TensorExpressions::NumberAsExpression Struct Reference

Defines an expression representing a double More...

#include <NumberAsExpression.hpp>

Public Types
using	type = double
using	symmetry = tmpl::list<>
using	index_list = tmpl::list<>
using	args_list = tmpl::list<>

Public Member Functions
	NumberAsExpression (const double number)
template<typename... TensorIndices, Requires< sizeof...(TensorIndices)==0 > = nullptr>
double	get (const std::array< size_t, 0 > &) const noexcept
	Returns the number represented by the expression. More...

Static Public Attributes
static constexpr auto	num_tensor_indices = 0

Detailed Description

Defines an expression representing a double

Member Function Documentation

get()

template<typename... TensorIndices, Requires< sizeof...(TensorIndices)==0 > = nullptr>

double TensorExpressions::NumberAsExpression::get ( const std::array< size_t, 0 > &  ) const

inlinenoexcept

Returns the number represented by the expression.

Details

While a NumberAsExpression does not store a rank 0 Tensor, it does represent one. This is why this template is only defined for the case where TensorIndices is empty.

Template Parameters

TensorIndices

the TensorIndexs of the LHS tensor and RHS tensor expression

Returns: the number represented by this expression