Read only view version of a matrix. More...

#include <core.hpp>

Public Member Functions
	MatView (const Mat< T, n_rows, n_cols, type > &m)
	Construct a new MatView object from raw data pointer.

	MatView (Mat< T, n_rows, n_cols, type > &m)

	MatView (const T *const ptr)

	MatView (const MatView &m)
	Copy constructor.

MatView &	operator= (const Mat< T, n_rows, n_cols, type > &m)

template<typename M >
void	assign (M m)

T	operator() (size_t r, size_t c) const
	Get the read only data element from row and column index.

T	operator[] (size_t index) const
	Get the read only element by array row major index.

template<template< class, size_t, size_t, MatType, class... > typename M, typename... _unused, typename T2 , MatType type2, size_t rows_, size_t cols_>
MatView &	col (const M< T2, rows_, cols_, type2, _unused... > &mat, size_t c)
	Take a column of a matrix by index.

template<template< class, size_t, size_t, MatType, class... > typename M, typename... _unused, typename T2 , MatType type2, size_t rows_, size_t cols_>
void	col (size_t c, const M< T2, rows_, cols_, type2, _unused... > &mat)

Mat< T, n_rows, 1, MatType::NORMAL >	col (size_t c) const
	Take a column of a matrix by index and make a copy.

template<template< class, size_t, size_t, MatType, class... > typename M, typename... _unused, typename T2 , MatType type2>
MatView &	add (const M< T2, n_rows, n_cols, type2, _unused... > &mat_R)

template<template< class, size_t, size_t, MatType, class... > typename M, typename... _unused, typename T2 , MatType type2>
MatView &	sub (const M< T2, n_rows, n_cols, type2, _unused... > &mat_R)

MatViewT< T, n_cols, n_rows, type >	t_ () const

template<typename Tp = T>
Tp	power () const

template<typename Tp = T>
Tp	abssum () const

	operator Mat< T, n_rows, n_cols, type > () const
	Conversion from view to a real Mat.

Mat< T, n_rows, n_cols, type >	asMat () const
	Explicitly make a Mat copy.

void	print (const std::string &str="", std::ostream &os=std::cout) const

Static Public Member Functions
static constexpr size_t	size () noexcept
	The data element number.

Public Attributes
const T *const	_data

Detailed Description

template<typename T, size_t n_rows, size_t n_cols, MatType type>
class flames::MatView< T, n_rows, n_cols, type >

Read only view version of a matrix.

Template Parameters

T	Element type.
n_rows	Number of rows.
n_cols	Number of columns.
type	Matrix type.

Constructor & Destructor Documentation

◆ MatView() [1/4]

template<typename T , size_t n_rows, size_t n_cols, MatType type>

flames::MatView< T, n_rows, n_cols, type >::MatView ( const Mat< T, n_rows, n_cols, type > & m )

inline

Construct a new MatView object from raw data pointer.

Parameters

m	The original matrix.

◆ MatView() [2/4]

template<typename T , size_t n_rows, size_t n_cols, MatType type>

flames::MatView< T, n_rows, n_cols, type >::MatView ( Mat< T, n_rows, n_cols, type > & m )

inline

◆ MatView() [3/4]

template<typename T , size_t n_rows, size_t n_cols, MatType type>

flames::MatView< T, n_rows, n_cols, type >::MatView ( const T *const ptr )

inline

◆ MatView() [4/4]

template<typename T , size_t n_rows, size_t n_cols, MatType type>

flames::MatView< T, n_rows, n_cols, type >::MatView ( const MatView< T, n_rows, n_cols, type > & m )

inline

Copy constructor.

Parameters

m	Another MatView object.

Member Function Documentation

◆ abssum()

template<typename T , size_t n_rows, size_t n_cols, MatType type>

template<typename Tp = T>

Tp flames::MatView< T, n_rows, n_cols, type >::abssum ( ) const

inline

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◆ add()

template<typename T , size_t n_rows, size_t n_cols, MatType type>

template<template< class, size_t, size_t, MatType, class... > typename M, typename... _unused, typename T2 , MatType type2>

MatView & flames::MatView< T, n_rows, n_cols, type >::add ( const M< T2, n_rows, n_cols, type2, _unused... > & mat_R )

inline

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◆ asMat()

template<typename T , size_t n_rows, size_t n_cols, MatType type>

Mat< T, n_rows, n_cols, type > flames::MatView< T, n_rows, n_cols, type >::asMat ( ) const

inline

Explicitly make a Mat copy.

Returns: (Mat<T, n_rows, n_cols, type>) The real Mat.

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◆ assign()

template<typename T , size_t n_rows, size_t n_cols, MatType type>

template<typename M >

void flames::MatView< T, n_rows, n_cols, type >::assign ( M m )

inline

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◆ col() [1/3]

template<typename T , size_t n_rows, size_t n_cols, MatType type>

template<template< class, size_t, size_t, MatType, class... > typename M, typename... _unused, typename T2 , MatType type2, size_t rows_, size_t cols_>

MatView & flames::MatView< T, n_rows, n_cols, type >::col	(	const M< T2, rows_, cols_, type2, _unused... > &	mat,
		size_t	c )

inline

Take a column of a matrix by index.

