point_expression_op< orig, exp1, exp2, POINT_SUB > Class Template Reference

Subtraction operation. More...

Detailed Description

template<typename orig, typename exp1, typename exp2>
class point_expression_op< orig, exp1, exp2, POINT_SUB >

Subtraction operation.

Template Parameters

exp1	expression1
exp2	expression2

Definition at line 313 of file Point_operators.hpp.

#include <Point_operators.hpp>

Public Types
typedef orig	orig_type
	Original type.
typedef int	has_init
	indicate that init must be called before value
typedef int	is_expression
	indicate that this class encapsulate an expression
typedef orig	return_type
	return type of the expression

Public Member Functions
	point_expression_op (const exp1 &o1, const exp2 &o2)
	constructor from 2 expressions More...
void	init () const
	This function must be called before value. More...
template<typename r_type = typename std::remove_reference<decltype(o1.value(0))>::type>
r_type	value (size_t k) const
	Evaluate the expression at coordinate k. More...
template<typename T , typename test = typename boost::disable_if_c< std::is_same<T,orig>::value || exp1::nvals != 1 || exp2::nvals != 1 >::type>
	operator T () const
	conversion of the class to double or float or ... More...

Static Public Attributes
static const unsigned int	nvals = r_type_dim<exp1::nvals,exp2::nvals,POINT_SUB>::value
	this operation produce a vector as result of size dims

Private Attributes
const exp1	o1
	expression 1
const exp2	o2
	expression 2

Constructor & Destructor Documentation

template<typename orig , typename exp1 , typename exp2 >

point_expression_op< orig, exp1, exp2, POINT_SUB >::point_expression_op ( const exp1 &  o1, const exp2 &  o2  )

inline

constructor from 2 expressions

Parameters

o1	expression1
o2	expression2

Definition at line 343 of file Point_operators.hpp.

Member Function Documentation

template<typename orig , typename exp1 , typename exp2 >

void point_expression_op< orig, exp1, exp2, POINT_SUB >::init ( ) const

inline

This function must be called before value.

it calculate the scalar product before return the values

Definition at line 352 of file Point_operators.hpp.

template<typename orig , typename exp1 , typename exp2 >

template<typename T , typename test = typename boost::disable_if_c< std::is_same<T,orig>::value || exp1::nvals != 1 || exp2::nvals != 1 >::type>

point_expression_op< orig, exp1, exp2, POINT_SUB >::operator T ( ) const

inline

conversion of the class to double or float or ...

Definition at line 374 of file Point_operators.hpp.

template<typename orig , typename exp1 , typename exp2 >

template<typename r_type = typename std::remove_reference<decltype(o1.value(0))>::type>

r_type point_expression_op< orig, exp1, exp2, POINT_SUB >::value ( size_t  k ) const

inline

Evaluate the expression at coordinate k.

Parameters

k	coordinate

Returns

the evaluate expression at coordinate k

Definition at line 365 of file Point_operators.hpp.

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

• openfpm_data/src/Space/Shape/Point_operators.hpp