#include <rangeloop.h>

Public Types
enum	Sequence { Up =0, Down =1, Alternate =2, AlternateIn =Alternate, AlternateInUp =Alternate, AlternateDown =3, AlternateInDown =AlternateDown, AlternateOut =4, AlternateOutUp =AlternateOut, AlternateOutDown =5, Random =6, PseudoRandom =7 }

enum	AddMode { Add, Skip, RemoveAll, AddRemove }

Public Member Functions
	RangeLoop (void)

	RangeLoop (double first, double last, double step, int repeat=1, int blockrepeat=1, int singlerepeat=1, int increment=1)

	RangeLoop (double first, double last, int n, int repeat=1, int blockrepeat=1, int singlerepeat=1, int increment=1)

	RangeLoop (double value, int size=1, int repeat=1, int blockrepeat=1, int singlerepeat=1, int increment=1)

	RangeLoop (const string &range)

	~RangeLoop (void)

int	size (void) const

bool	empty (void) const

void	resize (int newsize, double dflt=0.0)

void	clear (void)

int	capacity (void) const

void	reserve (int newsize)

void	set (double first, double last, double step, int repeat=1, int blockrepeat=1, int singlerepeat=1, int increment=1)

void	add (double first, double last, double step)

void	setLog (double first, double last, double fac, int repeat=1, int blockrepeat=1, int singlerepeat=1, int increment=1)

void	addLog (double first, double last, double fac)

void	set (double first, double last, int n, int repeat=1, int blockrepeat=1, int singlerepeat=1, int increment=1)

void	add (double first, double last, int n)

void	setLog (double first, double last, int n, int repeat=1, int blockrepeat=1, int singlerepeat=1, int increment=1)

void	addLog (double first, double last, int n)

void	set (double value, int size=1, int repeat=1, int blockrepeat=1, int singlerepeat=1, int increment=1)

bool	add (double value)

void	set (const string &range, double scale=1.0)

const RangeLoop &	operator= (const string &range)

AddMode	addMode (void) const

void	setAddMode (AddMode addmode)

int	repeat (void) const

void	setRepeat (int repeat)

int	currentRepetition (void) const

int	blockRepeat (void) const

void	setBlockRepeat (int repeat)

int	currentBlockRepetition (void) const

bool	finishedBlock (void) const

int	singleRepeat (void) const

void	setSingleRepeat (int repeat)

int	currentSingleRepetition (void) const

bool	finishedSingle (void) const

bool	lastSingle (void) const

void	setIncrement (int increment=1)

void	setLargeIncrement (void)

int	currentIncrement (void) const

double	currentIncrementValue (void) const

int	totalCount (void) const

int	maxCount (void) const

int	maxBlockCount (void) const

int	remainingCount (void) const

int	remainingBlockCount (void) const

void	setSequence (Sequence seq)

void	up (void)

void	down (void)

void	alternateInUp (void)

void	alternateInDown (void)

void	alternateOutUp (void)

void	alternateOutDown (void)

void	random (void)

void	pseudoRandom (void)

int	sequenceSize (void) const

void	reset (int pos=-1, bool clearskip=true)

void	purge (void)

const RangeLoop &	operator= (int pos)

const RangeLoop &	operator++ (void)

bool	operator! (void) const

void	update (int pos=-2)

int	loop (void) const

double	value (void) const

double	operator* (void) const

int	pos (void) const

int	index (void) const

int	count (void) const

void	noCount (void)

void	setSkip (bool skip=true)

double	value (int pos) const

double	operator[] (int pos) const

double &	operator[] (int pos)

double	front (void) const

double &	front (void)

double	back (void) const

double &	back (void)

double	minValue (void) const

double	maxValue (void) const

double	step (void) const

int	count (int pos) const

int	skip (int pos) const

void	setSkip (int pos, bool skip=true)

void	setSkipBelow (int pos, bool skip=true)

void	setSkipAbove (int pos, bool skip=true)

void	setSkipBetween (int pos1, int pos2, bool skip=true)

void	setSkipNocount (bool skip=true)

void	setSkipNumber (int num)

int	next (int pos) const

int	previous (int pos) const

int	pos (int index) const

int	pos (double value) const

int	index (int pos) const

bool	active (int p) const

bool	near (int pos, double value) const

Static Public Member Functions
static const string &	sequenceStrings (void)

Friends
ostream &	operator<< (ostream &str, const RangeLoop &rl)

Detailed Description

A flexible and sophisticated way to loop trough a range of values.

