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

Abstract Syntax Tree. More...

#include <matheval.hpp>

Public Types
using	tree_t = std::variant< nil, real_t, std::string, recursive_wrapper< expr_ast< real_t > >, recursive_wrapper< binary_op< real_t > >, recursive_wrapper< unary_op< real_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 128 of file matheval.hpp.

Member Typedef Documentation

tree_t

template<typename real_t >

using matheval::detail::expr_ast< real_t >::tree_t = std::variant< nil , real_t , std::string , recursive_wrapper<expr_ast<real_t> > , recursive_wrapper<binary_op<real_t> > , recursive_wrapper<unary_op<real_t> > >

Definition at line 130 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 153 of file matheval.hpp.

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 160 of file matheval.hpp.

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 265 of file matheval.hpp.

References matheval::detail::unary_op< real_t >::rhs.

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 253 of file matheval.hpp.

References matheval::detail::unary_op< real_t >::rhs.

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 259 of file matheval.hpp.

References matheval::detail::unary_op< real_t >::rhs.

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 271 of file matheval.hpp.

References matheval::detail::unary_op< real_t >::rhs.

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 146 of file matheval.hpp.

Referenced by matheval::detail::eval_ast< real_t >::operator()(), matheval::detail::ConstantFolder< real_t >::operator()(), and matheval::Parser< real_t >::optimize().

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

• src/Classic/Utilities/MSLang/matheval.hpp