Class implementing fixed size vectors of doubles More...

#include <Vector.h>

Inheritance diagram for PLMD::VectorGeneric< n >:

Public Member Functions
template<typename... Args>
	VectorGeneric (double first, Args... arg)
	Constructor accepting n double parameters. More...

	VectorGeneric ()
	create it null More...

double	modulo () const
	Compute the modulo. More...

double	modulo2 () const
	compute the squared modulo More...

double &	operator() (unsigned i)
	parenthesis access (i) More...

const double &	operator() (unsigned i) const
	parenthesis access (i) More...

VectorGeneric &	operator*= (double s)
	multiply More...

VectorGeneric	operator+ () const
	sign + More...

VectorGeneric &	operator+= (const VectorGeneric &b)
	increment More...

VectorGeneric	operator- () const
	sign - More...

VectorGeneric &	operator-= (const VectorGeneric &b)
	decrement More...

VectorGeneric &	operator/= (double s)
	divide More...

double &	operator[] (unsigned i)
	array-like access [i] More...

const double &	operator[] (unsigned i) const
	array-like access [i] More...

void	zero ()
	set it to zero More...

Private Member Functions
void	auxiliaryConstructor ()
	Auxiliary private function for constructor. More...

template<typename... Args>
void	auxiliaryConstructor (double first, Args... arg)
	Auxiliary private function for constructor. More...

Private Attributes
std::array< double, n >	d

Friends
VectorGeneric< 3 >	crossProduct (const VectorGeneric< 3 > &, const VectorGeneric< 3 > &)
	return v1 .vector. More...

template<unsigned m>
VectorGeneric< m >	delta (const VectorGeneric< m > &v1, const VectorGeneric< m > &v2)
	return v2-v1 More...

template<unsigned m>
double	dotProduct (const VectorGeneric< m > &, const VectorGeneric< m > &)
	return v1 .scalar. v2 More...

template<unsigned m>
double	modulo (const VectorGeneric< m > &)
	friend version of modulo (to simplify some syntax) More...

template<unsigned m>
double	modulo2 (const VectorGeneric< m > &)
	friend version of modulo2 (to simplify some syntax) More...

template<unsigned m>
VectorGeneric< m >	operator* (double, const VectorGeneric< m > &)
	return s*v More...

template<unsigned m>
VectorGeneric< m >	operator* (const VectorGeneric< m > &, double)
	return v*s More...

template<unsigned m>
VectorGeneric< m >	operator+ (const VectorGeneric< m > &, const VectorGeneric< m > &)
	return v1+v2 More...

template<unsigned m>
VectorGeneric< m >	operator- (const VectorGeneric< m > &, const VectorGeneric< m > &)
	return v1-v2 More...

template<unsigned m>
VectorGeneric< m >	operator/ (const VectorGeneric< m > &, double)
	return v/s More...

template<unsigned m>
std::ostream &	operator<< (std::ostream &os, const VectorGeneric< m > &)
	<< operator. More...

Detailed Description

template<unsigned n>
class PLMD::VectorGeneric< n >

Class implementing fixed size vectors of doubles

Template Parameters

n	The number of elements of the vector.

This class implements a vector of doubles with size fixed at compile time. It is useful for small fixed size objects (e.g. 3d vectors) as it does not waste space to store the vector size. Moreover, as the compiler knows the size, it can be completely opimized inline. All the methods are inlined for better optimization and all the loops are explicitly unrolled using PLMD::LoopUnroller class. Vector elements are initialized to zero by default. Notice that this means that constructor is a bit slow. This point might change in future if we find performance issues. Accepts both [] and () syntax for access. Several functions are declared as friends even if not necessary so as to properly appear in Doxygen documentation.

Aliases are defined to simplify common declarations (Vector, Vector2d, Vector3d, Vector4d). Also notice that some operations are only available for 3 dimensional vectors.

Example of usage

#include "Vector.h"

using namespace PLMD;

int main(){
  VectorGeneric<3> v1;
  v1[0]=3.0;
// use equivalently () and [] syntax:
  v1(1)=5.0;
// initialize with components
  VectorGeneric<3> v2=VectorGeneric<3>(1.0,2.0,3.0);
  VectorGeneric<3> v3=crossProduct(v1,v2);
  double d=dotProduct(v1,v2);
  v3+=v1;
  v2=v1+2.0*v3;
}

Constructor & Destructor Documentation

◆ VectorGeneric() [1/2]

template<unsigned n>

template<typename... Args>

PLMD::VectorGeneric< n >::VectorGeneric	(	double	first,
		Args...	arg
	)

Constructor accepting n double parameters.

Can be used as Vector<3>(1.0,2.0,3.0) or Vector<2>(2.0,3.0). In case a wrong number of parameters is given, a static assertion will fail.

◆ VectorGeneric() [2/2]

template<unsigned n>

PLMD::VectorGeneric< n >::VectorGeneric ( )

create it null

Member Function Documentation

◆ auxiliaryConstructor() [1/2]

template<unsigned n>

void PLMD::VectorGeneric< n >::auxiliaryConstructor ( )

private

Auxiliary private function for constructor.

◆ auxiliaryConstructor() [2/2]

template<unsigned n>

template<typename... Args>

void PLMD::VectorGeneric< n >::auxiliaryConstructor	(	double	first,
		Args...	arg
	)

private

Auxiliary private function for constructor.

