767 lines
21 KiB
C++
767 lines
21 KiB
C++
#pragma once
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#include <stdint.h>
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#include <cstring>
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#include "UtlMemory.hpp"
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#define _Utl_Vector_assert
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template <class T>
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inline T* CopyConstruct(T* pMemory, T const& src)
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{
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return ::new(pMemory) T(src);
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}
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template< class T, class A = CUtlMemory<T> >
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class CUtlVector
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{
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typedef T *iterator;
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typedef const T *const_iterator;
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typedef A CAllocator;
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public:
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typedef T ElemType_t;
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// constructor, destructor
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CUtlVector(int growSize = 0, int initSize = 0);
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CUtlVector(T* pMemory, int allocationCount, int numElements = 0);
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~CUtlVector();
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// Copy the array.
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CUtlVector<T, A>& operator=(const CUtlVector<T, A> &other);
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// element access
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T& operator[](int i);
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const T& operator[](int i) const;
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T& Element(int i);
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const T& Element(int i) const;
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T& Head();
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const T& Head() const;
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T& Tail();
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const T& Tail() const;
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// Gets the base address (can change when adding elements!)
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T* Base() { return m_Memory.Base(); }
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const T* Base() const { return m_Memory.Base(); }
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// Returns the number of elements in the vector
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int Count() const;
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// Is element index valid?
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bool IsValidIndex(int i) const;
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static int InvalidIndex();
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// Adds an element, uses default constructor
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int AddToHead();
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int AddToTail();
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int InsertBefore(int elem);
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int InsertAfter(int elem);
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// Adds an element, uses copy constructor
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int AddToHead(const T& src);
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int AddToTail(const T& src);
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int InsertBefore(int elem, const T& src);
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int InsertAfter(int elem, const T& src);
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// Adds multiple elements, uses default constructor
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int AddMultipleToHead(int num);
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int AddMultipleToTail(int num);
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int AddMultipleToTail(int num, const T *pToCopy);
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int InsertMultipleBefore(int elem, int num);
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int InsertMultipleBefore(int elem, int num, const T *pToCopy);
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int InsertMultipleAfter(int elem, int num);
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// Calls RemoveAll() then AddMultipleToTail.
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void SetSize(int size);
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void SetCount(int count);
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void SetCountNonDestructively(int count); //sets count by adding or removing elements to tail TODO: This should probably be the default behavior for SetCount
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void CopyArray(const T *pArray, int size); //Calls SetSize and copies each element.
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// Fast swap
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void Swap(CUtlVector< T, A > &vec);
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// Add the specified array to the tail.
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int AddVectorToTail(CUtlVector<T, A> const &src);
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// Finds an element (element needs operator== defined)
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int GetOffset(const T& src) const;
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void FillWithValue(const T& src);
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bool HasElement(const T& src) const;
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// Makes sure we have enough memory allocated to store a requested # of elements
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void EnsureCapacity(int num);
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// Makes sure we have at least this many elements
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void EnsureCount(int num);
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// Element removal
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void FastRemove(int elem); // doesn't preserve order
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void Remove(int elem); // preserves order, shifts elements
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bool FindAndRemove(const T& src); // removes first occurrence of src, preserves order, shifts elements
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bool FindAndFastRemove(const T& src); // removes first occurrence of src, doesn't preserve order
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void RemoveMultiple(int elem, int num); // preserves order, shifts elements
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void RemoveMultipleFromHead(int num); // removes num elements from tail
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void RemoveMultipleFromTail(int num); // removes num elements from tail
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void RemoveAll(); // doesn't deallocate memory
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void Purge(); // Memory deallocation
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// Purges the list and calls delete on each element in it.
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void PurgeAndDeleteElements();
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// Compacts the vector to the number of elements actually in use
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void Compact();
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// Set the size by which it grows when it needs to allocate more memory.
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void SetGrowSize(int size) { m_Memory.SetGrowSize(size); }
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int NumAllocated() const; // Only use this if you really know what you're doing!
