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

Abstract Syntax Tree. More...

#include <matheval.hpp>

Public Types
using	tree_t = 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 > > >

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

Public Attributes
tree_t	tree
	AST storage. More...

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 95 of file matheval.hpp.

Member Typedef Documentation

tree_t

template<typename real_t >

using matheval::detail::expr_ast< real_t >::tree_t = 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 97 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 120 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 127 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 190 of file matheval.hpp.

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 178 of file matheval.hpp.

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 184 of file matheval.hpp.

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 196 of file matheval.hpp.

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 113 of file matheval.hpp.

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

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

• /Users/gsell/src/OPAL/src/src/Classic/Utilities/MSLang/matheval.hpp