PIVector2D< T >::Col Class Reference

Proxy class representing a single column in a PIVector2D for modification. Objects of this class are returned by non-const col(). They provide column-wise access and operations similar to Row. More...

#include <pivector2d.h>

Inheritance diagram for PIVector2D< T >::Col:

Public Member Functions
T &	operator[] (size_t index)
	Accesses the element at the given row index within the column.
T *	data (size_t index=0)
	Returns a pointer to the column data starting at an optional row offset. Note that column elements are not stored contiguously in memory, so this pointer cannot be used to iterate over the whole column.
Col &	operator= (const Col &other)
	Assigns the contents of another Col to this column.
Col &	operator= (const PIVector< T > &other)
	Assigns the contents of a PIVector to this column.
void	forEach (std::function< void(T &)> func)
	Applies a function to each element of the column (modifiable). The function can modify the elements. More...
void	fill (const T &value)
	Fills the column with copies of value. More...
const T *	data (size_t index=0) const
	Returns a const pointer to the column data starting at an optional row offset.
size_t	size () const
	Size of the column (number of rows).
Public Member Functions inherited from PIVector2D< T >::ColConst
	ColConst (const PIVector2D< T >::Col &c)
	Copy constructor from modifiable Col to read-only ColConst. More...
size_t	size () const
	Size of the column (number of rows).
const T &	operator[] (size_t index) const
	Const access to the element at the given row index within the column.
const T *	data (size_t index=0) const
	Returns a const pointer to the column data starting at an optional row offset.
PIVector< T >	toVector () const
	Converts the column to a PIVector.
ssize_t	indexOf (const T &e, ssize_t start=0) const
	Returns the first index of element e in the row, starting from start. See PIVector::indexOf() for details on negative start handling. More...
ssize_t	lastIndexOf (const T &e, ssize_t start=-1) const
	Returns the last index of element e in the row, searching backwards from start. More...
ssize_t	indexWhere (std::function< bool(const T &e)> test, ssize_t start=0) const
	Returns the first index where the predicate test returns true, starting from start. More...
ssize_t	lastIndexWhere (std::function< bool(const T &e)> test, ssize_t start=-1) const
	Returns the last index where the predicate test returns true, searching backwards from start. More...
void	forEach (std::function< void(const T &)> func) const
	Applies a function to each element of the column (read-only). The function can't modify the elements. More...
bool	contains (const T &e, ssize_t start=0) const
	Checks if the column contains the element e. More...
int	entries (const T &e, ssize_t start=0) const
	Counts occurrences of e in the column. More...
int	entries (std::function< bool(const T &e)> test, ssize_t start=0) const
	Counts elements in the column that pass the test. More...
bool	any (std::function< bool(const T &e)> test) const
	Tests if any element in the column passes the test. More...
bool	every (std::function< bool(const T &e)> test) const
	Tests if all elements in the column pass the test. More...

Detailed Description

template<typename T>
class PIVector2D< T >::Col

Proxy class representing a single column in a PIVector2D for modification. Objects of this class are returned by non-const col(). They provide column-wise access and operations similar to Row.

Member Function Documentation

forEach()

template<typename T >

void PIVector2D< T >::Col::forEach ( std::function< void(T &)>  func )

inline

Applies a function to each element of the column (modifiable). The function can modify the elements.

See also

PIVector::forEach()

fill()

template<typename T >

void PIVector2D< T >::Col::fill ( const T &  value )

inline

Fills the column with copies of value.

See also

PIVector::fill()