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void Sort(int(__cdecl *pfnCompare)(const T *, const T *));
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iterator begin() { return Base(); }
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const_iterator begin() const { return Base(); }
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iterator end() { return Base() + Count(); }
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const_iterator end() const { return Base() + Count(); }
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protected:
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// Can't copy this unless we explicitly do it!
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CUtlVector(CUtlVector const& vec) { _Utl_Vector_assert(0); }
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// Grows the vector
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void GrowVector(int num = 1);
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// Shifts elements....
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void ShiftElementsRight(int elem, int num = 1);
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void ShiftElementsLeft(int elem, int num = 1);
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public:
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CAllocator m_Memory;
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int m_Size;
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// For easier access to the elements through the debugger
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// it's in release builds so this can be used in libraries correctly
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T *m_pElements;
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inline void ResetDbgInfo()
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{
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m_pElements = Base();
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}
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};
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//-----------------------------------------------------------------------------
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// constructor, destructor
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//-----------------------------------------------------------------------------
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template< typename T, class A >
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inline CUtlVector<T, A>::CUtlVector(int growSize, int initSize) :
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m_Memory(growSize, initSize), m_Size(0)
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{
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ResetDbgInfo();
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}
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template< typename T, class A >
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inline CUtlVector<T, A>::CUtlVector(T* pMemory, int allocationCount, int numElements) :
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m_Memory(pMemory, allocationCount), m_Size(numElements)
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{
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ResetDbgInfo();
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}
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template< typename T, class A >
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inline CUtlVector<T, A>::~CUtlVector()
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{
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Purge();
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}
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template< typename T, class A >
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inline CUtlVector<T, A>& CUtlVector<T, A>::operator=(const CUtlVector<T, A> &other)
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{
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int nCount = other.Count();
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SetSize(nCount);
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for(int i = 0; i < nCount; i++) {
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(*this)[i] = other[i];
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}
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return *this;
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}
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//-----------------------------------------------------------------------------
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// element access
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//-----------------------------------------------------------------------------
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template< typename T, class A >
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inline T& CUtlVector<T, A>::operator[](int i)
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{
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_Utl_Vector_assert(i < m_Size);
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return m_Memory[i];
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}
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template< typename T, class A >
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inline const T& CUtlVector<T, A>::operator[](int i) const
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{
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_Utl_Vector_assert(i < m_Size);
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return m_Memory[i];
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}
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template< typename T, class A >
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inline T& CUtlVector<T, A>::Element(int i)
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{
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_Utl_Vector_assert(i < m_Size);
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return m_Memory[i];
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}
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template< typename T, class A >
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inline const T& CUtlVector<T, A>::Element(int i) const
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{
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_Utl_Vector_assert(i < m_Size);
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return m_Memory[i];
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}
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template< typename T, class A >
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inline T& CUtlVector<T, A>::Head()
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{
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_Utl_Vector_assert(m_Size > 0);
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return m_Memory[0];
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}
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template< typename T, class A >
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inline const T& CUtlVector<T, A>::Head() const
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{
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_Utl_Vector_assert(m_Size > 0);
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return m_Memory[0];
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}
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template< typename T, class A >
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inline T& CUtlVector<T, A>::Tail()
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{
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_Utl_Vector_assert(m_Size > 0);
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return m_Memory[m_Size - 1];
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}
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template< typename T, class A >
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inline const T& CUtlVector<T, A>::Tail() const
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{
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_Utl_Vector_assert(m_Size > 0);
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return m_Memory[m_Size - 1];
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}
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//-----------------------------------------------------------------------------
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// Count
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//-----------------------------------------------------------------------------
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template< typename T, class A >
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inline int CUtlVector<T, A>::Count() const
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{
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return m_Size;
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}
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//-----------------------------------------------------------------------------
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// Is element index valid?