The result is stored to 'this'. You may configure macro FLAMES_MAT_COPY_UNROLL_FACTOR or FLAMES_UNROLL_FACTOR to do the operation in parallel.

Template Parameters

M	The original matrix type.
_unused	(unused)
T2	The original matrix element type.

Parameters

mat	The original matrix.
c	The column index.

Returns: (Mat&) The certain column(a column vector) (a reference to 'this') .

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◆ col() [2/3]

template<typename T , size_t n_rows, size_t n_cols, MatType type>

Mat< T, n_rows, 1, MatType::NORMAL > flames::MatView< T, n_rows, n_cols, type >::col ( size_t c ) const

inline

Take a column of a matrix by index and make a copy.

Note: This function makes a copy, so if you want to optimize your design, always use .col(Mat, int) that takes an argument to avoid copy in place other than initialization. They are equivalent in initialization. Another choice is to use .col_() which creates a read only view, and this operation does not copy.

You may configure macro FLAMES_MAT_COPY_UNROLL_FACTOR or FLAMES_UNROLL_FACTOR to do the operation in parallel.

Parameters

c	The column index.

Returns: (Mat<T, n_rows, 1, MatType::NORMAL>)(column vector) The certain column vector copy.

◆ col() [3/3]

template<typename T , size_t n_rows, size_t n_cols, MatType type>

template<template< class, size_t, size_t, MatType, class... > typename M, typename... _unused, typename T2 , MatType type2, size_t rows_, size_t cols_>

void flames::MatView< T, n_rows, n_cols, type >::col	(	size_t	c,
		const M< T2, rows_, cols_, type2, _unused... > &	mat )

inline

◆ operator Mat< T, n_rows, n_cols, type >()

template<typename T , size_t n_rows, size_t n_cols, MatType type>

flames::MatView< T, n_rows, n_cols, type >::operator Mat< T, n_rows, n_cols, type > ( ) const

inline

Conversion from view to a real Mat.

Returns: (Mat<T, n_rows, n_cols, type>) The real Mat.

◆ operator()()

template<typename T , size_t n_rows, size_t n_cols, MatType type>

T flames::MatView< T, n_rows, n_cols, type >::operator()	(	size_t	r,
		size_t	c ) const

inline

Get the read only data element from row and column index.

Parameters

r	The row index.
c	The column index.

Returns: (T) The element value.

◆ operator=()

template<typename T , size_t n_rows, size_t n_cols, MatType type>

MatView & flames::MatView< T, n_rows, n_cols, type >::operator= ( const Mat< T, n_rows, n_cols, type > & m )

inline

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◆ operator[]()

template<typename T , size_t n_rows, size_t n_cols, MatType type>

T flames::MatView< T, n_rows, n_cols, type >::operator[] ( size_t index ) const

inline

Get the read only element by array row major index.

Parameters

index The index.

Returns: (T) The data.

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◆ power()

template<typename T , size_t n_rows, size_t n_cols, MatType type>

template<typename Tp = T>

Tp flames::MatView< T, n_rows, n_cols, type >::power ( ) const

inline

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◆ print()

template<typename T , size_t n_rows, size_t n_cols, MatType type>

void flames::MatView< T, n_rows, n_cols, type >::print	(	const std::string &	str = "",
		std::ostream &	os = std::cout ) const

inline

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◆ size()

template<typename T , size_t n_rows, size_t n_cols, MatType type>

static constexpr size_t flames::MatView< T, n_rows, n_cols, type >::size ( )

inlinestaticconstexprnoexcept

The data element number.

Returns: (constexpr size_t) The size.

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◆ sub()

template<typename T , size_t n_rows, size_t n_cols, MatType type>

template<template< class, size_t, size_t, MatType, class... > typename M, typename... _unused, typename T2 , MatType type2>

MatView & flames::MatView< T, n_rows, n_cols, type >::sub ( const M< T2, n_rows, n_cols, type2, _unused... > & mat_R )

inline

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◆ t_()

template<typename T , size_t n_rows, size_t n_cols, MatType type>

MatViewT< T, n_cols, n_rows, type > flames::MatView< T, n_rows, n_cols, type >::t_ ( ) const

inline

Member Data Documentation

◆ _data

template<typename T , size_t n_rows, size_t n_cols, MatType type>

const T* const flames::MatView< T, n_rows, n_cols, type >::_data

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

core.hpp

Public Member Functions

Static Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ MatView() [1/4]

◆ MatView() [2/4]

◆ MatView() [3/4]

◆ MatView() [4/4]

Member Function Documentation

◆ abssum()

◆ add()

◆ asMat()

◆ assign()

◆ col() [1/3]

◆ col() [2/3]

◆ col() [3/3]

◆ operator Mat< T, n_rows, n_cols, type >()

◆ operator()()

◆ operator=()

◆ operator[]()

◆ power()

◆ print()

◆ size()

◆ sub()

◆ t_()

Member Data Documentation

◆ _data