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Diffstat (limited to 'xsd/libxsd/xsd/cxx/xml/dom/auto-ptr.hxx')
-rw-r--r-- | xsd/libxsd/xsd/cxx/xml/dom/auto-ptr.hxx | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/xsd/libxsd/xsd/cxx/xml/dom/auto-ptr.hxx b/xsd/libxsd/xsd/cxx/xml/dom/auto-ptr.hxx new file mode 100644 index 0000000..f22e652 --- /dev/null +++ b/xsd/libxsd/xsd/cxx/xml/dom/auto-ptr.hxx @@ -0,0 +1,158 @@ +// file : xsd/cxx/xml/dom/auto-ptr.hxx +// author : Boris Kolpackov <boris@codesynthesis.com> +// copyright : Copyright (c) 2005-2010 Code Synthesis Tools CC +// license : GNU GPL v2 + exceptions; see accompanying LICENSE file + +#ifndef XSD_CXX_XML_DOM_AUTO_PTR_HXX +#define XSD_CXX_XML_DOM_AUTO_PTR_HXX + +namespace xsd +{ + namespace cxx + { + namespace xml + { + namespace dom + { + // Simple auto_ptr version that calls release() instead of delete. + // + + template <typename T> + struct remove_c + { + typedef T r; + }; + + template <typename T> + struct remove_c<const T> + { + typedef T r; + }; + + template <typename T> + struct auto_ptr_ref + { + T* x_; + + explicit + auto_ptr_ref (T* x) + : x_ (x) + { + } + }; + + template <typename T> + struct auto_ptr + { + ~auto_ptr () + { + reset (); + } + + explicit + auto_ptr (T* x = 0) + : x_ (x) + { + } + + auto_ptr (auto_ptr& y) + : x_ (y.release ()) + { + } + + template <typename T2> + auto_ptr (auto_ptr<T2>& y) + : x_ (y.release ()) + { + } + + auto_ptr (auto_ptr_ref<T> r) + : x_ (r.x_) + { + } + + auto_ptr& + operator= (auto_ptr& y) + { + if (x_ != y.x_) + reset (y.release ()); + + return *this; + } + + template <typename T2> + auto_ptr& + operator= (auto_ptr<T2>& y) + { + if (x_ != y.x_) + reset (y.release ()); + + return *this; + } + + auto_ptr& + operator= (auto_ptr_ref<T> r) + { + if (r.x_ != x_) + reset (r.x_); + + return *this; + } + + template <typename T2> + operator auto_ptr_ref<T2> () + { + return auto_ptr_ref<T2> (release ()); + } + + template <typename T2> + operator auto_ptr<T2> () + { + return auto_ptr<T2> (release ()); + } + + public: + T& + operator* () const + { + return *x_; + } + + T* + operator-> () const + { + return x_; + } + + T* + get () const + { + return x_; + } + + T* + release () + { + T* x (x_); + x_ = 0; + return x; + } + + void + reset (T* x = 0) + { + if (x_) + const_cast<typename remove_c<T>::r*> (x_)->release (); + + x_ = x; + } + + private: + T* x_; + }; + } + } + } +} + +#endif // XSD_CXX_XML_DOM_AUTO_PTR_HXX |