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@ -5,9 +5,11 @@
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#ifndef __IRR_ARRAY_H_INCLUDED__
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#define __IRR_ARRAY_H_INCLUDED__
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#include <algorithm>
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#include <iterator>
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#include <vector>
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#include "irrTypes.h"
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#include "heapsort.h"
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#include "irrAllocator.h"
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#include "irrMath.h"
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namespace irr
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@ -18,44 +20,27 @@ namespace core
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//! Self reallocating template array (like stl vector) with additional features.
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/** Some features are: Heap sorting, binary search methods, easier debugging.
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*/
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template <class T, typename TAlloc = irrAllocator<T> >
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template <class T>
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class array
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{
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public:
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static_assert(!std::is_same<T, bool>::value,
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"irr::core::array<T> with T = bool not supported. Use std::vector instead.");
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//! Default constructor for empty array.
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array() : data(0), allocated(0), used(0),
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strategy(ALLOC_STRATEGY_DOUBLE), free_when_destroyed(true), is_sorted(true)
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{
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}
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array() : m_data(), is_sorted(true)
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{ }
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//! Constructs an array and allocates an initial chunk of memory.
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/** \param start_count Amount of elements to pre-allocate. */
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explicit array(u32 start_count) : data(0), allocated(0), used(0),
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strategy(ALLOC_STRATEGY_DOUBLE),
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free_when_destroyed(true), is_sorted(true)
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explicit array(u32 start_count) : m_data(), is_sorted(true)
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{
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reallocate(start_count);
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m_data.reserve(start_count);
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}
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//! Copy constructor
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array(const array<T, TAlloc>& other) : data(0)
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{
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*this = other;
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}
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//! Destructor.
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/** Frees allocated memory, if set_free_when_destroyed was not set to
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false by the user before. */
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~array()
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{
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clear();
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}
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array(const array<T>& other) : m_data(other.m_data), is_sorted(other.is_sorted)
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{ }
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//! Reallocates the array, make it bigger or smaller.
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/** \param new_size New size of array.
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@ -65,52 +50,28 @@ public:
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*/
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void reallocate(u32 new_size, bool canShrink=true)
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{
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if (allocated==new_size)
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return;
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if (!canShrink && (new_size < allocated))
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return;
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T* old_data = data;
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data = allocator.allocate(new_size); //new T[new_size];
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allocated = new_size;
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// copy old data
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const s32 end = used < new_size ? used : new_size;
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for (s32 i=0; i<end; ++i)
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{
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// data[i] = old_data[i];
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allocator.construct(&data[i], old_data[i]);
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size_t allocated = m_data.capacity();
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if (new_size < allocated) {
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if (canShrink)
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m_data.resize(new_size);
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} else {
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m_data.reserve(new_size);
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}
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// destruct old data
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for (u32 j=0; j<used; ++j)
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allocator.destruct(&old_data[j]);
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if (allocated < used)
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used = allocated;
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allocator.deallocate(old_data); //delete [] old_data;
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}
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//! set a new allocation strategy
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/** if the maximum size of the array is unknown, you can define how big the
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allocation should happen.
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\param newStrategy New strategy to apply to this array. */
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void setAllocStrategy ( eAllocStrategy newStrategy = ALLOC_STRATEGY_DOUBLE )
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{
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strategy = newStrategy;
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}
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//! Adds an element at back of array.
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/** If the array is too small to add this new element it is made bigger.
