Index: base/test/copy_only_int.h |
diff --git a/base/test/copy_only_int.h b/base/test/copy_only_int.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..d6ddb2d750837730ca8b26141a6eb3d4ce0325fe |
--- /dev/null |
+++ b/base/test/copy_only_int.h |
@@ -0,0 +1,55 @@ |
+// Copyright 2017 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_TEST_COPY_ONLY_INT_H_ |
+#define BASE_TEST_COPY_ONLY_INT_H_ |
+ |
+#include "base/macros.h" |
+ |
+namespace base { |
+ |
+// A copy-only (not moveable) class that holds an integer. This is designed for |
+// testing containers. See also MoveOnlyInt. |
+class CopyOnlyInt { |
+ public: |
+ explicit CopyOnlyInt(int data = 1) : data_(data) {} |
+ CopyOnlyInt(const CopyOnlyInt& other) : data_(other.data_) {} |
+ ~CopyOnlyInt() { data_ = 0; } |
+ |
+ friend bool operator==(const CopyOnlyInt& lhs, const CopyOnlyInt& rhs) { |
+ return lhs.data_ == rhs.data_; |
+ } |
+ |
+ friend bool operator!=(const CopyOnlyInt& lhs, const CopyOnlyInt& rhs) { |
+ return !operator==(lhs, rhs); |
+ } |
+ |
+ friend bool operator<(const CopyOnlyInt& lhs, const CopyOnlyInt& rhs) { |
+ return lhs.data_ < rhs.data_; |
+ } |
+ |
+ friend bool operator>(const CopyOnlyInt& lhs, const CopyOnlyInt& rhs) { |
+ return rhs < lhs; |
+ } |
+ |
+ friend bool operator<=(const CopyOnlyInt& lhs, const CopyOnlyInt& rhs) { |
+ return !(rhs < lhs); |
+ } |
+ |
+ friend bool operator>=(const CopyOnlyInt& lhs, const CopyOnlyInt& rhs) { |
+ return !(lhs < rhs); |
+ } |
+ |
+ int data() const { return data_; } |
+ |
+ private: |
+ int data_; |
+ |
+ CopyOnlyInt(CopyOnlyInt&&) = delete; |
+ CopyOnlyInt& operator=(CopyOnlyInt&) = delete; |
+}; |
+ |
+} // namespace base |
+ |
+#endif // BASE_TEST_COPY_ONLY_INT_H_ |