Author: Jan Benda

Todo:: set( string ): introduce control characters for controlling the addMode

RangeLoop is a one-dimensional array of doubles. The array can be filled by the constructors or by the set() and add() functions. All the standard vector functions for accessing and manipulating the data values are provided: operator[], back(), front(), size(), empty(), resize(), clear(), capacity(), reserve().

Now, RangeLoop provides a couple of features for looping through this array. The basic usage is like this:

RangeLoop range( 1.0, 4.0, 0.5 );
for ( range.reset(); ! range; ++range )
  cout << *range << '\n';

This will print the sequence 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0 on the screen.

You can specify in which order the array is traversed by setSequence() or by calling one of the functions up(), down(), alternateInUp(), alternateInDown(), alternateOutUp(), alternateOutDown(), random(), pseudoRandom(). They will produce the following sequences:

up(): 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0
down(): 4.0, 3.5, 3.0, 2.5, 2.0, 1.5, 1.0
alternateInUp(): 1.0, 4.0, 1.5, 3.5, 2.0, 3.0, 2.5
alternateInDown(): 5.0, 1.0, 3.5, 1.5, 3.0, 2.0, 2.5
alternateOutUp(): 2.5, 3.0, 2.0, 3.5, 1.5, 4.0, 1.0
alternateOutDown(): 2.5, 2.0, 3.0, 1.5, 3.5, 1.0, 4.0
random(): a randomized sequence that will differ for each repetition
pseudoRandom(): a randomized sequence that will always be the same

How often a single data value is immediately repeated can be specified by setSingleRepeat(), the number of repetitions of the whole sequence is controlled by setRepeat(). The latter can be zero, indicating that the whole sequence should be repeated indefinitely.

By specifying an increment by setIncrement(), you can create sub-sequences of reduced resolutions that are traversed first. The number of repetitions of each of the sub-sequences are set by setBlockRepeat(). After a sub-sequence is finished, the increment is halfed, and a new sub-sequence is created. This is continued until all data-values have been traversed.

Data values can be excluded form being further traversed by setSkip(), setSkipAbove(), setSkipBelow(), and setSkipBetween(). How often a data value was traversed can be retrieved by count(). You can remove data elements that have their skip flag set by calling purge().

pos() is the index of an data element from the whole data array. index() is the current index into the current (sub-)sequence.

Member Enumeration Documentation

enum Sequence

Different sequences for looping through the data.

Enumerator
Up	Traverse trough the data values in the order they are stored.
Down	Traverse reversed trough the data values in the order they are stored.
Alternate	Traverse upwards trough the data values alternating from the up and down sequence starting with the outermost values.
AlternateIn	Same as Alternate
AlternateInUp	Same as Alternate
AlternateDown	Traverse downwards trough the data values alternating from the up and down sequence starting with the outermost values.
AlternateInDown	Same as AlternateDown
AlternateOut	Traverse upwards trough the data values alternating from the up and down sequence starting with the innermost values.
AlternateOutUp	Same as AlternateOut
AlternateOutDown	Traverse downwards trough the data values alternating from the up and down sequence starting with the innermost values.
Random	Traverse randomly through the data values with the random seed set to the current time.
PseudoRandom	Traverse randomly through the data values with always the same random seed.

enum AddMode

Different ways how addition of already existing values is handled.

Enumerator
Add	Simply add the value, no matter whether it is already contained in the range or not.
Skip	Don't add the value if it is already contained in the list.
RemoveAll	Don't add the value if it is already contained in the list and remove the existing entries as well.
AddRemove	Add the value and remove any already existing entries.

Constructor & Destructor Documentation

RangeLoop ( void )

Construct an empty RangeLoop. Use the set() and add() functions to fil lthe range.

RangeLoop	(	double	first,
		double	last,
		double	step,
		int	repeat = `1`,
		int	blockrepeat = `1`,
		int	singlerepeat = `1`,
		int	increment = `1`
	)

Construct a linear range. See set( double, double, double, int, int, int, int ) for details.

References RangeLoop::set().

