exprtk::expression< T > Class Template Reference

#include <exprtk.hpp>

Collaboration diagram for exprtk::expression< T >:

Classes
struct	control_block

Public Types
typedef results_context< T >	results_context_t

Public Member Functions
	expression ()
	expression (const expression< T > &e)
	expression (const symbol_table< T > &symbol_table)
expression< T > &	operator= (const expression< T > &e)
bool	operator== (const expression< T > &e) const
bool	operator! () const
expression< T > &	release ()
	~expression ()
T	value () const
T	operator() () const
	operator T () const
	operator bool () const
bool	register_symbol_table (symbol_table< T > &st)
const symbol_table< T > &	get_symbol_table (const std::size_t &index=0) const
symbol_table< T > &	get_symbol_table (const std::size_t &index=0)
std::size_t	num_symbol_tables () const
const results_context_t &	results () const
bool	return_invoked () const

Private Types
typedef details::expression_node< T > *	expression_ptr
typedef details::vector_holder< T > *	vector_holder_ptr
typedef std::vector< symbol_table< T > >	symtab_list_t

Private Member Functions
symtab_list_t	get_symbol_table_list () const
void	set_expression (const expression_ptr expr)
void	register_local_var (expression_ptr expr)
void	register_local_var (vector_holder_ptr vec_holder)
void	register_local_data (void *data, const std::size_t &size=0, const std::size_t data_mode=0)
const control_block::local_data_list_t &	local_data_list ()
void	register_return_results (results_context_t *rc)
void	set_retinvk (bool *retinvk_ptr)

Private Attributes
control_block *	control_block_
symtab_list_t	symbol_table_list_

Friends
class	parser< T >
class	expression_helper< T >
class	function_compositor< T >
template<typename TT>
bool	is_valid (const expression< TT > &expr)

Detailed Description

template<typename T>
class exprtk::expression< T >

Definition at line 21831 of file exprtk.hpp.

Member Typedef Documentation

expression_ptr

template<typename T>

typedef details::expression_node<T>* exprtk::expression< T >::expression_ptr

private

Definition at line 21835 of file exprtk.hpp.

results_context_t

template<typename T>

typedef results_context<T> exprtk::expression< T >::results_context_t

Definition at line 22100 of file exprtk.hpp.

symtab_list_t

template<typename T>

typedef std::vector<symbol_table<T> > exprtk::expression< T >::symtab_list_t

private

Definition at line 21837 of file exprtk.hpp.

vector_holder_ptr

template<typename T>

typedef details::vector_holder<T>* exprtk::expression< T >::vector_holder_ptr

private

Definition at line 21836 of file exprtk.hpp.

Constructor & Destructor Documentation

expression() [1/3]

template<typename T>

exprtk::expression< T >::expression ( )

inline

Definition at line 21977 of file exprtk.hpp.

      : control_block_(0)
      {
         set_expression(new details::null_node<T>());
      }

expression() [2/3]

template<typename T>

exprtk::expression< T >::expression ( const expression< T > & e )

inline

Definition at line 21983 of file exprtk.hpp.

      : control_block_    (e.control_block_    )
      , symbol_table_list_(e.symbol_table_list_)
      {
         control_block_->ref_count++;
      }

expression() [3/3]

template<typename T>

exprtk::expression< T >::expression ( const symbol_table< T > & symbol_table )

inlineexplicit

Definition at line 21990 of file exprtk.hpp.

      : control_block_(0)
      {
         set_expression(new details::null_node<T>());
         symbol_table_list_.push_back(symbol_table);
      }

~expression()

template<typename T>

exprtk::expression< T >::~expression ( )

inline

Definition at line 22043 of file exprtk.hpp.

      {
         control_block::destroy(control_block_);
      }

Member Function Documentation

get_symbol_table() [1/2]

template<typename T>

symbol_table< T > & exprtk::expression< T >::get_symbol_table ( const std::size_t & index = 0 )

inline

Definition at line 22090 of file exprtk.hpp.

      {
         return symbol_table_list_[index];
      }

get_symbol_table() [2/2]

template<typename T>

const symbol_table< T > & exprtk::expression< T >::get_symbol_table ( const std::size_t & index = 0 ) const

inline

Definition at line 22085 of file exprtk.hpp.

      {
         return symbol_table_list_[index];
      }

get_symbol_table_list()

template<typename T>

symtab_list_t exprtk::expression< T >::get_symbol_table_list ( ) const

inlineprivate

Definition at line 22124 of file exprtk.hpp.

      {
         return symbol_table_list_;
      }

Referenced by exprtk::parser< Type >::compile().

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local_data_list()

template<typename T>

const control_block::local_data_list_t & exprtk::expression< T >::local_data_list ( )

inlineprivate

Definition at line 22198 of file exprtk.hpp.

      {
         if (control_block_)
         {
            return control_block_->local_data_list;
         }
         else
         {
            static typename control_block::local_data_list_t null_local_data_list;
            return null_local_data_list;
         }
      }

Referenced by exprtk::function_compositor< T >::base_func::setup().

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num_symbol_tables()

template<typename T>

std::size_t exprtk::expression< T >::num_symbol_tables ( ) const

inline

Definition at line 22095 of file exprtk.hpp.

      {
         return symbol_table_list_.size();
      }

operator bool()

template<typename T>

exprtk::expression< T >::operator bool ( ) const

inline

Definition at line 22066 of file exprtk.hpp.

      {
         return details::is_true(value());
      }

operator T()

template<typename T>

exprtk::expression< T >::operator T ( ) const

inline

Definition at line 22061 of file exprtk.hpp.

      {
         return value();
      }

operator!()

template<typename T>

bool exprtk::expression< T >::operator! ( ) const

inline

Definition at line 22027 of file exprtk.hpp.