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//-----------------------------------------------------------------------------
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template< typename T, class A >
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inline bool CUtlVector<T, A>::IsValidIndex(int i) const
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{
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return (i >= 0) && (i < m_Size);
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}
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//-----------------------------------------------------------------------------
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// Returns in invalid index
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//-----------------------------------------------------------------------------
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template< typename T, class A >
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inline int CUtlVector<T, A>::InvalidIndex()
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{
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return -1;
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}
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//-----------------------------------------------------------------------------
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// Grows the vector
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//-----------------------------------------------------------------------------
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template< typename T, class A >
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void CUtlVector<T, A>::GrowVector(int num)
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{
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if(m_Size + num > m_Memory.NumAllocated()) {
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m_Memory.Grow(m_Size + num - m_Memory.NumAllocated());
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}
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m_Size += num;
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ResetDbgInfo();
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}
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//-----------------------------------------------------------------------------
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// Sorts the vector
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//-----------------------------------------------------------------------------
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template< typename T, class A >
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void CUtlVector<T, A>::Sort(int(__cdecl *pfnCompare)(const T *, const T *))
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{
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typedef int(__cdecl *QSortCompareFunc_t)(const void *, const void *);
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if(Count() <= 1)
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return;
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if(Base()) {
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qsort(Base(), Count(), sizeof(T), (QSortCompareFunc_t)(pfnCompare));
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} else {
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_Utl_Vector_assert(0);
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// this path is untested
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// if you want to sort vectors that use a non-sequential memory allocator,
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// you'll probably want to patch in a quicksort algorithm here
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// I just threw in this bubble sort to have something just in case...
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for(int i = m_Size - 1; i >= 0; --i) {
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for(int j = 1; j <= i; ++j) {
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if(pfnCompare(&Element(j - 1), &Element(j)) < 0) {
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V_swap(Element(j - 1), Element(j));
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}
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}
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}
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}
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}
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//-----------------------------------------------------------------------------
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// Makes sure we have enough memory allocated to store a requested # of elements
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//-----------------------------------------------------------------------------
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template< typename T, class A >
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void CUtlVector<T, A>::EnsureCapacity(int num)
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{
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MEM_ALLOC_CREDIT_CLASS();
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m_Memory.EnsureCapacity(num);
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ResetDbgInfo();
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}
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//-----------------------------------------------------------------------------
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// Makes sure we have at least this many elements
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//-----------------------------------------------------------------------------
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template< typename T, class A >
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void CUtlVector<T, A>::EnsureCount(int num)
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{
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if(Count() < num) {
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AddMultipleToTail(num - Count());
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}
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}
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//-----------------------------------------------------------------------------
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// Shifts elements
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//-----------------------------------------------------------------------------
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template< typename T, class A >
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void CUtlVector<T, A>::ShiftElementsRight(int elem, int num)
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{
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_Utl_Vector_assert(IsValidIndex(elem) || (m_Size == 0) || (num == 0));
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int numToMove = m_Size - elem - num;
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if((numToMove > 0) && (num > 0))
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memmove(&Element(elem + num), &Element(elem), numToMove * sizeof(T));
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}
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template< typename T, class A >
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void CUtlVector<T, A>::ShiftElementsLeft(int elem, int num)
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{
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_Utl_Vector_assert(IsValidIndex(elem) || (m_Size == 0) || (num == 0));
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int numToMove = m_Size - elem - num;
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if((numToMove > 0) && (num > 0)) {
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memmove(&Element(elem), &Element(elem + num), numToMove * sizeof(T));
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#ifdef _DEBUG
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memset(&Element(m_Size - num), 0xDD, num * sizeof(T));
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#endif
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}
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}
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//-----------------------------------------------------------------------------
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// Adds an element, uses default constructor
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//-----------------------------------------------------------------------------
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template< typename T, class A >
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inline int CUtlVector<T, A>::AddToHead()
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{
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return InsertBefore(0);
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}
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template< typename T, class A >
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inline int CUtlVector<T, A>::AddToTail()
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{
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return InsertBefore(m_Size);
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}
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template< typename T, class A >
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inline int CUtlVector<T, A>::InsertAfter(int elem)
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{
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return InsertBefore(elem + 1);
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}
