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-rw-r--r--common/ptr.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/common/ptr.h b/common/ptr.h
index bceba2787d..09ef6693cd 100644
--- a/common/ptr.h
+++ b/common/ptr.h
@@ -26,6 +26,7 @@
#define COMMON_PTR_H
#include "common/scummsys.h"
+#include "common/noncopyable.h"
namespace Common {
@@ -216,6 +217,60 @@ private:
T *_pointer;
};
+template<typename T>
+class ScopedPtr : Common::NonCopyable {
+protected:
+ T *object;
+
+public:
+ typedef T ValueType;
+ typedef T *PointerType;
+
+ explicit ScopedPtr(T *o = 0): object(o) {}
+
+ T& operator*() const { return *object; }
+ T *operator->() const { return object; }
+ operator T*() const { return object; }
+
+ /**
+ * Implicit conversion operator to bool for convenience, to make
+ * checks like "if (scopedPtr) ..." possible.
+ */
+ operator bool() const { return object != 0; }
+
+ ~ScopedPtr() {
+ delete object;
+ }
+
+ /**
+ * Resets the pointer with the new value. Old object will be destroyed
+ */
+ void reset(T *o = 0) {
+ delete object;
+ object = o;
+ }
+
+ /**
+ * Returns the plain pointer value.
+ *
+ * @return the pointer the ScopedPtr manages
+ */
+ T *get() const { return object; }
+
+ /**
+ * Returns the plain pointer value and releases ScopedPtr.
+ * After release() call you need to delete object yourself
+ *
+ * @return the pointer the ScopedPtr manages
+ */
+ T *release() {
+ T *r = object;
+ object = 0;
+ return r;
+ }
+};
+
+
} // End of namespace Common
#endif