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RWCSubString Class Reference
[String Processing]

Allows some subsection of an RWCString to be addressed by defining a starting position and an extent. More...

#include <rw/cstring.h>

List of all members.

Public Member Functions

RWCSubString & operator= (const RWCSubString &str)
RWCSubString & operator= (const RWCConstSubString &str)
RWCSubString & operator= (const RWCString &str)
RWCSubString & operator= (const std::string &str)
RWCSubString & operator= (const char *str)
char & operator() (size_t i)
char operator() (size_t i) const
char & operator[] (char i)
char operator[] (char i) const
char & operator[] (signed char i)
char operator[] (signed char i) const
char & operator[] (short i)
char operator[] (short i) const
char & operator[] (int i)
char operator[] (int i) const
char & operator[] (long i)
char operator[] (long i) const
char & operator[] (long long i)
char operator[] (long long i) const
char & operator[] (unsigned char i)
char operator[] (unsigned char i) const
char & operator[] (unsigned short i)
char operator[] (unsigned short i) const
char & operator[] (unsigned int i)
char operator[] (unsigned int i) const
char & operator[] (unsigned long i)
char operator[] (unsigned long i) const
char & operator[] (unsigned long long i)
char operator[] (unsigned long long i) const
int operator! () const
bool isNull () const
size_t length () const
size_t start () const
void toLower ()
void toUpper ()

Related Functions

(Note that these are not member functions.)



bool operator== (const RWCSubString &lhs, const RWCSubString &rhs)
bool operator== (const RWCSubString &lhs, const RWCConstSubString &rhs)
bool operator== (const RWCConstSubString &lhs, const RWCSubString &rhs)
bool operator== (const RWCSubString &lhs, const std::string &rhs)
bool operator== (const std::string &lhs, const RWCSubString &rhs)
bool operator== (const RWCSubString &lhs, const char *rhs)
bool operator== (const char *lhs, const RWCSubString &rhs)
bool operator== (const RWCSubString &lhs, char rhs)
bool operator== (char lhs, const RWCSubString &rhs)
bool operator!= (const RWCSubString &lhs, const RWCSubString &rhs)
bool operator!= (const RWCSubString &lhs, const RWCConstSubString &rhs)
bool operator!= (const RWCConstSubString &lhs, const RWCSubString &rhs)
bool operator!= (const RWCSubString &lhs, const std::string &rhs)
bool operator!= (const std::string &lhs, const RWCSubString &rhs)
bool operator!= (const RWCSubString &lhs, const char *rhs)
bool operator!= (const char *lhs, const RWCSubString &rhs)
bool operator!= (const RWCSubString &lhs, char rhs)
bool operator!= (char lhs, const RWCSubString &rhs)
bool operator< (const RWCSubString &lhs, const RWCSubString &rhs)
bool operator< (const RWCSubString &lhs, const RWCConstSubString &rhs)
bool operator< (const RWCConstSubString &lhs, const RWCSubString &rhs)
bool operator< (const RWCSubString &lhs, const std::string &rhs)
bool operator< (const std::string &lhs, const RWCSubString &rhs)
bool operator< (const RWCSubString &lhs, const char *rhs)
bool operator< (const char *lhs, const RWCSubString &rhs)
bool operator< (const RWCSubString &lhs, char rhs)
bool operator< (char lhs, const RWCSubString &rhs)
bool operator<= (const RWCSubString &lhs, const RWCSubString &rhs)
bool operator<= (const RWCSubString &lhs, const RWCConstSubString &rhs)
bool operator<= (const RWCConstSubString &lhs, const RWCSubString &rhs)
bool operator<= (const RWCSubString &lhs, const std::string &rhs)
bool operator<= (const std::string &lhs, const RWCSubString &rhs)
bool operator<= (const RWCSubString &lhs, const char *rhs)
bool operator<= (const char *lhs, const RWCSubString &rhs)
bool operator<= (const RWCSubString &lhs, char rhs)
bool operator<= (char lhs, const RWCSubString &rhs)
bool operator>= (const RWCSubString &lhs, const RWCSubString &rhs)
bool operator>= (const RWCSubString &lhs, const RWCConstSubString &rhs)
bool operator>= (const RWCConstSubString &lhs, const RWCSubString &rhs)
bool operator>= (const RWCSubString &lhs, const std::string &rhs)
bool operator>= (const std::string &lhs, const RWCSubString &rhs)
bool operator>= (const RWCSubString &lhs, const char *rhs)
bool operator>= (const char *lhs, const RWCSubString &rhs)
bool operator>= (const RWCSubString &lhs, char rhs)
bool operator>= (char lhs, const RWCSubString &rhs)
bool operator> (const RWCSubString &lhs, const RWCSubString &rhs)
bool operator> (const RWCSubString &lhs, const RWCConstSubString &rhs)
bool operator> (const RWCConstSubString &lhs, const RWCSubString &rhs)
bool operator> (const RWCSubString &lhs, const std::string &rhs)
bool operator> (const std::string &lhs, const RWCSubString &rhs)
bool operator> (const RWCSubString &lhs, const char *rhs)
bool operator> (const char *lhs, const RWCSubString &rhs)
bool operator> (const RWCSubString &lhs, char rhs)
bool operator> (char lhs, const RWCSubString &rhs)