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template< typename T, class A >
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int CUtlVector<T, A>::InsertBefore(int elem)
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{
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// Can insert at the end
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_Utl_Vector_assert((elem == Count()) || IsValidIndex(elem));
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GrowVector();
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ShiftElementsRight(elem);
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Construct(&Element(elem));
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return elem;
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}
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//-----------------------------------------------------------------------------
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// Adds an element, uses copy constructor
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//-----------------------------------------------------------------------------
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template< typename T, class A >
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inline int CUtlVector<T, A>::AddToHead(const T& src)
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{
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// Can't insert something that's in the list... reallocation may hose us
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_Utl_Vector_assert((Base() == NULL) || (&src < Base()) || (&src >= (Base() + Count())));
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return InsertBefore(0, src);
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}
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template< typename T, class A >
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inline int CUtlVector<T, A>::AddToTail(const T& src)
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{
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// Can't insert something that's in the list... reallocation may hose us
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_Utl_Vector_assert((Base() == NULL) || (&src < Base()) || (&src >= (Base() + Count())));
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return InsertBefore(m_Size, src);
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}
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template< typename T, class A >
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inline int CUtlVector<T, A>::InsertAfter(int elem, const T& src)
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{
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// Can't insert something that's in the list... reallocation may hose us
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_Utl_Vector_assert((Base() == NULL) || (&src < Base()) || (&src >= (Base() + Count())));
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return InsertBefore(elem + 1, src);
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}
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template< typename T, class A >
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int CUtlVector<T, A>::InsertBefore(int elem, const T& src)
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{
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// Can't insert something that's in the list... reallocation may hose us
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_Utl_Vector_assert((Base() == NULL) || (&src < Base()) || (&src >= (Base() + Count())));
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// Can insert at the end
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_Utl_Vector_assert((elem == Count()) || IsValidIndex(elem));
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GrowVector();
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ShiftElementsRight(elem);
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CopyConstruct(&Element(elem), src);
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return elem;
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}
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//-----------------------------------------------------------------------------
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// Adds multiple elements, uses default constructor
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//-----------------------------------------------------------------------------
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template< typename T, class A >
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inline int CUtlVector<T, A>::AddMultipleToHead(int num)
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{
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return InsertMultipleBefore(0, num);
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}
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template< typename T, class A >
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inline int CUtlVector<T, A>::AddMultipleToTail(int num)
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{
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return InsertMultipleBefore(m_Size, num);
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}
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template< typename T, class A >
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inline int CUtlVector<T, A>::AddMultipleToTail(int num, const T *pToCopy)
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{
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// Can't insert something that's in the list... reallocation may hose us
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_Utl_Vector_assert((Base() == NULL) || !pToCopy || (pToCopy + num <= Base()) || (pToCopy >= (Base() + Count())));
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return InsertMultipleBefore(m_Size, num, pToCopy);
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}
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template< typename T, class A >
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int CUtlVector<T, A>::InsertMultipleAfter(int elem, int num)
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{
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return InsertMultipleBefore(elem + 1, num);
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}
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template< typename T, class A >
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void CUtlVector<T, A>::SetCount(int count)
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{
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RemoveAll();
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AddMultipleToTail(count);
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}
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template< typename T, class A >
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inline void CUtlVector<T, A>::SetSize(int size)
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{
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SetCount(size);
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}
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template< typename T, class A >
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void CUtlVector<T, A>::SetCountNonDestructively(int count)
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{
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int delta = count - m_Size;
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if(delta > 0) AddMultipleToTail(delta);
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else if(delta < 0) RemoveMultipleFromTail(-delta);
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}
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template< typename T, class A >
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void CUtlVector<T, A>::CopyArray(const T *pArray, int size)
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{
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// Can't insert something that's in the list... reallocation may hose us
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_Utl_Vector_assert((Base() == NULL) || !pArray || (Base() >= (pArray + size)) || (pArray >= (Base() + Count())));
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SetSize(size);
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for(int i = 0; i < size; i++) {
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(*this)[i] = pArray[i];
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}
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}
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template< typename T, class A >
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void CUtlVector<T, A>::Swap(CUtlVector< T, A > &vec)
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{
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m_Memory.Swap(vec.m_Memory);
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V_swap(m_Size, vec.m_Size);
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#ifndef _X360
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V_swap(m_pElements, vec.m_pElements);
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#endif
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}
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template< typename T, class A >
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int CUtlVector<T, A>::AddVectorToTail(CUtlVector const &src)
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{
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_Utl_Vector_assert(&src != this);
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int base = Count();
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// Make space.