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\param element: Element to add at the back of the array. */
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void push_back(const T& element)
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{
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insert(element, used);
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m_data.push_back(element);
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is_sorted = false;
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}
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void push_back(T&& element)
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{
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m_data.push_back(std::move(element));
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is_sorted = false;
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}
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@ -121,7 +82,14 @@ public:
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\param element Element to add at the back of the array. */
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void push_front(const T& element)
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{
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insert(element);
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m_data.insert(m_data.begin(), element);
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is_sorted = false;
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}
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void push_front(T&& element)
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{
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m_data.insert(m_data.begin(), std::move(element));
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is_sorted = false;
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}
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@ -131,106 +99,21 @@ public:
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\param index: Where position to insert the new element. */
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void insert(const T& element, u32 index=0)
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{
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_IRR_DEBUG_BREAK_IF(index>used) // access violation
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if (used + 1 > allocated)
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{
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// this doesn't work if the element is in the same
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// array. So we'll copy the element first to be sure
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// we'll get no data corruption
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const T e(element);
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// increase data block
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u32 newAlloc;
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switch ( strategy )
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{
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case ALLOC_STRATEGY_DOUBLE:
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newAlloc = used + 5 + (allocated < 500 ? used : used >> 2);
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break;
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default:
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case ALLOC_STRATEGY_SAFE:
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newAlloc = used + 1;
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break;
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}
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reallocate( newAlloc);
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// move array content and construct new element
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// first move end one up
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for (u32 i=used; i>index; --i)
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{
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if (i<used)
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allocator.destruct(&data[i]);
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allocator.construct(&data[i], data[i-1]); // data[i] = data[i-1];
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}
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// then add new element
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if (used > index)
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allocator.destruct(&data[index]);
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allocator.construct(&data[index], e); // data[index] = e;
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}
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else
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{
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// element inserted not at end
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if ( used > index )
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{
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// create one new element at the end
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allocator.construct(&data[used], data[used-1]);
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// move the rest of the array content
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for (u32 i=used-1; i>index; --i)
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{
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data[i] = data[i-1];
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}
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// insert the new element
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data[index] = element;
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}
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else
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{
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// insert the new element to the end
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allocator.construct(&data[index], element);
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}
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}
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// set to false as we don't know if we have the comparison operators
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_IRR_DEBUG_BREAK_IF(index > m_data.size()) // access violation
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auto pos = std::next(m_data.begin(), index);
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m_data.insert(pos, element);
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is_sorted = false;
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++used;
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}
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//! Clears the array and deletes all allocated memory.
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void clear()
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{
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if (free_when_destroyed)
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{
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for (u32 i=0; i<used; ++i)
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allocator.destruct(&data[i]);
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allocator.deallocate(data); // delete [] data;
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}
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data = 0;
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used = 0;
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allocated = 0;
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// vector::clear() reduces the size to 0, but doesn't free memory.
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// This swap is guaranteed to delete the allocated memory.
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std::vector<T>().swap(m_data);
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is_sorted = true;
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}
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//! Sets pointer to new array, using this as new workspace.
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/** Make sure that set_free_when_destroyed is used properly.
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\param newPointer: Pointer to new array of elements.
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\param size: Size of the new array.
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\param _is_sorted Flag which tells whether the new array is already
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sorted.
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\param _free_when_destroyed Sets whether the new memory area shall be
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freed by the array upon destruction, or if this will be up to the user
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application. */
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void set_pointer(T* newPointer, u32 size, bool _is_sorted=false, bool _free_when_destroyed=true)
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{
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clear();
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data = newPointer;
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allocated = size;
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used = size;
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is_sorted = _is_sorted;
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free_when_destroyed=_free_when_destroyed;
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}
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//! Set (copy) data from given memory block
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/** \param newData data to set, must have newSize elements
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\param newSize Amount of elements in newData
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@ -240,12 +123,11 @@ public:
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*/
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void set_data(const T* newData, u32 newSize, bool newDataIsSorted=false, bool canShrink=false)
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{
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reallocate(newSize, canShrink);
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set_used(newSize);
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for ( u32 i=0; i<newSize; ++i)
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{
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data[i] = newData[i];
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m_data.resize(newSize);
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if (canShrink) {
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m_data.shrink_to_fit();
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}
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std::copy(newData, newData + newSize, m_data.begin());
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is_sorted = newDataIsSorted;
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}
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@ -255,85 +137,51 @@ public:
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\param size Amount of elements in otherData */
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bool equals(const T* otherData, u32 size) const
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{
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if (used != size)
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if (m_data.size() != size)
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return false;
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for (u32 i=0; i<size; ++i)
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if (data[i] != otherData[i])
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return false;
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return true;
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return std::equal(m_data.begin(), m_data.end(), otherData);
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}
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//! Sets if the array should delete the memory it uses upon destruction.
