58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/gtk/private/glibptr.h
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// Purpose: Simple RAII helper for calling g_free() automatically
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// Author: Vadim Zeitlin
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// Created: 2024-12-28
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// Copyright: (c) 2024 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_GTK_PRIVATE_OWNEDPTR_H_
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#define _WX_GTK_PRIVATE_OWNEDPTR_H_
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// ----------------------------------------------------------------------------
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// Convenience class for calling g_free() automatically
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// ----------------------------------------------------------------------------
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template <typename T>
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class wxGlibPtr
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{
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public:
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wxGlibPtr() = default;
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explicit wxGlibPtr(const T *p) : m_ptr(const_cast<T*>(p)) { }
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wxGlibPtr(wxGlibPtr&& other) : m_ptr(other.m_ptr) { other.m_ptr = nullptr; }
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~wxGlibPtr() { g_free(m_ptr); }
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wxGlibPtr& operator=(wxGlibPtr&& other)
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{
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if ( &other != this )
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{
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g_free(m_ptr);
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m_ptr = other.m_ptr;
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other.m_ptr = nullptr;
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}
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return *this;
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}
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const T* get() const { return m_ptr; }
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operator const T*() const { return m_ptr; }
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T** Out()
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{
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wxASSERT_MSG( !m_ptr, wxS("Can't reuse the same object.") );
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return &m_ptr;
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}
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private:
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// We store the pointer as non-const because it avoids casts in the dtor
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// and Out(), but it's actually always handled as a const one.
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T* m_ptr = nullptr;
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wxDECLARE_NO_COPY_CLASS(wxGlibPtr);
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};
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#endif // _WX_GTK_PRIVATE_OWNEDPTR_H_
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