Move test into test/std subdirectory.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@224658 91177308-0d34-0410-b5e6-96231b3b80d8

test/std/utilities/memory/unique.ptr/deleter.h

@@ -0,0 +1,181 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <memory>
+
+// unique_ptr
+
+// Example move-only deleter
+
+#ifndef DELETER_H
+#define DELETER_H
+
+#include <type_traits>
+#include <cassert>
+
+template <class T>
+class Deleter
+{
+    int state_;
+
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    Deleter(const Deleter&);
+    Deleter& operator=(const Deleter&);
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    Deleter(Deleter&);
+    Deleter& operator=(Deleter&);
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+public:
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    Deleter(Deleter&& r) : state_(r.state_) {r.state_ = 0;}
+    Deleter& operator=(Deleter&& r)
+    {
+        state_ = r.state_;
+        r.state_ = 0;
+        return *this;
+    }
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    operator std::__rv<Deleter>() {return std::__rv<Deleter>(*this);}
+    Deleter(std::__rv<Deleter> r) : state_(r->state_) {r->state_ = 0;}
+    Deleter& operator=(std::__rv<Deleter> r)
+    {
+        state_ = r->state_;
+        r->state_ = 0;
+        return *this;
+    }
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+    Deleter() : state_(0) {}
+    explicit Deleter(int s) : state_(s) {}
+    ~Deleter() {assert(state_ >= 0); state_ = -1;}
+
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    template <class U>
+        Deleter(Deleter<U>&& d,
+            typename std::enable_if<!std::is_same<U, T>::value>::type* = 0)
+            : state_(d.state()) {d.set_state(0);}
+
+private:
+    template <class U>
+        Deleter(const Deleter<U>& d,
+            typename std::enable_if<!std::is_same<U, T>::value>::type* = 0);
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    template <class U>
+        Deleter(Deleter<U> d,
+            typename std::enable_if<!std::is_same<U, T>::value>::type* = 0)
+            : state_(d.state()) {}
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+public:
+    int state() const {return state_;}
+    void set_state(int i) {state_ = i;}
+
+    void operator()(T* p) {delete p;}
+};
+
+template <class T>
+class Deleter<T[]>
+{
+    int state_;
+
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    Deleter(const Deleter&);
+    Deleter& operator=(const Deleter&);
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    Deleter(Deleter&);
+    Deleter& operator=(Deleter&);
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+public:
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    Deleter(Deleter&& r) : state_(r.state_) {r.state_ = 0;}
+    Deleter& operator=(Deleter&& r)
+    {
+        state_ = r.state_;
+        r.state_ = 0;
+        return *this;
+    }
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    operator std::__rv<Deleter>() {return std::__rv<Deleter>(*this);}
+    Deleter(std::__rv<Deleter> r) : state_(r->state_) {r->state_ = 0;}
+    Deleter& operator=(std::__rv<Deleter> r)
+    {
+        state_ = r->state_;
+        r->state_ = 0;
+        return *this;
+    }
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+    Deleter() : state_(0) {}
+    explicit Deleter(int s) : state_(s) {}
+    ~Deleter() {assert(state_ >= 0); state_ = -1;}
+
+    int state() const {return state_;}
+    void set_state(int i) {state_ = i;}
+
+    void operator()(T* p) {delete [] p;}
+};
+
+template <class T>
+void
+swap(Deleter<T>& x, Deleter<T>& y)
+{
+    Deleter<T> t(std::move(x));
+    x = std::move(y);
+    y = std::move(t);
+}
+
+template <class T>
+class CDeleter
+{
+    int state_;
+
+public:
+
+    CDeleter() : state_(0) {}
+    explicit CDeleter(int s) : state_(s) {}
+    ~CDeleter() {assert(state_ >= 0); state_ = -1;}
+
+    template <class U>
+        CDeleter(const CDeleter<U>& d)
+            : state_(d.state()) {}
+
+    int state() const {return state_;}
+    void set_state(int i) {state_ = i;}
+
+    void operator()(T* p) {delete p;}
+};
+
+template <class T>
+class CDeleter<T[]>
+{
+    int state_;
+
+public:
+
+    CDeleter() : state_(0) {}
+    explicit CDeleter(int s) : state_(s) {}
+    ~CDeleter() {assert(state_ >= 0); state_ = -1;}
+
+    int state() const {return state_;}
+    void set_state(int i) {state_ = i;}
+
+    void operator()(T* p) {delete [] p;}
+};
+
+template <class T>
+void
+swap(CDeleter<T>& x, CDeleter<T>& y)
+{
+    CDeleter<T> t(std::move(x));
+    x = std::move(y);
+    y = std::move(t);
+}
+
+#endif  // DELETER_H