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/** Also clear and set_pointer will only delete the (original) memory
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area if this flag is set to true, which is also the default. The
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methods reallocate, set_used, push_back, push_front, insert, and erase
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will still try to deallocate the original memory, which might cause
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troubles depending on the intended use of the memory area.
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\param f If true, the array frees the allocated memory in its
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destructor, otherwise not. The default is true. */
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void set_free_when_destroyed(bool f)
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{
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free_when_destroyed = f;
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}
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//! Sets the size of the array and allocates new elements if necessary.
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/** Please note: This is only secure when using it with simple types,
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because no default constructor will be called for the added elements.
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\param usedNow Amount of elements now used. */
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/** \param usedNow Amount of elements now used. */
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void set_used(u32 usedNow)
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{
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if (allocated < usedNow)
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reallocate(usedNow);
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used = usedNow;
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m_data.resize(usedNow);
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}
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//! Assignment operator
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const array<T, TAlloc>& operator=(const array<T, TAlloc>& other)
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const array<T>& operator=(const array<T>& other)
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{
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if (this == &other)
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return *this;
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strategy = other.strategy;
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// (TODO: we could probably avoid re-allocations of data when (allocated < other.allocated)
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if (data)
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clear();
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used = other.used;
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free_when_destroyed = true;
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m_data = other.m_data;
|
|
|
|
|
is_sorted = other.is_sorted;
|
|
|
|
|
allocated = other.allocated;
|
|
|
|
|
|
|
|
|
|
if (other.allocated == 0)
|
|
|
|
|
{
|
|
|
|
|
data = 0;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
data = allocator.allocate(other.allocated); // new T[other.allocated];
|
|
|
|
|
|
|
|
|
|
for (u32 i=0; i<other.used; ++i)
|
|
|
|
|
allocator.construct(&data[i], other.data[i]); // data[i] = other.data[i];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return *this;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
array<T>& operator=(const std::vector<T> &other)
|
|
|
|
|
{
|
|
|
|
|
m_data = other;
|
|
|
|
|
is_sorted = false;
|
|
|
|
|
return *this;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
array<T>& operator=(std::vector<T> &&other)
|
|
|
|
|
{
|
|
|
|
|
m_data = std::move(other);
|
|
|
|
|
is_sorted = false;
|
|
|
|
|
return *this;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
//! Equality operator
|
|
|
|
|
bool operator == (const array<T, TAlloc>& other) const
|
|
|
|
|
bool operator == (const array<T>& other) const
|
|
|
|
|
{
|
|
|
|
|
return equals(other.const_pointer(), other.size());
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//! Inequality operator
|
|
|
|
|
bool operator != (const array<T, TAlloc>& other) const
|
|
|
|
|
bool operator != (const array<T>& other) const
|
|
|
|
|
{
|
|
|
|
|
return !(*this==other);
|
|
|
|
|
}
|
|
|
|
@ -342,36 +190,36 @@ public:
|
|
|
|
|
//! Direct access operator
|
|
|
|
|
T& operator [](u32 index)
|
|
|
|
|
{
|
|
|
|
|
_IRR_DEBUG_BREAK_IF(index>=used) // access violation
|
|
|
|
|
_IRR_DEBUG_BREAK_IF(index >= m_data.size()) // access violation
|
|
|
|
|
|
|
|
|
|
return data[index];
|
|
|
|
|
return m_data[index];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//! Direct const access operator
|
|
|
|
|
const T& operator [](u32 index) const
|
|
|
|
|
{
|
|
|
|
|
_IRR_DEBUG_BREAK_IF(index>=used) // access violation
|
|
|
|
|
_IRR_DEBUG_BREAK_IF(index >= m_data.size()) // access violation
|
|
|
|
|
|
|
|
|
|
return data[index];
|
|
|
|
|
return m_data[index];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//! Gets last element.
