class TSubString


TString

Basic string class.

Cannot be stored in a TCollection... use TObjString instead.

Function Members (Methods)

public:

	TSubString(const TSubString& s)
	~TSubString()
const char*	Data() const
Bool_t	IsNull() const
Ssiz_t	Length() const
int	operator!() const
char&	operator()(Ssiz_t i)
char	operator()(Ssiz_t i) const
TSubString&	operator=(const char* s)
TSubString&	operator=(const TString& s)
TSubString&	operator=(const TSubString& s)
char&	operator[](Ssiz_t i)
char	operator[](Ssiz_t i) const
Ssiz_t	Start() const
TString&	String()
void	ToLower()
void	ToUpper()

protected:

void	AssertElement(Ssiz_t i) const
void	SubStringError(Ssiz_t, Ssiz_t, Ssiz_t) const

private:

TSubString(const TString& s, Ssiz_t start, Ssiz_t len)

Data Members

private:

Ssiz_t	fBegin	Index of starting character
Ssiz_t	fExtent	Length of TSubString
TString&	fStr	Referenced string

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

const char * Data()

{ return fStr.Data() + fBegin; }

char operator[](Ssiz_t i)

 Access to elements of sub-string with bounds checking

{ AssertElement(i); return fStr.fData[fBegin+i]; }

char operator()(Ssiz_t i)

{ return fStr.fData[fBegin+i]; }

TSubString & operator=(const TSubString &s)

{ fStr = s.fStr; fBegin = s.fBegin; fExtent = s.fExtent; return *this; }

Ssiz_t Length()

{ return fNchars; }

char & operator[](Ssiz_t i)

{ return ((char*)(this+1))[i]; }

TSubString(const TString& s, Ssiz_t start, Ssiz_t len)

 NB: the only constructor is private

void SubStringError(Ssiz_t , Ssiz_t , Ssiz_t ) const

void AssertElement(Ssiz_t i) const

TSubString(const TSubString& s)

{ }

TSubString & operator=(const char *s)

TSubString & operator=(const TString &s)

char & operator()(Ssiz_t i)

Ssiz_t Start()

{ return fBegin; }

void ToLower()

void ToUpper()

Bool_t IsNull()

 For detecting null substrings

{ return fBegin == kNPOS; }

int operator!()

{ return fBegin == kNPOS; }

Last update: Mon Jun 25 20:12:18 2007

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