RangeLoop	(	double	first,
		double	last,
		int	n,
		int	repeat = `1`,
		int	blockrepeat = `1`,
		int	singlerepeat = `1`,
		int	increment = `1`
	)

Construct a linear range. See set( double, double, int, int, int, int, int ) for details.

References RangeLoop::set().

RangeLoop	(	double	value,
		int	size = `1`,
		int	repeat = `1`,
		int	blockrepeat = `1`,
		int	singlerepeat = `1`,
		int	increment = `1`
	)

Construct a range with a single value value. See set( double, int, int, int, int, int ) for details.

References RangeLoop::set().

RangeLoop ( const string & range )

Construct a range from range. See set( const string& ) for details.

References RangeLoop::set().

~RangeLoop ( void )

Destruct thre RangeLoop.

Member Function Documentation

int size ( void ) const

The number of elements.

Referenced by RangeLoop::next(), and RangeLoop::step().

bool empty ( void ) const

True if the range is empty.

void resize	(	int	newsize,
		double	dflt = `0.0`
	)

Resize the number of elements in the buffer and indices to newsize and initialize new elements with dflt. .

Referenced by RangeLoop::clear().

void clear ( void )

References RangeLoop::resize().

int capacity ( void ) const

The maximum number of elements for which memory is allocated.

void reserve ( int newsize )

Allocate memory for newsize elements and indices.

void set	(	double	first,
		double	last,
		double	step,
		int	repeat = `1`,
		int	blockrepeat = `1`,
		int	singlerepeat = `1`,
		int	increment = `1`
	)

Initialize the range with first value first, last value last, and increment value step. The whole sequence is repeated repeat times. If repeat is set to zero, the whole sequence is repeated indefinitely. Each subsets of data elements for a given increment is repeated blockrepeat times. Each data element is repeated singlerepeat times. The initial increment is set according to increment via setIncrement().

References RangeLoop::Add, RangeLoop::add(), RangeLoop::repeat(), RangeLoop::setIncrement(), and RangeLoop::Up.

Referenced by RangeLoop::operator=(), and RangeLoop::RangeLoop().

void add	(	double	first,
		double	last,
		double	step
	)

Add the range with first value first, last value last, and increment value step to the range.

See Also: addMode()

References relacs::floor(), and RangeLoop::step().

Referenced by RangeLoop::add(), RangeLoop::addLog(), and RangeLoop::set().

void setLog	(	double	first,
		double	last,
		double	fac,
		int	repeat = `1`,
		int	blockrepeat = `1`,
		int	singlerepeat = `1`,
		int	increment = `1`
	)

Initialize the range with first value first, last value last, and increment factor fac. The whole sequence is repeated repeat times. If repeat is set to zero, the whole sequence is repeated indefinitely. Each subsets of data elements for a given increment is repeated blockrepeat times. Each data element is repeated singlerepeat times. The initial increment is set according to increment via setIncrement().

References RangeLoop::Add, RangeLoop::addLog(), RangeLoop::repeat(), RangeLoop::setIncrement(), and RangeLoop::Up.

void addLog	(	double	first,
		double	last,
		double	fac
	)

Add the range with first value first, last value last, increment factor fac to the range.

See Also: addMode()

References RangeLoop::add(), and relacs::log().

Referenced by RangeLoop::set(), and RangeLoop::setLog().

void set	(	double	first,
		double	last,
		int	n,
		int	repeat = `1`,
		int	blockrepeat = `1`,
		int	singlerepeat = `1`,
		int	increment = `1`
	)

Initialize the range with n evenly spaced values starting with the first value first and ending with the last value last. The sequence is repeated repeat times. If repeat is set to zero, the whole sequence is repeated indefinitely. Each subsets of data elements for a given increment is repeated blockrepeat times. Each data element is repeated singlerepeat times. The initial increment is set according to increment via setIncrement().

References RangeLoop::Add, RangeLoop::add(), RangeLoop::repeat(), RangeLoop::setIncrement(), and RangeLoop::Up.

void add	(	double	first,
		double	last,
		int	n
	)

Add a range with n evenly spaced values starting with the first value first and ending with the last value last to the range.