|
|
|
|
|
T& getLast()
|
|
|
|
|
{
|
|
|
|
|
_IRR_DEBUG_BREAK_IF(!used) // access violation
|
|
|
|
|
_IRR_DEBUG_BREAK_IF(m_data.empty()) // access violation
|
|
|
|
|
|
|
|
|
|
return data[used-1];
|
|
|
|
|
return m_data.back();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//! Gets last element
|
|
|
|
|
const T& getLast() const
|
|
|
|
|
{
|
|
|
|
|
_IRR_DEBUG_BREAK_IF(!used) // access violation
|
|
|
|
|
_IRR_DEBUG_BREAK_IF(m_data.empty()) // access violation
|
|
|
|
|
|
|
|
|
|
return data[used-1];
|
|
|
|
|
return m_data.back();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@ -379,7 +227,7 @@ public:
|
|
|
|
|
/** \return Pointer to the array. */
|
|
|
|
|
T* pointer()
|
|
|
|
|
{
|
|
|
|
|
return data;
|
|
|
|
|
return &m_data[0];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@ -387,7 +235,7 @@ public:
|
|
|
|
|
/** \return Pointer to the array. */
|
|
|
|
|
const T* const_pointer() const
|
|
|
|
|
{
|
|
|
|
|
return data;
|
|
|
|
|
return &m_data[0];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@ -395,7 +243,7 @@ public:
|
|
|
|
|
/** \return Size of elements in the array which are actually occupied. */
|
|
|
|
|
u32 size() const
|
|
|
|
|
{
|
|
|
|
|
return used;
|
|
|
|
|
return m_data.size();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@ -404,7 +252,7 @@ public:
|
|
|
|
|
allocated would be allocated_size() * sizeof(ElementTypeUsed); */
|
|
|
|
|
u32 allocated_size() const
|
|
|
|
|
{
|
|
|
|
|
return allocated;
|
|
|
|
|
return m_data.capacity();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@ -412,7 +260,7 @@ public:
|
|
|
|
|
/** \return True if the array is empty false if not. */
|
|
|
|
|
bool empty() const
|
|
|
|
|
{
|
|
|
|
|
return used == 0;
|
|
|
|
|
return m_data.empty();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@ -421,9 +269,10 @@ public:
|
|
|
|
|
O(n*log n) in worst case. */
|
|
|
|
|
void sort()
|
|
|
|
|
{
|
|
|
|
|
if (!is_sorted && used>1)
|
|
|
|
|
heapsort(data, used);
|
|
|
|
|
is_sorted = true;
|
|
|
|
|
if (!is_sorted) {
|
|
|
|
|
std::sort(m_data.begin(), m_data.end());
|
|
|
|
|
is_sorted = true;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@ -437,10 +286,9 @@ public:
|
|
|
|
|
s32 binary_search(const T& element)
|
|
|
|
|
{
|
|
|
|
|
sort();
|
|
|
|
|
return binary_search(element, 0, used-1);
|
|
|
|
|
return binary_search(element, 0, (s32)m_data.size() - 1);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//! Performs a binary search for an element if possible, returns -1 if not found.
|
|
|
|
|
/** This method is for const arrays and so cannot call sort(), if the array is
|
|
|
|
|
not sorted then linear_search will be used instead. Potentially very slow!
|
|
|
|
@ -450,12 +298,11 @@ public:
|
|
|
|
|
s32 binary_search(const T& element) const
|
|
|
|
|
{
|
|
|
|
|
if (is_sorted)
|
|
|
|
|
return binary_search(element, 0, used-1);
|
|
|
|
|
return binary_search(element, 0, (s32)m_data.size() - 1);
|
|
|
|
|
else
|
|
|
|
|
return linear_search(element);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//! Performs a binary search for an element, returns -1 if not found.
|
|
|
|
|
/** \param element: Element to search for.
|
|
|
|
|
\param left First left index
|
|
|
|
@ -464,31 +311,15 @@ public:
|
|
|
|
|
is returned. */
|
|
|
|
|
s32 binary_search(const T& element, s32 left, s32 right) const
|
|
|
|
|
{
|
|
|
|
|
if (!used)
|
|
|
|
|
if (left > right)
|
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
|
|
s32 m;
|
|
|
|
|
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
m = (left+right)>>1;
|
|
|
|
|
|
|
|
|
|
if (element < data[m])
|
|
|
|
|
right = m - 1;
|
|
|
|
|
else
|
|
|
|
|
left = m + 1;
|
|
|
|
|
|
|
|
|
|
} while((element < data[m] || data[m] < element) && left<=right);
|
|
|
|
|
// this last line equals to:
|
|
|
|
|
// " while((element != array[m]) && left<=right);"
|
|
|
|
|
// but we only want to use the '<' operator.
