matpackVII.h File Reference

#include "matpackVI.h"

Go to the source code of this file.

Classes
class	Iterator7D
	Implementation of Tensors of Rank 7. More...
class	ConstIterator7D
	Const version of Iterator7D. More...
class	ConstTensor7View
	A constant view of a Tensor7. More...
class	Tensor7View
	The Tensor7View class. More...
class	Tensor7
	The Tensor7 class. More...

Functions
void	copy (ConstIterator7D origin, const ConstIterator7D &end, Iterator7D target)
	Copy data between begin and end to target. More...
void	copy (Numeric x, Iterator7D target, const Iterator7D &end)
	Copy a scalar to all elements. More...
void	transform (Tensor7View y, double(&my_func)(double), ConstTensor7View x)
	A generic transform function for tensors, which can be used to implement mathematical functions operating on all elements. More...
Numeric	max (const ConstTensor7View &x)
	Max function, tensor version. More...
Numeric	min (const ConstTensor7View &x)
	Min function, tensor version. More...
std::ostream &	operator<< (std::ostream &os, const ConstTensor7View &v)
	Output operator. More...
Numeric	debug_tensor7view_get_elem (Tensor7View &tv, Index l, Index v, Index s, Index b, Index p, Index r, Index c)
	Helper function to access tensor elements. More...

Function Documentation

copy() [1/2]

void copy	(	ConstIterator7D	origin,
		const ConstIterator7D &	end,
		Iterator7D	target
	)

Copy data between begin and end to target.

Target must be a valid area of memory. Note that the strides in the iterators can be different, so that we can copy data between different kinds of subtensors.

Definition at line 5302 of file matpackVII.cc.

References ConstTensor6View::begin(), Tensor6View::begin(), copy(), ConstTensor6View::end(), and Tensor7View::end().

Referenced by copy(), Tensor7View::operator=(), and Tensor7::Tensor7().

copy() [2/2]

void copy	(	Numeric	x,
		Iterator7D	target,
		const Iterator7D &	end
	)

Copy a scalar to all elements.

Definition at line 5313 of file matpackVII.cc.

References Tensor6View::begin(), copy(), Tensor6View::end(), and Tensor7View::end().

debug_tensor7view_get_elem()

Numeric debug_tensor7view_get_elem	(	Tensor7View &	tv,
		Index	l,
		Index	v,
		Index	s,
		Index	b,
		Index	p,
		Index	r,
		Index	c
	)

Helper function to access tensor elements.

Because of function inlining the operator() is not accessible from the debuggger. This function helps to access Tensor elements from within the debugger.

Parameters

tv	TensorView
l	Library index
v	Vitrine index
s	Shelf index
b	Book index
p	Page index
r	Row index
c	Column index

Author

Oliver Lemke

Date

2004-05-10

Definition at line 5645 of file matpackVII.cc.

Referenced by Tensor7::Tensor7().

max()

Numeric max

(

const ConstTensor7View &

x

)

Max function, tensor version.

Definition at line 5586 of file matpackVII.cc.

References ConstTensor7View::begin(), ConstTensor7View::end(), and max().

Referenced by max(), and Tensor7::Tensor7().

min()

Numeric min

(

const ConstTensor7View &

x

)

Min function, tensor version.

Definition at line 5605 of file matpackVII.cc.

References ConstTensor7View::begin(), ConstTensor7View::end(), and min().

Referenced by min(), and Tensor7::Tensor7().

operator<<()

std::ostream& operator<<	(	std::ostream &	os,
		const ConstTensor7View &	v
	)

Output operator.

This demonstrates how iterators can be used to traverse the tensor. We use the standard output operator for Tensor6 to print each page in turn.

Definition at line 2572 of file matpackVII.cc.

References ConstTensor7View::begin(), and ConstTensor7View::end().

Referenced by Tensor7::Tensor7().

transform()

void transform	(	Tensor7View	y,
		double(&)(double)	my_func,
		ConstTensor7View	x
	)

A generic transform function for tensors, which can be used to implement mathematical functions operating on all elements.

Because we have this, we don't need explicit functions like sqrt for tensors! The type of the mathematical function is double (&my_func)(double). Numeric would not work here, since mathematical functions for float do not exist!

transform(y,sin,x) computes y = sin(x)

The two views may be the same one, in which case the conversion happens in place.

Parameters

y	Output: The results of the function acting on each element of x.
my_func	A function (e.g., sqrt).
x	A tensor.

Definition at line 5565 of file matpackVII.cc.

References ConstTensor7View::begin(), Tensor7View::begin(), ConstTensor7View::end(), ConstTensor7View::nbooks(), ConstTensor7View::ncols(), ConstTensor7View::nlibraries(), ConstTensor7View::npages(), ConstTensor7View::nrows(), ConstTensor7View::nshelves(), ConstTensor7View::nvitrines(), and transform().

Referenced by Tensor7::Tensor7(), and transform().