See Also: addMode()

References RangeLoop::add(), and RangeLoop::step().

void setLog	(	double	first,
		double	last,
		int	n,
		int	repeat = `1`,
		int	blockrepeat = `1`,
		int	singlerepeat = `1`,
		int	increment = `1`
	)

Initialize the range with n logarithmically spaced values starting with the first value first and ending with the last value last. The sequence is repeated repeat times. If repeat is set to zero, the whole sequence is repeated indefinitely. Each subsets of data elements for a given increment is repeated blockrepeat times. Each data element is repeated singlerepeat times. The initial increment is set according to increment via setIncrement().

References RangeLoop::Add, RangeLoop::addLog(), RangeLoop::repeat(), RangeLoop::setIncrement(), and RangeLoop::Up.

void addLog	(	double	first,
		double	last,
		int	n
	)

Add a range with n logarithmically spaced values starting with the first value first and ending with the last value last to the range.

See Also: addMode()

References RangeLoop::add(), relacs::exp(), and relacs::log().

void set	(	double	value,
		int	size = `1`,
		int	repeat = `1`,
		int	blockrepeat = `1`,
		int	singlerepeat = `1`,
		int	increment = `1`
	)

Initialize the range with a single value value and allocate memory for size elements. The sequence is repeated repeat times. If repeat is set to zero, the whole sequence is repeated indefinitely. Each subsets of data elements for a given increment is repeated blockrepeat times. Each data element is repeated singlerepeat times. The initial increment is set according to increment via setIncrement().

References RangeLoop::Add, RangeLoop::repeat(), RangeLoop::setIncrement(), and RangeLoop::Up.

bool add ( double value )

Add the single value value to the range. If the value already exist, then value is removed from the range. Returns true if value was added to the range, and false if it was not added.

See Also: addMode()

References RangeLoop::Add, RangeLoop::AddRemove, and RangeLoop::RemoveAll.

void set	(	const string &	range,
		double	scale = `1.0`
	)

Initialize the range as defined by range. range is a comma separated list of numbers, ranges, and specifiers. Numbers and ranges are added to the range in the order they appear in range. Linear ranges are defined by a minimum and a maximum value, and an optional step size, separated by "..". For example, "-1,10..16..2" defines the following range of values: -1, 10, 12, 14, 16. Logarithmic ranges are defined by a minimum and a maximum value separated by "..", and an optional increment factor, separated by "*". For example, "2..16..2" defines the following range of values: 2, 4, 8, 16. The order is specified by a separate string ('up' (default), 'down', 'random', 'alternateinup', etc) and the initial increment by 'i:xx', where xx is an integer. For example 4..12..2,down,i:2 generates 12, 8, 4, 10, 6. All the values of the range are rescaled with scale.

References StrQueue::add(), RangeLoop::Add, RangeLoop::add(), RangeLoop::addLog(), Str::FirstNumber, RangeLoop::index(), relacs::log(), RangeLoop::setIncrement(), StrQueue::size(), RangeLoop::step(), and RangeLoop::Up.

const RangeLoop & operator= ( const string & range )

Initialize the range as defined by range.

See Also: set(const string &range )

References RangeLoop::set().

RangeLoop::AddMode addMode ( void ) const

Returns the current method that is used for adding already existing data vales to the range.

See Also: setAddMode()

void setAddMode ( AddMode addmode )

Set the method that is used for adding already existing data vales to the range to addmode.

See Also: addMode()

int repeat ( void ) const

The number of repetitions for the whole sequence.

See Also: setRepeat(), currentRepetition(), blockRepeat(), singleRepeat()

Referenced by RangeLoop::set(), RangeLoop::setBlockRepeat(), RangeLoop::setLog(), RangeLoop::setRepeat(), and RangeLoop::setSingleRepeat().

void setRepeat ( int repeat )

Set the number of repetitions for the whole sequence to repeat. If repeat is set to zero, the whole sequence is repeated indefinitely.

See Also: repeat(), setBlockRepeat(), setSingleRepeat()

References RangeLoop::repeat().

int currentRepetition ( void ) const

Return the number of executed repetitions for the whole sequence to repeat.

See Also: repeat(), currentBlockRepetition(), currentSingleRepetition()

int blockRepeat ( void ) const

The number of repetitons for a block of data elements of a single increment.