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int nSrcCount = src.Count();
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EnsureCapacity(base + nSrcCount);
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// Copy the elements.
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m_Size += nSrcCount;
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for(int i = 0; i < nSrcCount; i++) {
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CopyConstruct(&Element(base + i), src[i]);
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}
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return base;
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}
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template< typename T, class A >
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inline int CUtlVector<T, A>::InsertMultipleBefore(int elem, int num)
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{
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if(num == 0)
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return elem;
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// Can insert at the end
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_Utl_Vector_assert((elem == Count()) || IsValidIndex(elem));
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GrowVector(num);
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ShiftElementsRight(elem, num);
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// Invoke default constructors
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for(int i = 0; i < num; ++i) {
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Construct(&Element(elem + i));
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}
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return elem;
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}
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template< typename T, class A >
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inline int CUtlVector<T, A>::InsertMultipleBefore(int elem, int num, const T *pToInsert)
|
|
{
|
|
if(num == 0)
|
|
return elem;
|
|
|
|
// Can insert at the end
|
|
_Utl_Vector_assert((elem == Count()) || IsValidIndex(elem));
|
|
|
|
GrowVector(num);
|
|
ShiftElementsRight(elem, num);
|
|
|
|
// Invoke default constructors
|
|
if(!pToInsert) {
|
|
for(int i = 0; i < num; ++i) {
|
|
Construct(&Element(elem + i));
|
|
}
|
|
} else {
|
|
for(int i = 0; i < num; i++) {
|
|
CopyConstruct(&Element(elem + i), pToInsert[i]);
|
|
}
|
|
}
|
|
|
|
return elem;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Finds an element (element needs operator== defined)
|
|
//-----------------------------------------------------------------------------
|
|
template< typename T, class A >
|
|
int CUtlVector<T, A>::GetOffset(const T& src) const
|
|
{
|
|
for(int i = 0; i < Count(); ++i) {
|
|
if(Element(i) == src)
|
|
return i;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
template< typename T, class A >
|
|
void CUtlVector<T, A>::FillWithValue(const T& src)
|
|
{
|
|
for(int i = 0; i < Count(); i++) {
|
|
Element(i) = src;
|
|
}
|
|
}
|
|
|
|
template< typename T, class A >
|
|
bool CUtlVector<T, A>::HasElement(const T& src) const
|
|
{
|
|
return (GetOffset(src) >= 0);
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Element removal
|
|
//-----------------------------------------------------------------------------
|
|
template< typename T, class A >
|
|
void CUtlVector<T, A>::FastRemove(int elem)
|
|
{
|
|
_Utl_Vector_assert(IsValidIndex(elem));
|
|
|
|
Destruct(&Element(elem));
|
|
if(m_Size > 0) {
|
|
if(elem != m_Size - 1)
|
|
memcpy(&Element(elem), &Element(m_Size - 1), sizeof(T));
|
|
--m_Size;
|
|
}
|
|
}
|
|
|
|
template< typename T, class A >