|
|
|
|
|
// the same in next line, it is "(element == array[m])"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if (!(element < data[m]) && !(data[m] < element))
|
|
|
|
|
return m;
|
|
|
|
|
|
|
|
|
|
return -1;
|
|
|
|
|
auto lpos = std::next(m_data.begin(), left);
|
|
|
|
|
auto rpos = std::next(m_data.begin(), right);
|
|
|
|
|
auto it = std::lower_bound(lpos, rpos, element);
|
|
|
|
|
// *it = first element in [first, last) that is >= element, or last if not found.
|
|
|
|
|
if (*it < element || element < *it)
|
|
|
|
|
return -1;
|
|
|
|
|
return it - m_data.begin();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@ -503,25 +334,11 @@ public:
|
|
|
|
|
s32 binary_search_multi(const T& element, s32 &last)
|
|
|
|
|
{
|
|
|
|
|
sort();
|
|
|
|
|
s32 index = binary_search(element, 0, used-1);
|
|
|
|
|
if ( index < 0 )
|
|
|
|
|
return index;
|
|
|
|
|
|
|
|
|
|
// The search can be somewhere in the middle of the set
|
|
|
|
|
// look linear previous and past the index
|
|
|
|
|
last = index;
|
|
|
|
|
|
|
|
|
|
while ( index > 0 && !(element < data[index - 1]) && !(data[index - 1] < element) )
|
|
|
|
|
{
|
|
|
|
|
index -= 1;
|
|
|
|
|
}
|
|
|
|
|
// look linear up
|
|
|
|
|
while ( last < (s32) used - 1 && !(element < data[last + 1]) && !(data[last + 1] < element) )
|
|
|
|
|
{
|
|
|
|
|
last += 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return index;
|
|
|
|
|
auto iters = std::equal_range(m_data.begin(), m_data.end(), element);
|
|
|
|
|
if (iters.first == iters.second)
|
|
|
|
|
return -1;
|
|
|
|
|
last = (iters.second - m_data.begin()) - 1;
|
|
|
|
|
return iters.first - m_data.begin();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@ -533,11 +350,10 @@ public:
|
|
|
|
|
is returned. */
|
|
|
|
|
s32 linear_search(const T& element) const
|
|
|
|
|
{
|
|
|
|
|
for (u32 i=0; i<used; ++i)
|
|
|
|
|
if (element == data[i])
|
|
|
|
|
return (s32)i;
|
|
|
|
|
|
|
|
|
|
return -1;
|
|
|
|
|
auto it = std::find(m_data.begin(), m_data.end(), element);
|
|
|
|
|
if (it == m_data.end())
|
|
|
|
|
return -1;
|
|
|
|
|
return it - m_data.begin();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@ -549,11 +365,11 @@ public:
|
|
|
|
|
is returned. */
|
|
|
|
|
s32 linear_reverse_search(const T& element) const
|
|
|
|
|
{
|
|
|
|
|
for (s32 i=used-1; i>=0; --i)
|
|
|
|
|
if (data[i] == element)
|
|
|
|
|
return i;
|
|
|
|
|
|
|
|
|
|
return -1;
|
|
|
|
|
auto it = std::find(m_data.rbegin(), m_data.rend(), element);
|
|
|
|
|
if (it == m_data.rend())
|
|
|
|
|
return -1;
|
|
|
|
|
size_t offset = it - m_data.rbegin();
|
|
|
|
|
return m_data.size() - offset - 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@ -563,17 +379,9 @@ public:
|
|
|
|
|
\param index: Index of element to be erased. */
|
|
|
|
|
void erase(u32 index)
|
|
|
|
|
{
|
|
|
|
|
_IRR_DEBUG_BREAK_IF(index>=used) // access violation
|
|
|
|
|
|
|
|
|
|
for (u32 i=index+1; i<used; ++i)
|
|
|
|
|
{
|
|
|
|
|
allocator.destruct(&data[i-1]);
|
|
|
|
|
allocator.construct(&data[i-1], data[i]); // data[i-1] = data[i];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
allocator.destruct(&data[used-1]);
|
|
|
|
|
|
|
|
|
|
--used;
|
|
|
|
|
_IRR_DEBUG_BREAK_IF(index >= m_data.size()) // access violation
|
|
|
|
|
auto it = std::next(m_data.begin(), index);
|
|
|
|
|
m_data.erase(it);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@ -584,30 +392,14 @@ public:
|
|
|
|
|
\param count: Amount of elements to be erased. */
|
|
|
|
|
void erase(u32 index, s32 count)
|
|
|
|
|
{
|
|
|
|
|
if (index>=used || count<1)
|
|
|
|
|
if (index >= m_data.size() || count < 1)
|
|
|
|
|
return;
|
|
|
|
|
if (index+count>used)
|
|
|
|
|
count = used-index;
|
|
|
|
|
|
|
|
|
|
u32 i;
|
|
|
|
|
for (i=index; i<index+count; ++i)
|
|
|
|
|
allocator.destruct(&data[i]);
|
|
|
|
|
|
|
|
|
|
for (i=index+count; i<used; ++i)
|
|
|
|
|
{
|
|
|
|
|
if (i-count >= index+count) // not already destructed before loop
|
|
|
|
|
allocator.destruct(&data[i-count]);
|
|
|
|
|
|
|
|
|
|
allocator.construct(&data[i-count], data[i]); // data[i-count] = data[i];
