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e0ae1fa061
extra/yassl/mySTL/memory.hpp: Portability fix, mySTL on Sun Forte 5.4: default template arguments that are based on previous template argument don't work, just remove the fancy syntax (non-default second argument is not used anywhere anyway).
142 lines
2.8 KiB
C++
142 lines
2.8 KiB
C++
/* mySTL memory.hpp
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*
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* Copyright (C) 2003 Sawtooth Consulting Ltd.
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*
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* This file is part of yaSSL.
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*
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* yaSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* yaSSL 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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/* mySTL memory implements auto_ptr
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*
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*/
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#ifndef mySTL_MEMORY_HPP
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#define mySTL_MEMORY_HPP
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#ifdef _MSC_VER
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// disable operator-> warning for builtins
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#pragma warning(disable:4284)
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#endif
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namespace mySTL {
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template<typename T>
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struct auto_ptr_ref {
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typedef void (*Deletor)(T*);
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T* ptr_;
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Deletor del_;
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auto_ptr_ref(T* p, Deletor d) : ptr_(p), del_(d) {}
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};
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template<typename T>
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class auto_ptr {
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typedef void (*Deletor)(T*);
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T* ptr_;
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Deletor del_;
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void Destroy()
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{
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del_(ptr_);
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}
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public:
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auto_ptr(T* p, Deletor d) : ptr_(p), del_(d) {}
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explicit auto_ptr(Deletor d) : ptr_(0), del_(d) {}
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~auto_ptr()
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{
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Destroy();
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}
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auto_ptr(auto_ptr& other) : ptr_(other.release()), del_(other.del_) {}
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auto_ptr& operator=(auto_ptr& that)
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{
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if (this != &that) {
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Destroy();
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ptr_ = that.release();
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del_ = that.del_;
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}
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return *this;
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}
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T* operator->() const
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{
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return ptr_;
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}
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T& operator*() const
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{
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return *ptr_;
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}
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T* get() const
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{
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return ptr_;
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}
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T* release()
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{
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T* tmp = ptr_;
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ptr_ = 0;
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return tmp;
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}
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void reset(T* p = 0)
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{
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if (ptr_ != p) {
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Destroy();
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ptr_ = p;
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}
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}
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// auto_ptr_ref conversions
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auto_ptr(auto_ptr_ref<T> ref) : ptr_(ref.ptr_), del_(ref.del_) {}
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auto_ptr& operator=(auto_ptr_ref<T> ref)
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{
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if (this->ptr_ != ref.ptr_) {
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Destroy();
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ptr_ = ref.ptr_;
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del_ = ref.del_;
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}
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return *this;
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}
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template<typename T2>
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operator auto_ptr<T2>()
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{
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return auto_ptr<T2>(this->release(), this->del_);
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}
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template<typename T2>
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operator auto_ptr_ref<T2>()
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{
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return auto_ptr_ref<T2>(this->release(), this->del_);
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}
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};
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} // namespace mySTL
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#endif // mySTL_MEMORY_HPP
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