|
|
void CUtlVector<T, A>::Remove(int elem)
|
|
{
|
|
Destruct(&Element(elem));
|
|
ShiftElementsLeft(elem);
|
|
--m_Size;
|
|
}
|
|
|
|
template< typename T, class A >
|
|
bool CUtlVector<T, A>::FindAndRemove(const T& src)
|
|
{
|
|
int elem = GetOffset(src);
|
|
if(elem != -1) {
|
|
Remove(elem);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
template< typename T, class A >
|
|
bool CUtlVector<T, A>::FindAndFastRemove(const T& src)
|
|
{
|
|
int elem = GetOffset(src);
|
|
if(elem != -1) {
|
|
FastRemove(elem);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
template< typename T, class A >
|
|
void CUtlVector<T, A>::RemoveMultiple(int elem, int num)
|
|
{
|
|
_Utl_Vector_assert(elem >= 0);
|
|
_Utl_Vector_assert(elem + num <= Count());
|
|
|
|
for(int i = elem + num; --i >= elem; )
|
|
Destruct(&Element(i));
|
|
|
|
ShiftElementsLeft(elem, num);
|
|
m_Size -= num;
|
|
}
|
|
|
|
template< typename T, class A >
|
|
void CUtlVector<T, A>::RemoveMultipleFromHead(int num)
|
|
{
|
|
_Utl_Vector_assert(num <= Count());
|
|
|
|
for(int i = num; --i >= 0; )
|
|
Destruct(&Element(i));
|
|
|
|
ShiftElementsLeft(0, num);
|
|
m_Size -= num;
|
|
}
|
|
|
|
template< typename T, class A >
|
|
void CUtlVector<T, A>::RemoveMultipleFromTail(int num)
|
|
{
|
|
_Utl_Vector_assert(num <= Count());
|
|
|
|
for(int i = m_Size - num; i < m_Size; i++)
|
|
Destruct(&Element(i));
|
|
|
|
m_Size -= num;
|
|
}
|
|
|
|
template< typename T, class A >
|
|
void CUtlVector<T, A>::RemoveAll()
|
|
{
|
|
for(int i = m_Size; --i >= 0; ) {
|
|
Destruct(&Element(i));
|
|
}
|
|
|
|
m_Size = 0;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Memory deallocation
|
|
//-----------------------------------------------------------------------------
|
|
|
|
template< typename T, class A >
|
|
inline void CUtlVector<T, A>::Purge()
|
|
{
|
|
RemoveAll();
|
|
m_Memory.Purge();
|
|
ResetDbgInfo();
|
|
}
|
|
|
|
|
|
template< typename T, class A >
|
|
inline void CUtlVector<T, A>::PurgeAndDeleteElements()
|
|
{
|
|
for(int i = 0; i < m_Size; i++) {
|
|
delete Element(i);
|
|
}
|
|
Purge();
|
|
}
|
|
|
|
template< typename T, class A >
|
|
inline void CUtlVector<T, A>::Compact()
|
|
{
|
|
m_Memory.Purge(m_Size);
|
|
}
|
|
|
|
template< typename T, class A >
|
|
inline int CUtlVector<T, A>::NumAllocated() const
|
|
{
|
|
return m_Memory.NumAllocated();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Data and memory validation
|
|
//-----------------------------------------------------------------------------
|
|
#ifdef DBGFLAG_VALIDATE
|
|
template< typename T, class A >
|
|
void CUtlVector<T, A>::Validate(CValidator &validator, char *pchName)
|
|
{
|
|
validator.Push(typeid(*this).name(), this, pchName);
|
|
|
|
m_Memory.Validate(validator, "m_Memory");
|
|
|
|
validator.Pop();
|
|
}
|
|
#endif // DBGFLAG_VALIDATE
|
|
|
|
// A vector class for storing pointers, so that the elements pointed to by the pointers are deleted
|
|
// on exit.
|
|
template<class T> class CUtlVectorAutoPurge : public CUtlVector< T, CUtlMemory< T, int> >
|
|
{
|
|
public:
|
|
~CUtlVectorAutoPurge(void)
|
|
{
|
|
this->PurgeAndDeleteElements();
|
|
}
|
|
};
|
|
|
|
// easy string list class with dynamically allocated strings. For use with V_SplitString, etc.
|
|
// Frees the dynamic strings in destructor.
|
|
class CUtlStringList : public CUtlVectorAutoPurge< char *>
|
|
{
|
|
public:
|
|
void CopyAndAddToTail(char const *pString) // clone the string and add to the end
|
|
{
|
|
char *pNewStr = new char[1 + strlen(pString)];
|
|
strcpy_s(pNewStr, 1 + strlen(pString), pString);
|
|
AddToTail(pNewStr);
|
|
}
|
|
|
|
static int __cdecl SortFunc(char * const * sz1, char * const * sz2)
|
|
{
|
|
return strcmp(*sz1, *sz2);
|
|
}
|
|
|
|
}; |