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sho1get |
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#pragma once |
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////////////////////////////////////////////////////////////////////////// |
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template <class TYPE, class ARG_TYPE = TYPE> |
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class CSortArray : public CArray <TYPE, ARG_TYPE> |
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{ |
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public: |
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CSortArray() {} |
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virtual ~CSortArray() {} |
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void QuickSort(BOOL bAscending = TRUE); |
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protected: |
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BOOL doQuickSort(TYPE *pArr, int nSize, BOOL bAscending = TRUE); |
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void doQuickSortRecursive(TYPE *pArr, int d, int h, BOOL bAscending); |
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}; |
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////////////////////////////////////////////////////////////////////////// |
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template <class TYPE, class ARG_TYPE> |
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inline void CSortArray<TYPE, ARG_TYPE>::doQuickSortRecursive(TYPE *pArr, int d, int h, BOOL bAscending) |
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{ |
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int i, j, pvt; |
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TYPE src, tmp; |
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i = h; |
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j = d; |
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pvt = static_cast<UINT>((d + h) / 2); |
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src = pArr[pvt]; |
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do |
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{ |
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if (bAscending) |
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{ |
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while (pArr[j] < src) j++; |
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while (pArr[i] > src) i--; |
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} |
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else |
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{ |
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while (pArr[j] > src) j++; |
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while (pArr[i] < src) i--; |
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} |
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if (i >= j) |
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{ |
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if (i != j) |
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{ |
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tmp = pArr[i]; |
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pArr[i] = pArr[j]; |
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pArr[j] = tmp; |
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} |
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i--; |
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j++; |
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} |
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} |
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while (j <= i); |
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if (d < i) doQuickSortRecursive(pArr, d, i, bAscending); |
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if (j < h) doQuickSortRecursive(pArr, j, h, bAscending); |
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} |
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////////////////////////////////////////////////////////////////////////// |
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template <class TYPE, class ARG_TYPE> |
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inline BOOL CSortArray<TYPE, ARG_TYPE>::doQuickSort(TYPE *pArr, int nSize, BOOL bAscending) |
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{ |
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BOOL rc = TRUE; |
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int low, high; |
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if (nSize > 1) |
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{ |
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try |
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{ |
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low = 0; |
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high = nSize - 1; |
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doQuickSortRecursive(pArr, low, high, bAscending); |
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} |
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catch (...) |
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{ |
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::SetLastError(ERROR_INVALID_PARAMETER); |
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rc = FALSE; |
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} |
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} |
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else |
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{ |
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::SetLastError(ERROR_INVALID_PARAMETER); |
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rc = FALSE; |
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} |
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return rc; |
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} |
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////////////////////////////////////////////////////////////////////////// |
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template <class TYPE, class ARG_TYPE> |
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inline void CSortArray<TYPE, ARG_TYPE>::QuickSort(BOOL bAscending/* = TRUE*/) |
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{ |
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if (GetSize() > 1) |
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{ |
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doQuickSort(GetData(), GetSize(), bAscending); |
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} |
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} |
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////////////////////////////////////////////////////////////////////////// |
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