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/**************** Value H Declares Source Code File (.H) ***************/
/* Name: VALUE.H Version 1.6 */
/* */
/* (C) Copyright to the author Olivier BERTRAND 2001-2012 */
/* */
/* This file contains the VALUE and derived classes declares. */
/***********************************************************************/
/***********************************************************************/
/* Include required application header files */
/* assert.h is header required when using the assert function. */
/* block.h is header containing Block global declarations. */
/***********************************************************************/
#ifndef __VALUE__H__
#define __VALUE__H__
#include "assert.h"
#include "block.h"
/***********************************************************************/
/* Types used in some class definitions. */
/***********************************************************************/
enum CONV {CNV_ANY = 0, /* Convert to any type */
CNV_CHAR = 1, /* Convert to character type */
CNV_NUM = 2}; /* Convert to numeric type */
/***********************************************************************/
/* Types used in some class definitions. */
/***********************************************************************/
class CONSTANT; // For friend setting
typedef struct _datpar *PDTP; // For DTVAL
/***********************************************************************/
/* Utilities used to test types and to allocated values. */
/***********************************************************************/
int GetPLGType(int);
short GetSQLType(int);
int GetSQLCType(int);
PVAL AllocateValue(PGLOBAL, void *, short);
// Exported functions
DllExport PSZ GetTypeName(int);
DllExport int GetTypeSize(int, int);
DllExport int TranslateSQLType(int stp, int prec, int& len);
DllExport char *GetFormatType(int);
DllExport int GetFormatType(char);
DllExport int GetDBType(int);
DllExport bool IsTypeChar(int type);
DllExport bool IsTypeNum(int type);
DllExport int ConvertType(int, int, CONV, bool match = false);
DllExport PVAL AllocateValue(PGLOBAL, PVAL, int = TYPE_VOID);
DllExport PVAL AllocateValue(PGLOBAL, int, int len = 0, int prec = 2,
PSZ dom = NULL, PCATLG cat = NULL);
/***********************************************************************/
/* Class VALUE represents a constant or variable of any valid type. */
/***********************************************************************/
class DllExport VALUE : public BLOCK {
friend class CONSTANT; // The only object allowed to use SetConstFormat
public:
// Constructors
// Implementation
virtual bool IsTypeNum(void) = 0;
virtual bool IsZero(void) = 0;
virtual bool IsCi(void) {return false;}
virtual void Reset(void) = 0;
virtual int GetSize(void) = 0;
virtual int GetValLen(void) = 0;
virtual int GetValPrec(void) = 0;
virtual int GetLength(void) {return 1;}
virtual PSZ GetCharValue(void) {assert(false); return NULL;}
virtual short GetShortValue(void) {assert(false); return 0;}
virtual int GetIntValue(void) = 0;
virtual double GetFloatValue(void) = 0;
virtual void *GetTo_Val(void) = 0;
int GetType(void) {return Type;}
int GetClen(void) {return Clen;}
void SetGlobal(PGLOBAL g) {Global = g;}
// Methods
virtual bool SetValue_pval(PVAL valp, bool chktype = false) = 0;
virtual void SetValue_char(char *p, int n) = 0;
virtual void SetValue_psz(PSZ s) = 0;
virtual void SetValue_bool(bool b) {assert(false);}
virtual void SetValue(short i) {assert(false);}
virtual void SetValue(int n) {assert(false);}
virtual void SetValue(double f) {assert(false);}
virtual void SetValue_pvblk(PVBLK blk, int n) = 0;
virtual void SetBinValue(void *p) = 0;
virtual bool GetBinValue(void *buf, int buflen, bool go) = 0;
