73 lines
1.8 KiB
C++
73 lines
1.8 KiB
C++
//-----------------------------------------------------------------------------+
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// Copyright (C), 1998-2007, SH Software Co. Ltd.
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// = FileName : BitTable.h
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// = Version : ver2.0
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// = Author : zjq
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// = CreateDate : 2002-09-09
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// = Description: 类的声明,位数组，以位或位单元的模式来进行数据读写和内存分配，用于大规模控制矩阵
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// = Maintainers:
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//
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//-----------------------------------------------------------------------------+
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#ifndef _BITTABLE_H_
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#define _BITTABLE_H_
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class GEOAPI BitTable
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{
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public:
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BitTable(long unitNum, long unitSize = 1);
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BitTable(void* p, long byteSize, bool bClient = true);
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BitTable& operator = (const BitTable& bTable);
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void Attach(long byteSize, char *p);
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char* Detach();
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~BitTable();
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//位数转字节数
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static long BitToByte(long bitNum);
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bool IsValidIndex(long i) const;
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long GetLength() const;
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long GetByteSize() const;
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long GetBitSize() const;
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void SetUnitSize(long size);
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long GetUnitSize() const;
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//新单元数
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void Realloc(long unitNum);
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//bit read/write,使用位索引，非单元索引!
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bool operator[](long i);
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void Set(long i);
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void Reset(long i);
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//unit read/write
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//取单元值
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long GetValue(long i) const;
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//单元赋值
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void SetValue(long i,char value);
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void SetAll(char value);
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void SetAll();
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void Reset();
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//data transfer
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operator char() const;
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operator int() const;
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operator float() const;
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operator double() const;
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operator const char*() const;
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operator const int*() const;
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operator const float*() const;
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operator const double*() const;
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protected:
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//位定位
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void BitToByte(long i, long& byteIndex,long& bitIndex) const;
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//单元定位
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void UnitToByte(long i, long& byteIndex,long& bitIndex) const;
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protected:
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long length; //unit num
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long unit; //unit length; 仅支持1,2,4
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char *pData;
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bool bOwner; //是否数据代理
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};
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#endif
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