Matrix< T > Class Template Reference

#include <matrix.h>

Public Member Functions
	Matrix ()
	Matrix (int rows, int cols)
void	clear ()
bool	empty () const
void	resize (int rows, int cols)
void	set_rows (int rows)
void	set_cols (int cols)
template<class U >
void	fill (U value)
void	swap (Matrix< T > &m)
int	get_rows () const
int	get_cols () const
T &	operator() (int i, int j)
const T &	operator() (int i, int j) const
MatrixRow< T >	operator[] (int i)
const MatrixRow< T >	operator[] (int i) const
void	swap_rows (int r1, int r2)
void	rotate_left (int first, int last)
void	rotate_right (int first, int last)
void	rotate (int first, int middle, int last)
void	rotate_gram_left (int first, int last, int n_valid_rows)
void	rotate_gram_right (int first, int last, int n_valid_rows)
void	transpose ()
T	get_max ()
long	get_max_exp ()
void	print (ostream &os, int nrows=-1, int ncols=-1) const
void	read (istream &is)
ostream &	print_comma (ostream &os) const

Static Public Member Functions
static int	set_print_mode (int new_print_mode)

Protected Attributes
int	r
int	c
vector< NumVect< T > >	matrix

Static Protected Attributes
static int	print_mode = MAT_PRINT_COMPACT

Detailed Description

template<class T>
class Matrix< T >

Matrix is a two-dimensional container. Read and write operations on single elements are in constant time. The amortized complexity of resizing the matrix is proportional to the number of added/removed elements. All indices are 0-based.

Constructor & Destructor Documentation

Matrix() [1/2]

template<class T >

Matrix< T >::Matrix ( )

inline

Creates an empty matrix (0 x 0).

Matrix() [2/2]

template<class T >

Matrix< T >::Matrix ( int  rows, int  cols  )

inline

Creates a matrix of dimensions rows x cols. All elements are initialized with the default constructor of T.

Member Function Documentation

clear()

template<class T >

void Matrix< T >::clear ( )

inline

Sets number of rows and the number of columns to 0.

empty()

template<class T >

bool Matrix< T >::empty ( ) const

inline

Returns true if the matrix has 0 rows, false otherwise.

fill()

template<class T >

template<class U >

void Matrix< T >::fill

(

U

value

)

Fills this matrix with a given value.

get_cols()

template<class T >

int Matrix< T >::get_cols ( ) const

inline

Returns the number of columns

get_max()

template<class T >

T Matrix< T >::get_max

get_max_exp()

template<class T >

long Matrix< T >::get_max_exp

get_rows()

template<class T >

int Matrix< T >::get_rows ( ) const

inline

Returns the number of rows

operator()() [1/2]

template<class T >

T & Matrix< T >::operator() ( int  i, int  j  )

inline

Returns a reference to the element (i, j).

operator()() [2/2]

template<class T >

const T & Matrix< T >::operator() ( int  i, int  j  ) const

inline

Returns a constant reference to the element (i, j) on constant objects.

operator[]() [1/2]

template<class T >

MatrixRow< T > Matrix< T >::operator[] ( int  i )

inline

Returns a MatrixRow object pointing to the i-th row of this matrix.

operator[]() [2/2]

template<class T >

const MatrixRow< T > Matrix< T >::operator[] ( int  i ) const

inline

Returns a MatrixRow object pointing to the i-th row of this matrix on constant objects.

print()

template<class T >

void Matrix< T >::print	(	ostream &	os,
		int	nrows = -1,
		int	ncols = -1
	)		const

Prints this matrix. No end-of-line is printed after the last line.

Parameters

os	output stream
nrows	maximum number of rows to display (optional)
ncols	maximum number of columns to display (optional)

print_comma()

template<class T >

ostream & Matrix< T >::print_comma

(

ostream &

os

)

const

Print the matrix, sage format style

read()

template<class T >

void Matrix< T >::read

(

istream &

is

)

Reads this matrix from a stream.

resize()

template<class T >

FPLLL_BEGIN_NAMESPACE void Matrix< T >::resize	(	int	rows,
		int	cols
	)

Sets the dimensions of this matrix, preserving as much as possible of the content. The value of new elements is undefined.

rotate()

template<class T >

void Matrix< T >::rotate ( int  first, int  middle, int  last  )

inline

Rows permutation. (m[first],...,m[middle-1],m[middle],m[last]) becomes (m[middle],...,m[last],m[first],...,m[middle-1])

rotate_gram_left()

template<class T >

void Matrix< T >::rotate_gram_left	(	int	first,
		int	last,
		int	n_valid_rows
	)

Transformation needed to update the lower triangular Gram matrix when rotate_left(first, last) is done on the basis of the lattice.

rotate_gram_right()

template<class T >

void Matrix< T >::rotate_gram_right	(	int	first,
		int	last,
		int	n_valid_rows
	)

Transformation needed to update the lower triangular Gram matrix when rotate_right(first, last) is done on the basis of the lattice.

rotate_left()

template<class T >

void Matrix< T >::rotate_left ( int  first, int  last  )

inline

Rows permutation. (m[first],...,m[last]) becomes (m[first+1],...,m[last],m[first])

rotate_right()

template<class T >

void Matrix< T >::rotate_right ( int  first, int  last  )

inline

Rows permutation. (m[first],...,m[last]) becomes (m[last],m[first],...,m[last-1])

set_cols()

template<class T >

void Matrix< T >::set_cols ( int  cols )

inline

Sets the number of columns. Content is not erased except for deleted columns. The value of new elements is undefined.

set_print_mode()

template<class T >

static int Matrix< T >::set_print_mode ( int  new_print_mode )

inlinestatic

Change the output format style of Matrix

set_rows()

template<class T >

void Matrix< T >::set_rows ( int  rows )

inline

Sets the number of rows. Content is not erased except for deleted rows. The value of new elements is undefined.

swap()

template<class T >

void Matrix< T >::swap ( Matrix< T > &  m )

inline

Efficiently swaps two matrices.

swap_rows()

template<class T >

void Matrix< T >::swap_rows ( int  r1, int  r2  )

inline

Rows swap.

transpose()

template<class T >

void Matrix< T >::transpose

Transpose.

Field Documentation

c

template<class T >

int Matrix< T >::c

protected

matrix

template<class T >

vector<NumVect<T> > Matrix< T >::matrix

protected

print_mode

template<class T >

int Matrix< T >::print_mode = MAT_PRINT_COMPACT

staticprotected

r

template<class T >

int Matrix< T >::r

protected

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

• fplll/nr/matrix.h
• fplll/nr/matrix.cpp