matheval::detail::expr_ast< real_t > Struct Template Reference

Abstract Syntax Tree. More...

#include <matheval.hpp>

Collaboration diagram for matheval::detail::expr_ast< real_t >:

Public Types
using	tree_t

Public Member Functions
	expr_ast ()
	Default constructor.
template<typename Expr>
	expr_ast (Expr other)
	Copy constructor.
expr_ast &	operator+= (expr_ast const &rhs)
	Add a tree.
expr_ast &	operator-= (expr_ast const &rhs)
	subtract a tree
expr_ast &	operator*= (expr_ast const &rhs)
	Multiply by a tree.
expr_ast &	operator/= (expr_ast const &rhs)
	Divide by a tree.

Public Attributes
tree_t	tree
	AST storage.

Detailed Description

template<typename real_t>
struct matheval::detail::expr_ast< real_t >

Abstract Syntax Tree.

Stores the abstract syntax tree (AST) of the parsed mathematical expression.

Definition at line 96 of file matheval.hpp.

Member Typedef Documentation

tree_t

template<typename real_t>

using matheval::detail::expr_ast< real_t >::tree_t

Initial value:

 boost::variant<
                nil 
                , real_t
                , std::string
                , boost::recursive_wrapper<expr_ast<real_t>>
                , boost::recursive_wrapper<binary_op<real_t>>
                , boost::recursive_wrapper<unary_op<real_t>>
                >

Definition at line 98 of file matheval.hpp.

Constructor & Destructor Documentation

expr_ast() [1/2]

template<typename real_t>

matheval::detail::expr_ast< real_t >::expr_ast ( )

inline

Default constructor.

Initializes the tree to a nil value to indicate inconsistent state.

Definition at line 121 of file matheval.hpp.

References tree.

Referenced by operator*=(), operator+=(), operator-=(), and operator/=().

expr_ast() [2/2]

template<typename real_t>

template<typename Expr>

matheval::detail::expr_ast< real_t >::expr_ast ( Expr other )

inline

Copy constructor.

Deep copies the syntax tree.

Definition at line 128 of file matheval.hpp.

References tree.

Member Function Documentation

operator*=()

template<typename real_t>

expr_ast< real_t > & matheval::detail::expr_ast< real_t >::operator*=

(

expr_ast< real_t > const &

rhs

)

Multiply by a tree.

Definition at line 191 of file matheval.hpp.

References expr_ast(), and tree.

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operator+=()

template<typename real_t>

expr_ast< real_t > & matheval::detail::expr_ast< real_t >::operator+=

(

expr_ast< real_t > const &

rhs

)

Add a tree.

Definition at line 179 of file matheval.hpp.

References expr_ast(), and tree.

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operator-=()

template<typename real_t>

expr_ast< real_t > & matheval::detail::expr_ast< real_t >::operator-=

(

expr_ast< real_t > const &

rhs

)

subtract a tree

Definition at line 185 of file matheval.hpp.

References expr_ast(), and tree.

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operator/=()

template<typename real_t>

expr_ast< real_t > & matheval::detail::expr_ast< real_t >::operator/=

(

expr_ast< real_t > const &

rhs

)

Divide by a tree.

Definition at line 197 of file matheval.hpp.

References expr_ast(), and tree.

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Member Data Documentation

tree

template<typename real_t>

tree_t matheval::detail::expr_ast< real_t >::tree

AST storage.

The syntax tree can hold various types. Numbers (real_t), variables (std::string), the recursive tree itself (expr_ast), binary operators (binary_op), and unary operators (unary_op).

Definition at line 114 of file matheval.hpp.

Referenced by expr_ast(), expr_ast(), matheval::detail::ConstantFolder< real_t >::operator()(), matheval::detail::eval_ast< real_t >::operator()(), operator*=(), operator+=(), operator-=(), and operator/=().

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

• matheval.hpp