See Also: setBlockRepeat(), currentBlockRepetition(), finishedBlock(), repeat(), singleRepeat()

void setBlockRepeat ( int repeat )

Set the number of repetitons for a block of data elements of a single increment to repeat.

See Also: blockRepeat(), setRepeat(), setSingleRepeat()

References RangeLoop::repeat().

int currentBlockRepetition ( void ) const

Return the number of executed repetitions for a block of data elements of a single increment.

See Also: blockRepeat(), finishedBlock(), currentRepetition(), currentSingleRepetition()

bool finishedBlock ( void ) const

Returns true if the current block repetitions are completed.

See Also: blockRepeat(), currentBlockRepetition(), finishedSingle()

int singleRepeat ( void ) const

The number of repetitons for a single data element.

See Also: setSingleRepeat(), currentSingleRepetition(), finishedSingle(), lastSingle(), repeat(), blockRepeat()

void setSingleRepeat ( int repeat )

Set the number of repetitons for a single data element to repeat.

See Also: singleRepeat(), setRepeat(), setBlockRepeat()

References RangeLoop::repeat().

int currentSingleRepetition ( void ) const

Return the number of executed repetitions for a single data element.

See Also: singleRpeat(), finishedSingle(), lastSingle(), currentRepetition(), currentBlockRepetition()

bool finishedSingle ( void ) const

Returns true if the current single repetitions are completed, i.e. the next data element is to be started.

See Also: singleRpeat(), currentSignelRepetition(), lastSingle(), finishedBlock()

bool lastSingle ( void ) const

Returns true if this is the last single repetition.

See Also: singleRpeat(), currentSignelRepetition(), finishedSingle()

void setIncrement ( int increment = 1 )

Set the initial increment to increment indices. E.g. an increment of 2 selects every second data value. If increment equals 0, the the increment is set to setLargeIncrement(). If increment is negative, then the increment is set to setLargeIncrement() / 2^|increment|.

See Also: setLargeIncrement(), currentIncrement()

References relacs::abs(), and RangeLoop::setLargeIncrement().

Referenced by RangeLoop::set(), and RangeLoop::setLog().

void setLargeIncrement ( void )

Set the initial increment to the largest power of two less or equal than half the number of the data elements.

See Also: setIncrement(), currentIncrement()

Referenced by RangeLoop::setIncrement().

int currentIncrement ( void ) const

Return the current increment.

See Also: setIncrement()

double currentIncrementValue ( void ) const

Return the value corresponding to the current increment. This is currentIncrement() times the difference of succesive values in case of a linear range, the factor between succesive increments to the power of currentIncrement() in case of logarithmic ranges, or zero otherwise.

See Also: currentIncrement()

int totalCount ( void ) const

The sum of all counts of alle range elements.

See Also: count()

int maxCount ( void ) const

The maximum possible number of repetitions of a single data element (repeat() * blockRepeat() * singleRepeat() ).

See Also: totalCount(), maxBlockCount(), remainingCount()

int maxBlockCount ( void ) const

The maximum possible number of repetitions of a single data element for the current block sequence.

See Also: maxCount(), remainingCount()

Referenced by RangeLoop::operator++().

int remainingCount ( void ) const

Returns the overall number of remaining counts summed over all data elements that do not have their skip flag set. If repeat() is set to zero, returns the remaining count for a single repeat.

See Also: remainingBlockCount(), maxCount()

References RangeLoop::Skip.

int remainingBlockCount ( void ) const

Returns the overall number of remaining counts summed over all data elements that do not have their skip flag set for the current block of data.

References RangeLoop::Skip.

void setSequence ( Sequence seq )

Set the sequence for looping through the data values to seq.

See Also: up(), down(), alternateInUp(), alternateInDown(), alternateOutUp(), alternateOutDown(), random(), pseudoRandom()

Referenced by RangeLoop::alternateInDown(), RangeLoop::alternateInUp(), RangeLoop::alternateOutDown(), RangeLoop::alternateOutUp(), RangeLoop::down(), RangeLoop::pseudoRandom(), RangeLoop::random(), and RangeLoop::up().

void up ( void )

Loop upwards trough the data values.

See Also: setSequence()

References RangeLoop::setSequence(), and RangeLoop::Up.

void down ( void )

Loop downwards trough the data values.

