Mercurial > hg > vamp-build-and-test
diff DEPENDENCIES/generic/include/boost/locale/hold_ptr.hpp @ 16:2665513ce2d3
Add boost headers
author | Chris Cannam |
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date | Tue, 05 Aug 2014 11:11:38 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DEPENDENCIES/generic/include/boost/locale/hold_ptr.hpp Tue Aug 05 11:11:38 2014 +0100 @@ -0,0 +1,93 @@ +// +// Copyright (c) 2010 Artyom Beilis (Tonkikh) +// +// Distributed under the Boost Software License, Version 1.0. (See +// accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) +// +#ifndef BOOST_LOCALE_HOLD_PTR_H +#define BOOST_LOCALE_HOLD_PTR_H + +namespace boost { +namespace locale { + /// + /// \brief a smart pointer similar to std::auto_ptr but it is non-copyable and the + /// underlying object has the same constness as the pointer itself (unlike an ordinary pointer). + /// + template<typename T> + class hold_ptr { + hold_ptr(hold_ptr const &other); // non copyable + hold_ptr const &operator=(hold_ptr const &other); // non assignable + public: + /// + /// Create new empty pointer + /// + hold_ptr() : ptr_(0) {} + /// + /// Create a pointer that holds \a v, ownership is transferred to smart pointer + /// + explicit hold_ptr(T *v) : ptr_(v) {} + + /// + /// Destroy smart pointer and the object it owns. + /// + ~hold_ptr() + { + delete ptr_; + } + + /// + /// Get a const pointer to the object + /// + T const *get() const { return ptr_; } + /// + /// Get a mutable pointer to the object + /// + T *get() { return ptr_; } + + /// + /// Get a const reference to the object + /// + T const &operator *() const { return *ptr_; } + /// + /// Get a mutable reference to the object + /// + T &operator *() { return *ptr_; } + /// + /// Get a const pointer to the object + /// + T const *operator->() const { return ptr_; } + /// + /// Get a mutable pointer to the object + /// + T *operator->() { return ptr_; } + + /// + /// Transfer an ownership on the pointer to user + /// + T *release() { T *tmp=ptr_; ptr_=0; return tmp; } + + /// + /// Set new value to pointer, previous object is destroyed, ownership on new object is transferred + /// + void reset(T *p=0) + { + if(ptr_) delete ptr_; + ptr_=p; + } + /// Swap two pointers + void swap(hold_ptr &other) + { + T *tmp=other.ptr_; + other.ptr_=ptr_; + ptr_=tmp; + } + private: + T *ptr_; + }; + +} // locale +} // boost + +#endif +// vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4