Detailed Description

The class RWCSubString allows some subsection of an RWCString to be addressed by defining a starting position and an extent. For example the 7th through the 11th elements, inclusive, would have a starting position of 7 and an extent of 5. The specification of a starting position and extent can also be done on your behalf by such functions as RWCString::strip() or the overloaded function call operator taking a regular expression as an argument. There are no public constructors -- RWCSubStrings are constructed by various functions of the RWCString class and then destroyed immediately.

A zero length substring is one with a defined starting position and an extent of zero. It can be thought of as starting just before the indicated character, but not including it. It can be used as an lvalue. A null substring is also legal and is frequently used to indicate that a requested substring, perhaps through a search, does not exist. A null substring can be detected with member function isNull(). However, it cannot be used as an lvalue.

Synopsis

 #include <rw/cstring.h>
 RWCString s("test string");
 s(6,3);     // "tri"

Persistence

None

Examples

 #include <iostream>
 #include <rw/cstring.h>
 
 int main()
 {
     RWCString s ("What I tell you is true.");
  
     std::cout << "Take the string: [" << s << "]\n";
 
     // Create a substring and use it as an lvalue:
     s(16, 0) = "three times ";
 
     std::cout << "After assigning text to a substring, the full string becomes: ["
               << s << "]" << std::endl;
 
     return 0;
 }

Program output:

 Take the string: [What I tell you is true.]
 After assigning text to a substring, the full string becomes: [What I tell you three times is true.]

Member Function Documentation

bool RWCSubString::isNull ( void   )  const [inline]

Returns true if this is a null substring.

size_t RWCSubString::length (  )  const [inline]

Returns the extent (i.e., length) of the substring.

int RWCSubString::operator! (  )  const [inline]

Returns true if this is a null substring.

char RWCSubString::operator() ( size_t  i  )  const [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. Bounds checking is enabled by defining the pre-processor macro RWBOUNDS_CHECK before including <rw/cstring.h>.

Exceptions:
RWBoundsErr if RWBOUNDS_CHECK is defined and the index is out of range.
char & RWCSubString::operator() ( size_t  i  )  [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. Bounds checking is enabled by defining the pre-processor macro RWBOUNDS_CHECK before including <rw/cstring.h>.

Exceptions:
RWBoundsErr if RWBOUNDS_CHECK is defined and the index is out of range.
RWCSubString & RWCSubString::operator= ( const char *  str  )  [inline]

Assignment from a character string. Example:

 RWCString str("Mary had a lamb");
 char dat[] = "Perrier";
 str(11,4) = dat;  // "Mary had a Perrier"

The number of characters selected need not match; if they differ, str is resized appropriately. If self is the null substring, then the statement has no effect. Returns a reference to self.

RWCSubString & RWCSubString::operator= ( const std::string &  str  )  [inline]

Assignment from an std::string. Example:

 std::string a;
 RWCString b;
 ...
 b(2, 3) = a;

Copies a's data into the substring b(2,3). The number of elements need not match; if they differ, b is resized appropriately. If self is the null substring, then the statement has no effect. Returns a reference to self.

RWCSubString & RWCSubString::operator= ( const RWCString &  str  )  [inline]

Assignment from an RWCString. Example:

 RWCString a;
 RWCString b;
 ...
 b(2, 3) = a;

Copies a's data into the substring b(2,3). The number of elements need not match; if they differ, b is resized appropriately. If self is the null substring, then the statement has no effect. Returns a reference to self.

RWCSubString & RWCSubString::operator= ( const RWCConstSubString &  str  )  [inline]

Assignment from an RWCConstSubString. Example:

 const RWCString a(10, 'a');
 RWCString b;
 ...
 b(2, 3) = a(5,5);

Copies 5 characters of a's data into the substring b(2,3). The number of elements need not match; if they differ, b is resized appropriately. If self is the null substring, then the statement has no effect. Returns a reference to self.