See Also: setSequence()

References RangeLoop::Down, and RangeLoop::setSequence().

void alternateInUp ( void )

Loop alternating trough the data values starting with the highest value.

See Also: setSequence()

References RangeLoop::AlternateInUp, and RangeLoop::setSequence().

void alternateInDown ( void )

Loop alternating trough the data values starting with the lowest value.

See Also: setSequence()

References RangeLoop::AlternateInDown, and RangeLoop::setSequence().

void alternateOutUp ( void )

Loop alternating trough the data values starting in the middle upwards.

See Also: setSequence()

References RangeLoop::AlternateOutUp, and RangeLoop::setSequence().

void alternateOutDown ( void )

Loop alternating trough the data values starting in the middle downwards.

See Also: setSequence()

References RangeLoop::AlternateOutDown, and RangeLoop::setSequence().

void random ( void )

Loop randomly trough the data values, i.e. always draw a new sequence of random number.

See Also: setSequence()

References RangeLoop::setSequence().

void pseudoRandom ( void )

Loop pseudo-randomly trough the data values, i.e. repeat always the same random sequence.

See Also: setSequence()

References RangeLoop::PseudoRandom, and RangeLoop::setSequence().

const string & sequenceStrings ( void )

static

Returns a string with the names of possible sequence types according to Sequence separated by '|'.

int sequenceSize ( void ) const

Number of elements in the current sequence.

void reset	(	int	pos = `-1`,
		bool	clearskip = `true`
	)

Reset the range. Set index and repeat counters to zero, reset current increment, set the counts of the data elements to zero. If clearskip is set to true (default) then the skip flags are also cleared. A new sequence of indices is generated starting with the one nearest to pos. If pos is negative (default) it is set to an appropriate value.

See Also: purge()

Referenced by RangeLoop::operator=().

void purge ( void )

Remove all data elements, that have their skip flag set and generate a new sequence.

See Also: reset()

const RangeLoop & operator= ( int pos )

Reset the sequence and use pos as the first data element.

See Also: reset()

References RangeLoop::reset().

const RangeLoop & operator++ ( void )

Increment the current index of the sequence by one.

References RangeLoop::maxBlockCount(), RangeLoop::pos(), and RangeLoop::Skip.

Referenced by RangeLoop::update().

bool operator! ( void ) const

True if the RangeLoop is currently pointing to an existing data element.

void update ( int pos = -2 )

Call this function either if you set some skip flags to regenerate the sequence or if you want a different start position for the sequence. pos = -2: keep using the previously set start position. pos = -1: use the default start position. >= 0: use pos as the start position.

Note: the new sequence might be empty!

References RangeLoop::operator++(), and RangeLoop::pos().

int loop ( void ) const

Number of increments since last call of reset().

double value ( void ) const

Return the value of the current data element.

References RangeLoop::pos().

double operator* ( void ) const

Return the value of the current data element.

References RangeLoop::pos().

int pos ( void ) const

Return the position of the current data element.

Referenced by RangeLoop::active(), RangeLoop::count(), RangeLoop::next(), RangeLoop::noCount(), RangeLoop::operator*(), RangeLoop::operator++(), RangeLoop::operator[](), RangeLoop::previous(), RangeLoop::setSkip(), RangeLoop::setSkipBelow(), RangeLoop::skip(), RangeLoop::update(), and RangeLoop::value().

int index ( void ) const

Return the current index of the sequence.

Referenced by RangeLoop::pos(), and RangeLoop::set().

int count ( void ) const

Return the count of the current data element.

See Also: totalCount()

References RangeLoop::pos().

Referenced by RangeLoop::next(), and RangeLoop::previous().

void noCount ( void )

Decrement the count of the current data element. Use it before calling operator++() if you do not want the count of the current data element to be incremented.

References RangeLoop::pos().

void setSkip ( bool skip = true )

Set the skipping behavior of the current data element to skip. If skip is true (default) this data element will be skipped in future sequences.

References RangeLoop::pos(), and RangeLoop::skip().

double value ( int pos ) const

Return the value of the data element at position pos.

References RangeLoop::pos().

double operator[] ( int pos ) const

Return the value of the data element at position pos.

References RangeLoop::pos().

double & operator[] ( int pos )

Return a reference to the value of the data element at position pos.