virtual void GetBinValue(void *buf, int len) = 0;
virtual bool IsEqual(PVAL vp, bool chktype) = 0;
virtual int CompareValue(PVAL vp) = 0;
virtual BYTE TestValue(PVAL vp);
virtual void Divide(int cnt) {assert(false);}
virtual void StdVar(PVAL vp, int cnt, bool b) {assert(false);}
virtual void Add(int lv) {assert(false);}
virtual void Add(PVAL vp) {assert(false);}
virtual void Add(PVBLK vbp, int i) {assert(false);}
virtual void Add(PVBLK vbp, int j, int k) {assert(false);}
virtual void Add(PVBLK vbp, int *x, int j, int k) {assert(false);}
virtual void AddSquare(PVAL vp) {assert(false);}
virtual void AddSquare(PVBLK vbp, int i) {assert(false);}
virtual void AddSquare(PVBLK vbp, int j, int k) {assert(false);}
virtual void Times(PVAL vp) {assert(false);}
virtual void SetMin(PVAL vp) = 0;
virtual void SetMin(PVBLK vbp, int i) = 0;
virtual void SetMin(PVBLK vbp, int j, int k) = 0;
virtual void SetMin(PVBLK vbp, int *x, int j, int k) = 0;
virtual void SetMax(PVAL vp) = 0;
virtual void SetMax(PVBLK vbp, int i) = 0;
virtual void SetMax(PVBLK vbp, int j, int k) = 0;
virtual void SetMax(PVBLK vbp, int *x, int j, int k) = 0;
virtual char *ShowValue(char *buf, int len = 0) = 0;
virtual char *GetCharString(char *p) = 0;
virtual char *GetShortString(char *p, int n) {return "#####";}
virtual char *GetIntString(char *p, int n) = 0;
virtual char *GetFloatString(char *p, int n, int prec) = 0;
virtual bool Compute(PGLOBAL g, PVAL *vp, int np, OPVAL op) = 0;
virtual int GetTime(PGLOBAL g, PVAL *vp, int np) = 0;
virtual bool FormatValue(PVAL vp, char *fmt) = 0;
char *ShowTypedValue(PGLOBAL g, char *buf, int typ, int n, int p);
protected:
virtual bool SetConstFormat(PGLOBAL, FORMAT&) = 0;
// Constructor used by derived classes
VALUE(int type) : Type(type) {}
// Members
PGLOBAL Global; // To reduce arglist
//const int Type; // The value type
int Type; // The value type
int Clen; // Internal value length
}; // end of class VALUE
/***********************************************************************/
/* Class STRING: represents zero terminated strings. */
/***********************************************************************/
class STRING : public VALUE {
friend class SFROW;
public:
// Constructors
STRING(PSZ s);
STRING(PGLOBAL g, PSZ s, int n, int c = 0);
STRING(PGLOBAL g, short i);
STRING(PGLOBAL g, int n);
STRING(PGLOBAL g, double f);
// Implementation
virtual bool IsTypeNum(void) {return false;}
virtual bool IsZero(void) {return (Strp) ? strlen(Strp) == 0 : true;}
virtual bool IsCi(void) {return Ci;}
virtual void Reset(void) {*Strp = '\0';}
virtual int GetValLen(void) {return Len;}
virtual int GetValPrec() {return (Ci) ? 1 : 0;}
virtual int GetLength(void) {return Len;}
virtual int GetSize(void) {return (Strp) ? strlen(Strp) : 0;}
virtual PSZ GetCharValue(void) {return Strp;}
virtual short GetShortValue(void) {return (short)atoi(Strp);}
virtual int GetIntValue(void) {return atol(Strp);}
virtual double GetFloatValue(void) {return atof(Strp);}
virtual void *GetTo_Val(void) {return Strp;}
// Methods
virtual bool SetValue_pval(PVAL valp, bool chktype);
virtual void SetValue_char(char *p, int n);
virtual void SetValue_psz(PSZ s);
virtual void SetValue_pvblk(PVBLK blk, int n);
virtual void SetValue(short i);
virtual void SetValue(int n);
virtual void SetValue(double f);
virtual void SetBinValue(void *p);
virtual bool GetBinValue(void *buf, int buflen, bool go);
virtual void GetBinValue(void *buf, int len);
virtual char *ShowValue(char *buf, int);
virtual char *GetCharString(char *p);
virtual char *GetShortString(char *p, int n);
virtual char *GetIntString(char *p, int n);
virtual char *GetFloatString(char *p, int n, int prec = -1);
virtual bool IsEqual(PVAL vp, bool chktype);
virtual int CompareValue(PVAL vp);
