4f4c5fcfdf
This is a combination of running clang-tidy with modernize-use-nullptr check for some ports (GTK, X11, OSX) and manual changes to the ports for which it couldn't be used easily (MSW, DFB) and also manually updating the docs. Also replace NULL with null or nullptr in the comments as this is more consistent with the use of nullptr in the code and makes it simpler to grep for the remaining occurrences of NULL itself. And also use null in the assert messages. Only a few occurrences of "NULL" are still left in non-C files, mostly corresponding to unclear comments or string output which it might not be safe to change.
120 lines
3.8 KiB
C++
120 lines
3.8 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/scopedarray.h
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// Purpose: scoped smart pointer class
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// Author: Vadim Zeitlin
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// Created: 2009-02-03
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// Copyright: (c) Jesse Lovelace and original Boost authors (see below)
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// (c) 2009 Vadim Zeitlin
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_SCOPED_ARRAY_H_
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#define _WX_SCOPED_ARRAY_H_
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#include "wx/defs.h"
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#include "wx/checkeddelete.h"
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// ----------------------------------------------------------------------------
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// wxScopedArray: A scoped array
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// ----------------------------------------------------------------------------
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template <class T>
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class wxScopedArray
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{
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public:
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typedef T element_type;
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explicit wxScopedArray(T * array = nullptr) : m_array(array) { }
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explicit wxScopedArray(size_t count) : m_array(new T[count]) { }
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~wxScopedArray() { delete [] m_array; }
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// test for pointer validity: defining conversion to unspecified_bool_type
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// and not more obvious bool to avoid implicit conversions to integer types
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typedef T *(wxScopedArray<T>::*unspecified_bool_type)() const;
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operator unspecified_bool_type() const
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{
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return m_array ? &wxScopedArray<T>::get : nullptr;
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}
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void reset(T *array = nullptr)
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{
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if ( array != m_array )
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{
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delete [] m_array;
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m_array = array;
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}
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}
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T& operator[](size_t n) const { return m_array[n]; }
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T *get() const { return m_array; }
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void swap(wxScopedArray &other)
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{
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T * const tmp = other.m_array;
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other.m_array = m_array;
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m_array = tmp;
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}
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private:
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T *m_array;
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wxDECLARE_NO_COPY_TEMPLATE_CLASS(wxScopedArray, T);
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};
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// ----------------------------------------------------------------------------
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// old macro based implementation
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// ----------------------------------------------------------------------------
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// the same but for arrays instead of simple pointers
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#define wxDECLARE_SCOPED_ARRAY(T, name)\
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class name \
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{ \
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private: \
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T * m_ptr; \
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name(name const &); \
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name & operator=(name const &); \
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\
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public: \
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explicit name(T * p = nullptr) : m_ptr(p) \
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{} \
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\
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~name(); \
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void reset(T * p = nullptr); \
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\
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T & operator[](long int i) const\
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{ \
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wxASSERT(m_ptr != nullptr); \
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wxASSERT(i >= 0); \
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return m_ptr[i]; \
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} \
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\
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T * get() const \
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{ \
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return m_ptr; \
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} \
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\
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void swap(name & ot) \
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{ \
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T * tmp = ot.m_ptr; \
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ot.m_ptr = m_ptr; \
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m_ptr = tmp; \
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} \
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};
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#define wxDEFINE_SCOPED_ARRAY(T, name) \
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name::~name() \
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{ \
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wxCHECKED_DELETE_ARRAY(m_ptr); \
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} \
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void name::reset(T * p){ \
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if (m_ptr != p) \
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{ \
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wxCHECKED_DELETE_ARRAY(m_ptr); \
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m_ptr = p; \
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} \
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}
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#endif // _WX_SCOPED_ARRAY_H_
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