75 lines
1.5 KiB
C++
75 lines
1.5 KiB
C++
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//
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// StrArray.cpp
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//
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// A very simple string array implementation, intended to be small
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// rather than scalable or particularly fast.
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//
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// History:
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//
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// 10/05/1999 KenSh Created
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//
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#include "stdafx.h"
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#include "StrArray.h"
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#include "Util.h"
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CStringArray::CStringArray()
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{
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m_prgpStrings = NULL;
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m_prgItemData = NULL;
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m_cStrings = 0;
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}
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CStringArray::~CStringArray()
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{
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RemoveAll();
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}
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void CStringArray::RemoveAll()
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{
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for (int i = 0; i < m_cStrings; i++)
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free(m_prgpStrings[i]);
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free(m_prgpStrings);
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free(m_prgItemData);
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m_prgpStrings = NULL;
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m_prgItemData = NULL;
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m_cStrings = 0;
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}
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int CStringArray::Add(LPCTSTR pszNewElement)
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{
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LPTSTR* ppsz = (LPTSTR*)realloc(m_prgpStrings, (1+m_cStrings) * sizeof(LPTSTR));
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DWORD* pdw = (DWORD*)realloc(m_prgItemData, (1+m_cStrings) * sizeof(DWORD));
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// update whatever was successfully reallocated
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if (ppsz)
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m_prgpStrings = ppsz;
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if (pdw)
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m_prgItemData = pdw;
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// if both allocated, we have room.
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if (ppsz && pdw)
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{
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int nIndex = m_cStrings++;
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m_prgpStrings[nIndex] = lstrdup(pszNewElement);
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m_prgItemData[nIndex] = 0;
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return nIndex;
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}
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return -1;
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}
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void CStringArray::RemoveAt(int nIndex)
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{
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ASSERT(nIndex >= 0 && nIndex < m_cStrings);
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free(m_prgpStrings[nIndex]);
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m_cStrings--;
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for ( ; nIndex < m_cStrings; nIndex++)
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{
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m_prgpStrings[nIndex] = m_prgpStrings[nIndex+1];
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m_prgItemData[nIndex] = m_prgItemData[nIndex+1];
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}
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}
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