virtual BYTE TestValue(PVAL vp);
virtual void SetMin(PVAL vp);
virtual void SetMin(PVBLK vbp, int i);
virtual void SetMin(PVBLK vbp, int j, int k);
virtual void SetMin(PVBLK vbp, int *x, int j, int k);
virtual void SetMax(PVAL vp);
virtual void SetMax(PVBLK vbp, int i);
virtual void SetMax(PVBLK vbp, int j, int k);
virtual void SetMax(PVBLK vbp, int *x, int j, int k);
virtual bool SetConstFormat(PGLOBAL, FORMAT&);
virtual bool Compute(PGLOBAL g, PVAL *vp, int np, OPVAL op);
virtual int GetTime(PGLOBAL g, PVAL *vp, int np);
virtual bool FormatValue(PVAL vp, char *fmt);
virtual void Print(PGLOBAL g, FILE *, uint);
virtual void Print(PGLOBAL g, char *, uint);
protected:
// Default constructor not to be used
STRING(void) : VALUE(TYPE_ERROR) {}
// Members
PSZ Strp;
int Len;
bool Ci; // true if case insensitive
}; // end of class STRING
/***********************************************************************/
/* Class SHVAL: represents short integer values. */
/***********************************************************************/
class SHVAL : public VALUE {
public:
// Constructors
SHVAL(PSZ s);
SHVAL(short n);
SHVAL(int n);
SHVAL(double f);
// Implementation
virtual bool IsTypeNum(void) {return true;}
virtual bool IsZero(void) {return Sval == 0;}
virtual void Reset(void) {Sval = 0;}
virtual int GetValLen(void);
virtual int GetValPrec() {return 0;}
virtual int GetSize(void) {return sizeof(short);}
//virtual PSZ GetCharValue(void) {}
virtual short GetShortValue(void) {return Sval;}
virtual int GetIntValue(void) {return (int)Sval;}
virtual double GetFloatValue(void) {return (double)Sval;}
virtual void *GetTo_Val(void) {return &Sval;}
// Methods
virtual bool SetValue_pval(PVAL valp, bool chktype);
virtual void SetValue_char(char *p, int n);
virtual void SetValue_psz(PSZ s);
virtual void SetValue_bool(bool b) {Sval = (b) ? 1 : 0;}
virtual void SetValue(short i) {Sval = i;}
virtual void SetValue(int n) {Sval = (short)n;}
virtual void SetValue_pvblk(PVBLK blk, int n);
virtual void SetBinValue(void *p);
virtual bool GetBinValue(void *buf, int buflen, bool go);
virtual void GetBinValue(void *buf, int len);
virtual char *ShowValue(char *buf, int);
virtual char *GetCharString(char *p);
virtual char *GetShortString(char *p, int n);
virtual char *GetIntString(char *p, int n);
virtual char *GetFloatString(char *p, int n, int prec = -1);
virtual bool IsEqual(PVAL vp, bool chktype);
virtual int CompareValue(PVAL vp);
virtual void Divide(int cnt);
virtual void StdVar(PVAL vp, int cnt, bool b);
virtual void Add(int lv) {Sval += (short)lv;}
virtual void Add(PVAL vp);
virtual void Add(PVBLK vbp, int i);
virtual void Add(PVBLK vbp, int j, int k);
virtual void Add(PVBLK vbp, int *x, int j, int k);
virtual void AddSquare(PVAL vp);
virtual void AddSquare(PVBLK vbp, int i);
virtual void AddSquare(PVBLK vbp, int j, int k);
virtual void Times(PVAL vp);
virtual void SetMin(PVAL vp);
virtual void SetMin(PVBLK vbp, int i);
virtual void SetMin(PVBLK vbp, int j, int k);
virtual void SetMin(PVBLK vbp, int *x, int j, int k);
virtual void SetMax(PVAL vp);
virtual void SetMax(PVBLK vbp, int i);
virtual void SetMax(PVBLK vbp, int j, int k);
virtual void SetMax(PVBLK vbp, int *x, int j, int k);
virtual bool SetConstFormat(PGLOBAL, FORMAT&);
virtual bool Compute(PGLOBAL g, PVAL *vp, int np, OPVAL op);
virtual int GetTime(PGLOBAL g, PVAL *vp, int np) {return 0;}
virtual bool FormatValue(PVAL vp, char *fmt);
virtual void Print(PGLOBAL g, FILE *, uint);
virtual void Print(PGLOBAL g, char *, uint);
protected:
short SafeAdd(short n1, short n2);
short SafeMult(short n1, short n2);
// Default constructor not to be used
SHVAL(void) : VALUE(TYPE_ERROR) {}
// Members
short Sval;
}; // end of class SHVAL
/***********************************************************************/