References RangeLoop::pos().

double front ( void ) const

Return the value of the first data element.

double & front ( void )

Return a reference to the value of the first data element.

double back ( void ) const

Return the value of the last data element.

double & back ( void )

Return a reference to the value of the last data element.

double minValue ( void ) const

Return the minimum value of the range.

References relacs::min().

Referenced by RangeLoop::step().

double maxValue ( void ) const

Return the maximum value of the range.

References relacs::max().

Referenced by RangeLoop::step().

double step ( void ) const

Return the step size which is computed as (maxValue()-minValue())/(size()-1)

References RangeLoop::maxValue(), RangeLoop::minValue(), and RangeLoop::size().

Referenced by RangeLoop::add(), and RangeLoop::set().

int count ( int pos ) const

Return the count of the data element at position pos.

References RangeLoop::pos().

int skip ( int pos ) const

Return true if the data element at position pos is to be skipped.

See Also: setSkip()

References RangeLoop::pos().

Referenced by RangeLoop::setSkip(), and RangeLoop::setSkipNocount().

void setSkip	(	int	pos,
		bool	skip = `true`
	)

Set the skipping behavior of the data element a position pos to skip. If skip is true (default) this data element will be skipped in future sequences.

See Also: skip(), setSkipBelow(), setSkipAbove(), setSkipBetween(), setSkipNocount()

References RangeLoop::pos(), and RangeLoop::skip().

void setSkipBelow	(	int	pos,
		bool	skip = `true`
	)

Set the skipping behavior of all data elements below position pos inclusively to skip. If skip is true (default) these data elements will be skipped in future sequences.

See Also: setSkipAbove(), setSkipBetween(), setSkip(), setSkipNocount()

References RangeLoop::pos(), and RangeLoop::Skip.

void setSkipAbove	(	int	pos,
		bool	skip = `true`
	)

Set the skipping behavior of all data elements above position pos inclusively to skip. If skip is true (default) these data elements will be skipped in future sequences.

See Also: setSkipBelow(), setSkipBetween(), setSkip(), setSkipNocount()

References RangeLoop::Skip.

void setSkipBetween	(	int	pos1,
		int	pos2,
		bool	skip = `true`
	)

Set the skipping behavior of all data elements above position pos1 inclusively and below position pos2 inclusively to skip. If skip is true (default) these data elements will be skipped in future sequences.

See Also: setSkip(), setSkipBelow(), setSkipAbove(), setSkipNocount()

References RangeLoop::Skip.

void setSkipNocount ( bool skip = true )

Set the skipping behavior of all data elements that have not been used yet, i.e. with zero count(), to skip. If skip is true (default) these data elements will be skipped in future sequences.

See Also: setSkip(), setSkipBelow(), setSkipAbove(), setSkipBetween()

References RangeLoop::skip().

void setSkipNumber ( int num )

Within the range o non-skipped data elements leave at minimum num data elements non-skipped. Keep the ones that have a count greater than zero, and respect the current increment when selecting the not to be skipped elements.

References RangeLoop::Skip.

int next ( int pos ) const

Returns the position of the data element next or equal to position pos with count larger than zero. If there isn't any such element, size() is returned.

See Also: previous()

References RangeLoop::count(), RangeLoop::pos(), and RangeLoop::size().

int previous ( int pos ) const

Returns the position of the data element previous or equal to position pos with count larger than zero. If there isn't any such element, -1 is returned.

See Also: next()

References RangeLoop::count(), and RangeLoop::pos().

int pos ( int index ) const

Return the position of the data element at index index.

References RangeLoop::index().

int pos ( double value ) const

Return the position of the data element whose value is closest to value.

int index ( int pos ) const

Return the index of the data element at position pos. If there is no index for that data element, -1 is retunred.

bool active ( int p ) const

Returns true if the data element at position p is the active one.

References RangeLoop::pos().

bool near	(	int	pos,
		double	value
	)		const

Returns true if value is closest to the value of the data element with position pos.

Friends And Related Function Documentation

ostream& operator<<	(	ostream &	str,
		const RangeLoop &	rl
	)

friend

Write the content of the range to str.

The documentation for this class was generated from the following files:

Public Types

Public Member Functions

Static Public Member Functions

Friends

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation