codi::ExpressionTraits::NumberOfActiveTypeArguments< Expr > Struct Template Reference

Counts the number of nodes that inherit from LhsExpressionInterface in the expression. More...

#include <expressionTraits.hpp>

Inheritance diagram for codi::ExpressionTraits::NumberOfActiveTypeArguments< Expr >:

Public Types
using	Base = CompileTimeTraversalLogic<size_t, NumberOfActiveTypeArguments<Expr>>
	Abbreviation for the base class type.
Public Types inherited from codi::CompileTimeTraversalLogic< size_t, NumberOfActiveTypeArguments< Expr > >
using	Impl
	See CompileTimeTraversalLogic.
using	ResultType
	See CompileTimeTraversalLogic.

Static Public Member Functions
template<typename Node , typename = ExpressionTraits::EnableIfLhsExpression<Node>>
static size_t constexpr	leaf ()
	Called for all leaf nodes in the expression.
Static Public Member Functions inherited from codi::CompileTimeTraversalLogic< size_t, NumberOfActiveTypeArguments< Expr > >
static ResultType constexpr	eval (Args &&... args)
	Start the evaluation of the logic on the given expression.
static ResultType constexpr	reduce (ResultType a, ResultType b)
	Reduction operation for the results of two links.
static ResultType constexpr	node (Args &&... args)
	Called for each node in the expression.
static ResultType constexpr	leaf (Args &&...)
	Called for all leaf nodes in the expression.
static ResultType constexpr	link (Args &&... args)
	Called for all links in the expression.

Static Public Attributes
static size_t constexpr	value = Base::template eval<Expr>()
	See NumberOfActiveTypeArguments.
Static Public Attributes inherited from codi::CompileTimeTraversalLogic< size_t, NumberOfActiveTypeArguments< Expr > >
static ResultType constexpr	NeutralElement
	Neutral element of the reduction.

Additional Inherited Members
Static Protected Member Functions inherited from codi::CompileTimeTraversalLogic< size_t, NumberOfActiveTypeArguments< Expr > >
static ResultType constexpr	toLinks (Args &&... args)
	Helper method which calls forEachLinkConstExpr on the node.
static ResultType constexpr	toNode (Args &&... args)
	Helper method to distinguish between leaf nodes and normal nodes.

Detailed Description

template<typename Expr>
struct codi::ExpressionTraits::NumberOfActiveTypeArguments< Expr >

Counts the number of nodes that inherit from LhsExpressionInterface in the expression.

Member Function Documentation

leaf()

template<typename Expr >

template<typename Node , typename = ExpressionTraits::EnableIfLhsExpression<Node>>

static size_t constexpr codi::ExpressionTraits::NumberOfActiveTypeArguments< Expr >::leaf ( )

inlinestaticconstexpr

Called for all leaf nodes in the expression.

Must be a constexpr.

Default: Returns NeutralElement.

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

• include/codi/traits/expressionTraits.hpp