|
|
|
|
|
|
|
|
|
|
if (i >= used-count) // those which are not overwritten
|
|
|
|
|
allocator.destruct(&data[i]);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
used-= count;
|
|
|
|
|
count = std::min(count, (s32)m_data.size() - (s32)index);
|
|
|
|
|
auto first = std::next(m_data.begin(), index);
|
|
|
|
|
auto last = std::next(first, count);
|
|
|
|
|
m_data.erase(first, last);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//! Sets if the array is sorted
|
|
|
|
|
void set_sorted(bool _is_sorted)
|
|
|
|
|
{
|
|
|
|
@ -619,38 +411,30 @@ public:
|
|
|
|
|
/** Afterward this object will contain the content of the other object and the other
|
|
|
|
|
object will contain the content of this object.
|
|
|
|
|
\param other Swap content with this object */
|
|
|
|
|
void swap(array<T, TAlloc>& other)
|
|
|
|
|
void swap(array<T>& other)
|
|
|
|
|
{
|
|
|
|
|
core::swap(data, other.data);
|
|
|
|
|
core::swap(allocated, other.allocated);
|
|
|
|
|
core::swap(used, other.used);
|
|
|
|
|
core::swap(allocator, other.allocator); // memory is still released by the same allocator used for allocation
|
|
|
|
|
eAllocStrategy helper_strategy(strategy); // can't use core::swap with bitfields
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strategy = other.strategy;
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other.strategy = helper_strategy;
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bool helper_free_when_destroyed(free_when_destroyed);
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free_when_destroyed = other.free_when_destroyed;
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other.free_when_destroyed = helper_free_when_destroyed;
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bool helper_is_sorted(is_sorted);
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is_sorted = other.is_sorted;
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other.is_sorted = helper_is_sorted;
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m_data.swap(other.m_data);
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std::swap(is_sorted, other.is_sorted);
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}
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//! Pull the contents of this array as a vector.
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// The array is left empty.
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std::vector<T> steal()
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{
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std::vector<T> ret = std::move(m_data);
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m_data.clear();
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is_sorted = true;
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return ret;
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}
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typedef TAlloc allocator_type;
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typedef T value_type;
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typedef u32 size_type;
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private:
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T* data;
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u32 allocated;
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u32 used;
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TAlloc allocator;
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eAllocStrategy strategy:4;
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bool free_when_destroyed:1;
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bool is_sorted:1;
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std::vector<T> m_data;
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bool is_sorted;
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};
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} // end namespace core
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} // end namespace irr
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