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84 lines
1.6 KiB
C++
84 lines
1.6 KiB
C++
/**
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* @file WVariant.h
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* @brief 封装数据底层数据类型
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* @author
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* @time
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*/
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#pragma once
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//#include <boost/any.hpp>
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#include <limits>
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#define WDATATYPE_STRING 0 // 字符串
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#define WDATATYPE_DOUBLE 1 // 浮点型
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#define WDATATYPE_INT 2 // 整型
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#define WDATATYPE_BOOL 3 // bool
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#define WDATATYPE_TIME 4 // 时间
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#define WDATATYPE_NULL 255 // 空类型
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#define NULL_FLT FLT_MAX
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#define NULL_INT INT_MAX
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namespace wuya
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{
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class AFX_EXT_CLASS WVariant
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{
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public:
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WVariant(void);
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WVariant(double dValue);
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WVariant(bool bValue);
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WVariant(int iValue);
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WVariant(LPCTSTR strValue);
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WVariant(const CString& strValue);
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WVariant(const COleDateTime& time);
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WVariant(const WVariant& variant);
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~WVariant(void);
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WVariant& operator= (const WVariant& varValue);
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void SetValue(double dValue);
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void SetValue(bool bValue);
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void SetValue(int iValue);
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void SetValue(LPCTSTR strValue);
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void SetValue(const COleDateTime& time);
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void GetValue(double& dValue);
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void GetValue(bool& bValue);
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void GetValue(int& iValue);
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void GetValue(CString& strValue);
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void GetValue(COleDateTime& time);
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/** @brief 设置类型为WDATATYPE_NULL */
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void SetNull();
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/** @brief 判断类型是否为空 */
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BOOL IsNull();
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void SetType(BYTE type); // 设置为新类型，值设置为空
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void ChangeType(BYTE type); // 转换为新类型，值保留
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static BOOL IsNullDblValue(double dValue);
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static BOOL IsNullIntValue(int iValue);
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static double GetNullDblValue();
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static int GetNullIntValue();
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private:
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void ChangeToString();
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void ChangeToDbl();
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void ChangeToInt();
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void ChangeToBool();
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void ChangeToTime();
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private:
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BYTE m_byteType; // 类型
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//boost::any m_anyValue; // 存储数据
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};
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}; |