class c4_Cursor

An iterator for collections of rows (views).

Public:

c4_Cursor (c4_Sequence& implementation_, int index_);

Constructs a new cursor.

c4_RowRef operator* () const;

Dereferences this cursor to "almost" a row.

c4_RowRef operator[] (int index_) const;

This is the same as *(cursor + offset).

c4_Cursor& operator++ ();

Pre-increments the cursor.

c4_Cursor operator++ (int);

Post-increments the cursor.

c4_Cursor& operator-- ();

Pre-decrements the cursor.

c4_Cursor operator-- (int);

Post-decrements the cursor.

c4_Cursor& operator+= (int offset_);

Advances by a given offset.

c4_Cursor& operator-= (int offset_);

Backs up by a given offset.

c4_Cursor operator- (int) const;

Subtracts a specified offset.

int operator- (c4_Cursor cursor_) const;

Returns the distance between two cursors.

Friends:

friend c4_Cursor operator+ (c4_Cursor cursor_, int offset_);

Adds specified offset.

friend c4_Cursor operator+ (int offset_, c4_Cursor cursor_);

Adds specified offset to cursor.

friend bool operator== (c4_Cursor a_, c4_Cursor b_);

Returns true if both cursors are equal.

friend bool operator!= (c4_Cursor a_, c4_Cursor b_);

Returns true if both cursors are not equal.

friend bool operator< (c4_Cursor a_, c4_Cursor b_);

True if first cursor is less than second cursor.

friend bool operator> (c4_Cursor a_, c4_Cursor b_);

True if first cursor is greater than second cursor.

friend bool operator<= (c4_Cursor a_, c4_Cursor b_);

True if first cursor is less or equal to second cursor.

friend bool operator>= (c4_Cursor a_, c4_Cursor b_);

True if first cursor is greater or equal to second cursor.

friend class c4_Reference;

friend class c4_Row;

friend class c4_RowRef;

friend class c4_View;

friend class c4_Sequence;

friend class c4_FilterSeq;

friend class c4_SortSeq;

friend bool operator== (c4_RowRef a_, c4_RowRef b_);

friend bool operator< (c4_RowRef a_, c4_RowRef b_);

#include "k4view.h"   // Jun 8, 1997