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author | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
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committer | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
commit | 460c52653ab0dcca6f19a4f492ed2c5e4e963ab0 (patch) | |
tree | 67208f7c145782a7e90b123b982ca78d88cc2c87 /indexlib/boost-compat/scoped_ptr.hpp | |
download | tdepim-460c52653ab0dcca6f19a4f492ed2c5e4e963ab0.tar.gz tdepim-460c52653ab0dcca6f19a4f492ed2c5e4e963ab0.zip |
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'indexlib/boost-compat/scoped_ptr.hpp')
-rw-r--r-- | indexlib/boost-compat/scoped_ptr.hpp | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/indexlib/boost-compat/scoped_ptr.hpp b/indexlib/boost-compat/scoped_ptr.hpp new file mode 100644 index 000000000..1260066ad --- /dev/null +++ b/indexlib/boost-compat/scoped_ptr.hpp @@ -0,0 +1,118 @@ +#ifndef BOOST_SCOPED_PTR_HPP_INCLUDED +#define BOOST_SCOPED_PTR_HPP_INCLUDED + +// ADAPTED FOR indexlib + +// (C) Copyright Greg Colvin and Beman Dawes 1998, 1999. +// Copyright (c) 2001, 2002 Peter Dimov +// +// 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) +// +// http://www.boost.org/libs/smart_ptr/scoped_ptr.htm +// + +#include "checked_delete.hpp" + +#include <memory> // for std::auto_ptr +#include <assert.h> + +namespace boost +{ + + +// scoped_ptr mimics a built-in pointer except that it guarantees deletion +// of the object pointed to, either on destruction of the scoped_ptr or via +// an explicit reset(). scoped_ptr is a simple solution for simple needs; +// use shared_ptr or std::auto_ptr if your needs are more complex. + +template<class T> class scoped_ptr // noncopyable +{ +private: + + T * ptr; + + scoped_ptr(scoped_ptr const &); + scoped_ptr & operator=(scoped_ptr const &); + + typedef scoped_ptr<T> this_type; + +public: + + typedef T element_type; + + explicit scoped_ptr(T * p = 0): ptr(p) // never throws + { + } + + + explicit scoped_ptr(std::auto_ptr<T> p): ptr(p.release()) // never throws + { + } + + ~scoped_ptr() // never throws + { + boost::checked_delete(ptr); + } + + void reset(T * p = 0) // never throws + { + assert(p == 0 || p != ptr); // catch self-reset errors + this_type(p).swap(*this); + } + + T & operator*() const // never throws + { + assert(ptr != 0); + return *ptr; + } + + T * operator->() const // never throws + { + assert(ptr != 0); + return ptr; + } + + T * get() const // never throws + { + return ptr; + } + + // implicit conversion to "bool" + + typedef T * this_type::*unspecified_bool_type; + + operator unspecified_bool_type() const // never throws + { + return ptr == 0? 0: &this_type::ptr; + } + + bool operator! () const // never throws + { + return ptr == 0; + } + + void swap(scoped_ptr & b) // never throws + { + T * tmp = b.ptr; + b.ptr = ptr; + ptr = tmp; + } +}; + +template<class T> inline void swap(scoped_ptr<T> & a, scoped_ptr<T> & b) // never throws +{ + a.swap(b); +} + +// get_pointer(p) is a generic way to say p.get() + +template<class T> inline T * get_pointer(scoped_ptr<T> const & p) +{ + return p.get(); +} + +} // namespace boost + +#endif // #ifndef BOOST_SCOPED_PTR_HPP_INCLUDED |