char* GetBuffer(size_t nLength = (size_t)-1)
{
size_t nNewLength = (nLength == (size_t)-1)?m_pData->GetLength():nLength;
if ( !m_pData->Unique() || (nNewLength > m_pData->GetSize()) )
{
StringData<char>* pNewData = new StringData<char>(nNewLength+1);
memcpy(pNewData->GetData(), m_pData->GetData(), m_pData->GetLength());
pNewData->SetLength(m_pData->GetLength());
FreeData();
m_pData = pNewData;
}
return m_pData->GetData();
}
