79 lines
2.5 KiB
C++
79 lines
2.5 KiB
C++
/***************************************************************************
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scoped_ptr - a not too smart pointer for exception safe heap objects
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-------------------------
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begin : May 2019
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copyright : (C) 2019 Intermodalics
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***************************************************************************
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Lesser General Public *
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* License as published by the Free Software Foundation; either *
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* version 2.1 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with this library; if not, write to the Free Software *
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* Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307 USA *
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* *
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***************************************************************************/
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#if (__cplusplus > 199711L)
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#include <utility>
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#else
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#include <algorithm>
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#endif
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namespace KDL {
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template<typename T> class scoped_ptr;
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template<typename T> void swap(scoped_ptr<T>&, scoped_ptr<T>&);
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template<typename T>
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class scoped_ptr {
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public:
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scoped_ptr() : ptr_(0) { }
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explicit scoped_ptr(T* p) : ptr_(p) { }
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~scoped_ptr() { delete ptr_; }
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T* operator->() { return ptr_; }
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const T* operator->() const { return ptr_; }
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T* get() const { return ptr_; }
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void reset(T* p = 0) {
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T* old = ptr_;
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ptr_ = p;
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delete old;
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}
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T* release() {
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T* old = ptr_;
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ptr_ = 0;
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return old;
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}
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friend void swap<>(scoped_ptr<T>& a, scoped_ptr<T>& b);
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private:
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scoped_ptr(const scoped_ptr&); // not-copyable
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scoped_ptr& operator=(const scoped_ptr&); // not-copyable
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T* ptr_;
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};
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template<typename T>
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void swap(scoped_ptr<T>& a, scoped_ptr<T>& b) {
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using std::swap;
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swap(a.ptr_, b.ptr_);
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}
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} // namespace KDL
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