◆ modulo()

template<unsigned n>

double PLMD::VectorGeneric< n >::modulo ( ) const

Compute the modulo.

Shortcut for sqrt(v.modulo2())

◆ modulo2()

template<unsigned n>

double PLMD::VectorGeneric< n >::modulo2 ( ) const

compute the squared modulo

◆ operator()() [1/2]

template<unsigned n>

double & PLMD::VectorGeneric< n >::operator() ( unsigned i )

parenthesis access (i)

◆ operator()() [2/2]

template<unsigned n>

const double & PLMD::VectorGeneric< n >::operator() ( unsigned i ) const

parenthesis access (i)

◆ operator*=()

template<unsigned n>

VectorGeneric< n > & PLMD::VectorGeneric< n >::operator*= ( double s )

multiply

◆ operator+()

template<unsigned n>

VectorGeneric< n > PLMD::VectorGeneric< n >::operator+ ( ) const

sign +

◆ operator+=()

template<unsigned n>

VectorGeneric< n > & PLMD::VectorGeneric< n >::operator+= ( const VectorGeneric< n > & b )

increment

◆ operator-()

template<unsigned n>

VectorGeneric< n > PLMD::VectorGeneric< n >::operator- ( ) const

sign -

◆ operator-=()

template<unsigned n>

VectorGeneric< n > & PLMD::VectorGeneric< n >::operator-= ( const VectorGeneric< n > & b )

decrement

◆ operator/=()

template<unsigned n>

VectorGeneric< n > & PLMD::VectorGeneric< n >::operator/= ( double s )

divide

◆ operator[]() [1/2]

template<unsigned n>

double & PLMD::VectorGeneric< n >::operator[] ( unsigned i )

array-like access [i]

◆ operator[]() [2/2]

template<unsigned n>

const double & PLMD::VectorGeneric< n >::operator[] ( unsigned i ) const

array-like access [i]

◆ zero()

template<unsigned n>

void PLMD::VectorGeneric< n >::zero ( )

set it to zero

Friends And Related Function Documentation

◆ crossProduct

template<unsigned n>

VectorGeneric<3> crossProduct	(	const VectorGeneric< 3 > &	v1,
		const VectorGeneric< 3 > &	v2
	)

friend

return v1 .vector.

v2 Only available for size 3

◆ delta

template<unsigned n>

template<unsigned m>

VectorGeneric<m> delta	(	const VectorGeneric< m > &	v1,
		const VectorGeneric< m > &	v2
	)

friend

return v2-v1

◆ dotProduct

template<unsigned n>

template<unsigned m>

double dotProduct	(	const VectorGeneric< m > &	,
		const VectorGeneric< m > &
	)

friend

return v1 .scalar. v2

◆ modulo

template<unsigned n>

template<unsigned m>

double modulo ( const VectorGeneric< m > & )

friend

friend version of modulo (to simplify some syntax)

◆ modulo2

template<unsigned n>

template<unsigned m>

double modulo2 ( const VectorGeneric< m > & )

friend

friend version of modulo2 (to simplify some syntax)

◆ operator* [1/2]

template<unsigned n>

template<unsigned m>

VectorGeneric<m> operator*	(	double	,
		const VectorGeneric< m > &
	)

friend

return s*v

◆ operator* [2/2]

template<unsigned n>

template<unsigned m>

VectorGeneric<m> operator*	(	const VectorGeneric< m > &	,
		double
	)

friend

return v*s

◆ operator+

template<unsigned n>

template<unsigned m>

VectorGeneric<m> operator+	(	const VectorGeneric< m > &	,
		const VectorGeneric< m > &
	)

friend

return v1+v2

◆ operator-

template<unsigned n>

template<unsigned m>

VectorGeneric<m> operator-	(	const VectorGeneric< m > &	,
		const VectorGeneric< m > &
	)

friend

return v1-v2

◆ operator/

template<unsigned n>

template<unsigned m>

VectorGeneric<m> operator/	(	const VectorGeneric< m > &	,
		double
	)

friend

return v/s

◆ operator<<

template<unsigned n>

template<unsigned m>

std::ostream& operator<<	(	std::ostream &	os,
		const VectorGeneric< m > &
	)

friend

<< operator.

Allows printing vector v with std::cout<<v;

Member Data Documentation

◆ d

template<unsigned n>

std::array<double,n> PLMD::VectorGeneric< n >::d

private

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

tools/Vector.h

Public Member Functions

Private Member Functions

Private Attributes

Friends

Detailed Description

template<unsigned n> class PLMD::VectorGeneric< n >

Constructor & Destructor Documentation

◆ VectorGeneric() [1/2]

◆ VectorGeneric() [2/2]

Member Function Documentation

◆ auxiliaryConstructor() [1/2]

◆ auxiliaryConstructor() [2/2]

◆ modulo()

◆ modulo2()

◆ operator()() [1/2]

◆ operator()() [2/2]

◆ operator*=()

◆ operator+()

◆ operator+=()

◆ operator-()

◆ operator-=()

◆ operator/=()

◆ operator[]() [1/2]

◆ operator[]() [2/2]

◆ zero()

Friends And Related Function Documentation

◆ crossProduct

◆ delta

◆ dotProduct

◆ modulo

◆ modulo2

◆ operator* [1/2]

◆ operator* [2/2]

◆ operator+

◆ operator-

◆ operator/

◆ operator<<

Member Data Documentation

◆ d

template<unsigned n>
class PLMD::VectorGeneric< n >