RWCSubString & RWCSubString::operator= ( const RWCSubString &  str  )  [inline]

Assignment from an RWCSubString. Example:

 RWCString a(10, 'a');
 RWCString b;
 ...
 b(2, 3) = a(5,5);

Copies 5 characters of a's data into the substring b(2,3). The number of elements need not match; if they differ, b is resized appropriately. If self is the null substring, then the statement has no effect. Returns a reference to self.

char RWCSubString::operator[] ( unsigned long long  i  )  const [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char & RWCSubString::operator[] ( unsigned long long  i  )  [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char RWCSubString::operator[] ( unsigned long  i  )  const [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char & RWCSubString::operator[] ( unsigned long  i  )  [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char RWCSubString::operator[] ( unsigned int  i  )  const [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char & RWCSubString::operator[] ( unsigned int  i  )  [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char RWCSubString::operator[] ( unsigned short  i  )  const [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char & RWCSubString::operator[] ( unsigned short  i  )  [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char RWCSubString::operator[] ( unsigned char  i  )  const [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char & RWCSubString::operator[] ( unsigned char  i  )  [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char RWCSubString::operator[] ( long long  i  )  const [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char & RWCSubString::operator[] ( long long  i  )  [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char RWCSubString::operator[] ( long  i  )  const [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char & RWCSubString::operator[] ( long  i  )  [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char RWCSubString::operator[] ( int  i  )  const [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char & RWCSubString::operator[] ( int  i  )  [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char RWCSubString::operator[] ( short  i  )  const [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char & RWCSubString::operator[] ( short  i  )  [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char RWCSubString::operator[] ( signed char  i  )  const [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char & RWCSubString::operator[] ( signed char  i  )  [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char RWCSubString::operator[] ( char  i  )  const [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.

char & RWCSubString::operator[] ( char  i  )  [inline]

Returns the i th character of the substring. The index i must be between zero and the length of the substring less one. i is converted to a size_t and bounds checking is performed.

Exceptions:
RWBoundsErr if the index is out of range.
size_t RWCSubString::start ( void   )  const [inline]

Returns the index of the starting element of the substring.

void RWCSubString::toLower (  )  [inline]

Changes all upper-case letters in self to lower-case. Uses the Standard C Library function tolower().

void RWCSubString::toUpper (  )  [inline]

Changes all lower-case letters in self to upper-case. Uses the Standard C Library function toupper().

Friends And Related Function Documentation

bool operator!= ( char  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(lhs == rhs)

bool operator!= ( const RWCSubString &  lhs,
char  rhs 
) [related]

The equivalent of calling:

 !(lhs == rhs)

bool operator!= ( const char *  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(lhs == rhs)

bool operator!= ( const RWCSubString &  lhs,
const char *  rhs 
) [related]

The equivalent of calling:

 !(lhs == rhs)

bool operator!= ( const std::string &  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(lhs == rhs)

bool operator!= ( const RWCSubString &  lhs,
const std::string &  rhs 
) [related]

The equivalent of calling:

 !(lhs == rhs)

bool operator!= ( const RWCConstSubString &  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(lhs == rhs)

bool operator!= ( const RWCSubString &  lhs,
const RWCConstSubString &  rhs 
) [related]

The equivalent of calling:

 !(lhs == rhs)

bool operator!= ( const RWCSubString &  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(lhs == rhs)

bool operator< ( char  lhs,
const RWCSubString &  rhs 
) [related]

Returns true if the length of rhs is at least one and the first character of rhs is greater than lhs.

bool operator< ( const RWCSubString &  lhs,
char  rhs 
) [related]

Returns true if lhs is empty or the first character in lhs is less than rhs. Otherwise returns false.

bool operator< ( const char *  lhs,
const RWCSubString &  rhs 
) [related]

Returns true if lhs lexicographically precedes rhs. Otherwise returns false. Use member RWCString::collate() or RWCString::strXForm() for locale-sensitive comparisons.

Note:
This function is incompatible with lhs strings with embedded nulls.

bool operator< ( const RWCSubString &  lhs,
const char *  rhs 
) [related]

Returns true if lhs lexicographically precedes rhs. Otherwise returns false. Use member RWCString::collate() or RWCString::strXForm() for locale-sensitive comparisons.

Note:
This function is incompatible with rhs strings with embedded nulls.

bool operator< ( const std::string &  lhs,
const RWCSubString &  rhs 
) [related]

Returns true if lhs lexicographically precedes rhs. Otherwise returns false. Use member RWCString::collate() or RWCString::strXForm() for locale-sensitive comparisons.

bool operator< ( const RWCSubString &  lhs,
const std::string &  rhs 
) [related]

Returns true if lhs lexicographically precedes rhs. Otherwise returns false. Use member RWCString::collate() or RWCString::strXForm() for locale-sensitive comparisons.

bool operator< ( const RWCConstSubString &  lhs,
const RWCSubString &  rhs 
) [related]

Returns true if lhs lexicographically precedes rhs. Otherwise returns false. Use member RWCString::collate() or RWCString::strXForm() for locale-sensitive comparisons.