/* Class INTVAL: represents int integer values. */
/***********************************************************************/
class DllExport INTVAL : public VALUE {
public:
// Constructors
INTVAL(PSZ s);
INTVAL(short i);
INTVAL(int n);
INTVAL(double f);
// Implementation
virtual bool IsTypeNum(void) {return true;}
virtual bool IsZero(void) {return Ival == 0;}
virtual void Reset(void) {Ival = 0;}
virtual int GetValLen(void);
virtual int GetValPrec() {return 0;}
virtual int GetSize(void) {return sizeof(int);}
//virtual PSZ GetCharValue(void) {}
virtual short GetShortValue(void) {return (short)Ival;}
virtual int GetIntValue(void) {return Ival;}
virtual double GetFloatValue(void) {return (double)Ival;}
virtual void *GetTo_Val(void) {return &Ival;}
// Methods
virtual bool SetValue_pval(PVAL valp, bool chktype);
virtual void SetValue_char(char *p, int n);
virtual void SetValue_psz(PSZ s);
virtual void SetValue_bool(bool b) {Ival = (b) ? 1 : 0;}
virtual void SetValue(short i) {Ival = (int)i;}
virtual void SetValue(int n) {Ival = n;}
virtual void SetValue(double f) {Ival = (int)f;}
virtual void SetValue_pvblk(PVBLK blk, int n);
virtual void SetBinValue(void *p);
virtual bool GetBinValue(void *buf, int buflen, bool go);
virtual void GetBinValue(void *buf, int len);
virtual char *ShowValue(char *buf, int);
virtual char *GetCharString(char *p);
virtual char *GetShortString(char *p, int n);
virtual char *GetIntString(char *p, int n);
virtual char *GetFloatString(char *p, int n, int prec = -1);
virtual bool IsEqual(PVAL vp, bool chktype);
virtual int CompareValue(PVAL vp);
virtual void Divide(int cnt);
virtual void StdVar(PVAL vp, int cnt, bool b);
virtual void Add(int lv) {Ival += lv;}
virtual void Add(PVAL vp);
virtual void Add(PVBLK vbp, int i);
virtual void Add(PVBLK vbp, int j, int k);
virtual void Add(PVBLK vbp, int *x, int j, int k);
virtual void AddSquare(PVAL vp);
virtual void AddSquare(PVBLK vbp, int i);
virtual void AddSquare(PVBLK vbp, int j, int k);
virtual void Times(PVAL vp);
virtual void SetMin(PVAL vp);
virtual void SetMin(PVBLK vbp, int i);
virtual void SetMin(PVBLK vbp, int j, int k);
virtual void SetMin(PVBLK vbp, int *x, int j, int k);
virtual void SetMax(PVAL vp);
virtual void SetMax(PVBLK vbp, int i);
virtual void SetMax(PVBLK vbp, int j, int k);
virtual void SetMax(PVBLK vbp, int *x, int j, int k);
virtual bool SetConstFormat(PGLOBAL, FORMAT&);
virtual bool Compute(PGLOBAL g, PVAL *vp, int np, OPVAL op);
virtual int GetTime(PGLOBAL g, PVAL *vp, int np);
virtual bool FormatValue(PVAL vp, char *fmt);
virtual void Print(PGLOBAL g, FILE *, uint);
virtual void Print(PGLOBAL g, char *, uint);
protected:
int SafeAdd(int n1, int n2);
int SafeMult(int n1, int n2);
// Default constructor not to be used
INTVAL(void) : VALUE(TYPE_ERROR) {}
// Members
int Ival;
}; // end of class INTVAL
/***********************************************************************/
/* Class DTVAL: represents a time stamp value. */
/***********************************************************************/
class DllExport DTVAL : public INTVAL {
public:
// Constructors
DTVAL(PGLOBAL g, int n, int p, PSZ fmt);
DTVAL(PGLOBAL g, PSZ s, int n);
DTVAL(PGLOBAL g, short i);
DTVAL(PGLOBAL g, int n);
DTVAL(PGLOBAL g, double f);
// Implementation
virtual bool SetValue_pval(PVAL valp, bool chktype);
virtual void SetValue_char(char *p, int n);
virtual void SetValue_psz(PSZ s);
virtual void SetValue_pvblk(PVBLK blk, int n);
virtual char *GetCharString(char *p);
virtual char *ShowValue(char *buf, int);
virtual bool Compute(PGLOBAL g, PVAL *vp, int np, OPVAL op);
virtual int GetTime(PGLOBAL g, PVAL *vp, int np);
virtual bool FormatValue(PVAL vp, char *fmt);
bool SetFormat(PGLOBAL g, PSZ fmt, int len, int year = 0);
