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| 1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| 6 | 6 |
| 7 #include "core/fxcrt/include/fx_basic.h" | 7 #include "core/fxcrt/fx_basic.h" |
| 8 #include "third_party/base/numerics/safe_math.h" | 8 #include "third_party/base/numerics/safe_math.h" |
| 9 | 9 |
| 10 CFX_BasicArray::CFX_BasicArray(int unit_size) | 10 CFX_BasicArray::CFX_BasicArray(int unit_size) |
| 11 : m_pData(nullptr), m_nSize(0), m_nMaxSize(0) { | 11 : m_pData(nullptr), m_nSize(0), m_nMaxSize(0) { |
| 12 if (unit_size < 0 || unit_size > (1 << 28)) { | 12 if (unit_size < 0 || unit_size > (1 << 28)) { |
| 13 m_nUnitSize = 4; | 13 m_nUnitSize = 4; |
| 14 } else { | 14 } else { |
| 15 m_nUnitSize = unit_size; | 15 m_nUnitSize = unit_size; |
| 16 } | 16 } |
| 17 } | 17 } |
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| 127 FXSYS_memcpy(m_pData + nStartIndex * m_nUnitSize, pNewArray->m_pData, | 127 FXSYS_memcpy(m_pData + nStartIndex * m_nUnitSize, pNewArray->m_pData, |
| 128 pNewArray->m_nSize * m_nUnitSize); | 128 pNewArray->m_nSize * m_nUnitSize); |
| 129 return TRUE; | 129 return TRUE; |
| 130 } | 130 } |
| 131 const void* CFX_BasicArray::GetDataPtr(int index) const { | 131 const void* CFX_BasicArray::GetDataPtr(int index) const { |
| 132 if (index < 0 || index >= m_nSize || !m_pData) { | 132 if (index < 0 || index >= m_nSize || !m_pData) { |
| 133 return nullptr; | 133 return nullptr; |
| 134 } | 134 } |
| 135 return m_pData + index * m_nUnitSize; | 135 return m_pData + index * m_nUnitSize; |
| 136 } | 136 } |
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