mul< expr > Struct Template Reference

It model an expression expr1 * expr2. More...

Detailed Description

template<typename ... expr>
struct mul< expr >

It model an expression expr1 * expr2.

Warning

expr1 MUST be a constant expression only expr2 depend form variable, this requirement ensure linearity in the solving variable of the equations

Template Parameters

expr1
expr2

Definition at line 119 of file mul.hpp.

#include <mul.hpp>

Public Types
typedef boost::mpl::vector< expr... >	v_expr
	Transform from variadic template to boost mpl vector.
typedef boost::mpl::size< v_expr >::type	v_sz
	size of v_expr
typedef boost::mpl::at< v_expr, boost::mpl::int_< v_sz::type::value-1 > >::type	Sys_eqs
	type on which this expression operate

Static Public Member Functions
static void	value (const grid_dist_id< Sys_eqs::dims, typename Sys_eqs::stype, aggregate< size_t >, typename Sys_eqs::b_grid::decomposition::extended_type > &g_map, grid_dist_key_dx< Sys_eqs::dims > &kmap, const grid_sm< Sys_eqs::dims, void > &gs, typename Sys_eqs::stype(&spacing)[Sys_eqs::dims], std::unordered_map< long int, typename Sys_eqs::stype > &cols, typename Sys_eqs::stype coeff)
	Calculate which colums of the Matrix are non zero.
static grid_key_dx< Sys_eqs::dims >	position (grid_key_dx< Sys_eqs::dims > &pos, const grid_sm< Sys_eqs::dims, void > &gs, const comb< Sys_eqs::dims >(&s_pos)[Sys_eqs::nvar])
	Calculate the position in the cell where the mul operator is performed.

Member Typedef Documentation

Sys_eqs

template<typename ... expr>

typedef boost::mpl::at<v_expr,boost::mpl::int_<v_sz::type::value-1>>::type mul< expr >::Sys_eqs

type on which this expression operate

Definition at line 128 of file mul.hpp.

v_expr

template<typename ... expr>

typedef boost::mpl::vector<expr... > mul< expr >::v_expr

Transform from variadic template to boost mpl vector.

Definition at line 122 of file mul.hpp.

v_sz

template<typename ... expr>

typedef boost::mpl::size<v_expr>::type mul< expr >::v_sz

size of v_expr

Definition at line 125 of file mul.hpp.

Member Function Documentation

position()

template<typename ... expr>

static grid_key_dx< Sys_eqs::dims > mul< expr >::position ( grid_key_dx< Sys_eqs::dims > &  pos, const grid_sm< Sys_eqs::dims, void > &  gs, const comb< Sys_eqs::dims >(&)  s_pos[Sys_eqs::nvar]  )

inlinestatic

Calculate the position in the cell where the mul operator is performed.

it just return the position of the staggered property in the last expression

Parameters

pos	position where we are calculating the derivative
gs	Grid info
s_pos	staggered position of the properties

Definition at line 167 of file mul.hpp.

value()

template<typename ... expr>

static void mul< expr >::value ( const grid_dist_id< Sys_eqs::dims, typename Sys_eqs::stype, aggregate< size_t >, typename Sys_eqs::b_grid::decomposition::extended_type > &  g_map, grid_dist_key_dx< Sys_eqs::dims > &  kmap, const grid_sm< Sys_eqs::dims, void > &  gs, typename Sys_eqs::stype(&)  spacing[Sys_eqs::dims], std::unordered_map< long int, typename Sys_eqs::stype > &  cols, typename Sys_eqs::stype  coeff  )

inlinestatic

Calculate which colums of the Matrix are non zero.

Parameters

g_map	mapping grid
kmap	position where the multiplication is calculated
gs	Grid info
spacing	of the grid
cols	non-zero colums calculated by the function
coeff	coefficent (constant in front of the derivative)

Last element of multiplication

Definition at line 140 of file mul.hpp.

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

• openfpm_numerics/src/FiniteDifference/mul.hpp