n) :
+      array_(0) {
+    reset(new Array<T> (n));
+  }
+  ArrayRef(T *ts, int n) :
+      array_(0) {
+    reset(new Array<T> (ts, n));
+  }
+  ArrayRef(Array<T> *a) :
+      array_(0) {
+    reset(a);
+  }
+  ArrayRef(const ArrayRef &other) :
+      Counted(), array_(0) {
+    reset(other.array_);
+  }
+
+  template<class Y>
+  ArrayRef(const ArrayRef<Y> &other) :
+      array_(0) {
+    reset(static_cast<const Array<T> *>(other.array_));
+  }
+
+  ~ArrayRef() {
+    if (array_) {
+      array_->release();
+    }
+    array_ = 0;
+  }
+
+  T const& operator[](int i) const {
+    return (*array_)[i];
+  }
+
+  T& operator[](int i) {
+    return (*array_)[i];
+  }
+
+  void reset(Array<T> *a) {
+    if (a) {
+      a->retain();
+    }
+    if (array_) {
+      array_->release();
+    }
+    array_ = a;
+  }
+  void reset(const ArrayRef<T> &other) {
+    reset(other.array_);
+  }
+  ArrayRef<T>& operator=(const ArrayRef<T> &other) {
+    reset(other);
+    return *this;
+  }
+  ArrayRef<T>& operator=(Array<T> *a) {
+    reset(a);
+    return *this;
+  }
+
+  Array<T>& operator*() const {
+    return *array_;
+  }
+
+  Array<T>* operator->() const {
+    return array_;
+  }
+
+  operator bool () const {
+    return array_ != 0;
+  }
+  bool operator ! () const {
+    return array_ == 0;
+  }
+};
+
+} // namespace zxing
+
+#endif // __ARRAY_H__