bool SetFormat(PGLOBAL g, PVAL valp);
bool IsFormatted(void) {return Pdtp != NULL;}
bool GetTmMember(OPVAL op, int& mval);
bool DateDiff(DTVAL *dtp, OPVAL op, int& tdif);
bool MakeTime(struct tm *ptm);
static void SetTimeShift(void);
static int GetShift(void) {return Shift;}
// Methods
bool MakeDate(PGLOBAL g, int *val, int nval);
bool WeekNum(PGLOBAL g, int& nval);
struct tm *GetGmTime(void);
protected:
// Default constructor not to be used
DTVAL(void) : INTVAL() {}
// Members
static int Shift; // Time zone shift in seconds
PDTP Pdtp; // To the DATPAR structure
char *Sdate; // Utility char buffer
//struct tm *DateTime; // Utility (not used yet)
int DefYear; // Used by ExtractDate
int Len; // Used by CHAR scalar function
}; // end of class DTVAL
/***********************************************************************/
/* Class DFVAL: represents double float values. */
/***********************************************************************/
class DFVAL : public VALUE {
public:
// Constructors
DFVAL(PSZ s, int prec = 2);
DFVAL(short i, int prec = 2);
DFVAL(int n, int prec = 2);
DFVAL(double f, int prec = 2);
// Implementation
virtual bool IsTypeNum(void) {return true;}
virtual bool IsZero(void) {return Fval == 0.0;}
virtual void Reset(void) {Fval = 0.0;}
virtual int GetValLen(void);
virtual int GetValPrec() {return Prec;}
virtual int GetSize(void) {return sizeof(double);}
//virtual PSZ GetCharValue(void) {}
virtual short GetShortValue(void) {return (short)Fval;}
virtual int GetIntValue(void) {return (int)Fval;}
virtual double GetFloatValue(void) {return Fval;}
virtual void *GetTo_Val(void) {return &Fval;}
void SetPrec(int prec) {Prec = prec;}
// Methods
virtual bool SetValue_pval(PVAL valp, bool chktype);
virtual void SetValue_char(char *p, int n);
virtual void SetValue_psz(PSZ s);
virtual void SetValue(short i) {Fval = (double)i;}
virtual void SetValue(int n) {Fval = (double)n;}
virtual void SetValue(double f) {Fval = f;}
virtual void SetValue_pvblk(PVBLK blk, int n);
virtual void SetBinValue(void *p);
virtual bool GetBinValue(void *buf, int buflen, bool go);
virtual void GetBinValue(void *buf, int len);
virtual char *ShowValue(char *buf, int);
virtual char *GetCharString(char *p);
virtual char *GetShortString(char *p, int n);
virtual char *GetIntString(char *p, int n);
virtual char *GetFloatString(char *p, int n, int prec = -1);
virtual bool IsEqual(PVAL vp, bool chktype);
virtual int CompareValue(PVAL vp);
virtual void Divide(int cnt);
virtual void StdVar(PVAL vp, int cnt, bool b);
virtual void Add(PVAL vp);
virtual void Add(PVBLK vbp, int i);
virtual void Add(PVBLK vbp, int j, int k);
virtual void Add(PVBLK vbp, int *x, int j, int k);
virtual void AddSquare(PVAL vp);
virtual void AddSquare(PVBLK vbp, int i);
virtual void AddSquare(PVBLK vbp, int j, int k);
virtual void Times(PVAL vp);
virtual void SetMin(PVAL vp);
virtual void SetMin(PVBLK vbp, int i);
virtual void SetMin(PVBLK vbp, int j, int k);
virtual void SetMin(PVBLK vbp, int *x, int j, int k);
virtual void SetMax(PVAL vp);
virtual void SetMax(PVBLK vbp, int i);
virtual void SetMax(PVBLK vbp, int j, int k);
virtual void SetMax(PVBLK vbp, int *x, int j, int k);
virtual bool SetConstFormat(PGLOBAL, FORMAT&);
virtual bool Compute(PGLOBAL g, PVAL *vp, int np, OPVAL op);
virtual int GetTime(PGLOBAL g, PVAL *vp, int np);
virtual bool FormatValue(PVAL vp, char *fmt);
virtual void Print(PGLOBAL g, FILE *, uint);
virtual void Print(PGLOBAL g, char *, uint);
// Specific function
void Divide(double div) {Fval /= div;}
protected:
// Default constructor not to be used
DFVAL(void) : VALUE(TYPE_ERROR) {}
// Members
double Fval;
int Prec;
}; // end of class DFVAL
#endif
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