bool operator< ( const RWCSubString &  lhs,
const RWCConstSubString &  rhs 
) [related]

Returns true if lhs lexicographically precedes rhs. Otherwise returns false. Use member RWCString::collate() or RWCString::strXForm() for locale-sensitive comparisons.

bool operator< ( const RWCSubString &  lhs,
const RWCSubString &  rhs 
) [related]

Returns true if lhs lexicographically precedes rhs. Otherwise returns false. Use member RWCString::collate() or RWCString::strXForm() for locale-sensitive comparisons.

bool operator<= ( char  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator<= ( const RWCSubString &  lhs,
char  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator<= ( const char *  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator<= ( const RWCSubString &  lhs,
const char *  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator<= ( const std::string &  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator<= ( const RWCSubString &  lhs,
const std::string &  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator<= ( const RWCConstSubString &  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator<= ( const RWCSubString &  lhs,
const RWCConstSubString &  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator<= ( const RWCSubString &  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator== ( char  lhs,
const RWCSubString &  rhs 
) [related]

Returns true if rhs has a length of one and the first character rhs is identical to the char lhs.

bool operator== ( const RWCSubString &  lhs,
char  rhs 
) [related]

Returns true if lhs has a length of one and the first character lhs is identical to the char rhs.

bool operator== ( const char *  lhs,
const RWCSubString &  rhs 
) [related]

Returns true if lhs is lexicographically equal to rhs. Otherwise returns false. Use member RWCString::collate() or RWCString::strXForm() for locale-sensitive comparisons.

Note:
This function is incompatible with lhs strings with embedded nulls.

bool operator== ( const RWCSubString &  lhs,
const char *  rhs 
) [related]

Returns true if lhs is lexicographically equal to rhs. Otherwise returns false. Use member RWCString::collate() or RWCString::strXForm() for locale-sensitive comparisons.

Note:
This function is incompatible with rhs strings with embedded nulls.

bool operator== ( const std::string &  lhs,
const RWCSubString &  rhs 
) [related]

Returns true if lhs is lexicographically equal to rhs. Otherwise returns false. Use member RWCString::collate() or RWCString::strXForm() for locale-sensitive comparisons.

bool operator== ( const RWCSubString &  lhs,
const std::string &  rhs 
) [related]

Returns true if lhs is lexicographically equal to rhs. Otherwise returns false. Use member RWCString::collate() or RWCString::strXForm() for locale-sensitive comparisons.

bool operator== ( const RWCConstSubString &  lhs,
const RWCSubString &  rhs 
) [related]

Returns true if lhs is lexicographically equal to rhs. Otherwise returns false. Use member RWCString::collate() or RWCString::strXForm() for locale-sensitive comparisons.

bool operator== ( const RWCSubString &  lhs,
const RWCConstSubString &  rhs 
) [related]

Returns true if lhs is lexicographically equal to rhs. Otherwise returns false. Use member RWCString::collate() or RWCString::strXForm() for locale-sensitive comparisons.

bool operator== ( const RWCSubString &  lhs,
const RWCSubString &  rhs 
) [related]

Returns true if lhs is lexicographically equal to rhs. Otherwise returns false. Use member RWCString::collate() or RWCString::strXForm() for locale-sensitive comparisons.

bool operator> ( char  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator> ( const RWCSubString &  lhs,
char  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator> ( const char *  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator> ( const RWCSubString &  lhs,
const char *  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator> ( const std::string &  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator> ( const RWCSubString &  lhs,
const std::string &  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator> ( const RWCConstSubString &  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator> ( const RWCSubString &  lhs,
const RWCConstSubString &  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator> ( const RWCSubString &  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(rhs < lhs)

bool operator>= ( char  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(lhs < rhs)

bool operator>= ( const RWCSubString &  lhs,
char  rhs 
) [related]

The equivalent of calling:

 !(lhs < rhs)

bool operator>= ( const char *  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(lhs < rhs)

bool operator>= ( const RWCSubString &  lhs,
const char *  rhs 
) [related]

The equivalent of calling:

 !(lhs < rhs)

bool operator>= ( const std::string &  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(lhs < rhs)

bool operator>= ( const RWCSubString &  lhs,
const std::string &  rhs 
) [related]

The equivalent of calling:

 !(lhs < rhs)

bool operator>= ( const RWCConstSubString &  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(lhs < rhs)

bool operator>= ( const RWCSubString &  lhs,
const RWCConstSubString &  rhs 
) [related]

The equivalent of calling:

 !(lhs < rhs)

bool operator>= ( const RWCSubString &  lhs,
const RWCSubString &  rhs 
) [related]

The equivalent of calling:

 !(lhs < rhs)

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