      {
         return (
                  (0 == control_block_      ) ||
                  (0 == control_block_->expr)
                );
      }

operator()()

template<typename T>

T exprtk::expression< T >::operator() ( ) const

inline

Definition at line 22056 of file exprtk.hpp.

      {
         return value();
      }

operator=()

template<typename T>

expression< T > & exprtk::expression< T >::operator= ( const expression< T > & e )

inline

Definition at line 21997 of file exprtk.hpp.

      {
         if (this != &e)
         {
            if (control_block_)
            {
               if (
                    (0 !=   control_block_->ref_count) &&
                    (0 == --control_block_->ref_count)
                  )
               {
                  delete control_block_;
               }
 
               control_block_ = 0;
            }
 
            control_block_ = e.control_block_;
            control_block_->ref_count++;
            symbol_table_list_ = e.symbol_table_list_;
         }
 
         return *this;
      }

operator==()

template<typename T>

bool exprtk::expression< T >::operator== ( const expression< T > & e ) const

inline

Definition at line 22022 of file exprtk.hpp.

      {
         return (this == &e);
      }

register_local_data()

template<typename T>

void exprtk::expression< T >::register_local_data ( void * data, const std::size_t & size = 0, const std::size_t data_mode = 0 )

inlineprivate

Definition at line 22175 of file exprtk.hpp.

      {
         if (data)
         {
            if (control_block_)
            {
               typename control_block::data_type dt = control_block::e_data;
 
               switch (data_mode)
               {
                  case 0 : dt = control_block::e_data;    break;
                  case 1 : dt = control_block::e_vecdata; break;
                  case 2 : dt = control_block::e_string;  break;
               }
 
               control_block_->
                  local_data_list.push_back(
                     typename expression<T>::control_block::
                        data_pack(reinterpret_cast<void*>(data), dt, size));
            }
         }
      }

register_local_var() [1/2]

template<typename T>

void exprtk::expression< T >::register_local_var ( expression_ptr expr )

inlineprivate

Definition at line 22145 of file exprtk.hpp.

      {
         if (expr)
         {
            if (control_block_)
            {
               control_block_->
                  local_data_list.push_back(
                     typename expression<T>::control_block::
                        data_pack(reinterpret_cast<void*>(expr),
                                  control_block::e_expr));
            }
         }
      }

register_local_var() [2/2]

template<typename T>

void exprtk::expression< T >::register_local_var ( vector_holder_ptr vec_holder )

inlineprivate

Definition at line 22160 of file exprtk.hpp.

      {
         if (vec_holder)
         {
            if (control_block_)
            {
               control_block_->
                  local_data_list.push_back(
                     typename expression<T>::control_block::
                        data_pack(reinterpret_cast<void*>(vec_holder),
                                  control_block::e_vecholder));
            }
         }
      }

register_return_results()

template<typename T>

void exprtk::expression< T >::register_return_results ( results_context_t * rc )

inlineprivate

Definition at line 22211 of file exprtk.hpp.

      {
         if (control_block_ && rc)
         {
            control_block_->results = rc;
         }
      }

register_symbol_table()

template<typename T>

bool exprtk::expression< T >::register_symbol_table ( symbol_table< T > & st )

inline

Definition at line 22071 of file exprtk.hpp.

      {
         for (std::size_t i = 0; i < symbol_table_list_.size(); ++i)
         {
            if (st == symbol_table_list_[i])
            {
               return false;
            }
         }
 
         symbol_table_list_.push_back(st);
         return true;
      }

Referenced by exprtk::details::collector_helper< T >::collection_pass(), exprtk::parser< Type >::compile(), exprtk::function_compositor< T >::compile_expression(), exprtk::compute(), exprtk::compute(), exprtk::compute(), exprtk::compute(), load_expression(), main(), expression_processor< T >::process(), run_parse_benchmark(), run_test01(), run_test02(), run_test04(), run_test14(), test_expression(), test_gen(), and vector_randu().

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release()

template<typename T>

expression< T > & exprtk::expression< T >::release ( )

inline

Definition at line 22035 of file exprtk.hpp.

      {
         exprtk::details::dump_ptr("expression::release", this);
         control_block::destroy(control_block_);
 
         return (*this);
      }

results()

template<typename T>

const results_context_t & exprtk::expression< T >::results ( ) const

inline

Definition at line 22102 of file exprtk.hpp.

      {
         if (control_block_->results)
            return (*control_block_->results);
         else
         {
            static const results_context_t null_results;
            return null_results;
         }
      }

Referenced by expression_processor< T >::process().

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return_invoked()

template<typename T>

bool exprtk::expression< T >::return_invoked ( ) const

inline

Definition at line 22113 of file exprtk.hpp.

      {
         assert(control_block_);
 
         return control_block_                 &&
                control_block_->return_invoked &&
                (*control_block_->return_invoked);
      }

set_expression()

template<typename T>

void exprtk::expression< T >::set_expression ( const expression_ptr expr )

inlineprivate

Definition at line 22129 of file exprtk.hpp.

      {
         if (expr)
         {
            if (control_block_)
            {
               if (0 == --control_block_->ref_count)
               {
                  delete control_block_;
               }
            }
 
            control_block_ = control_block::create(expr);
         }
      }

Referenced by exprtk::parser< Type >::compile(), exprtk::symtab_list_t< T >::expression(), and exprtk::symtab_list_t< T >::expression().

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set_retinvk()

template<typename T>

void exprtk::expression< T >::set_retinvk ( bool * retinvk_ptr )

inlineprivate

Definition at line 22219 of file exprtk.hpp.

      {
         if (control_block_)
         {
            control_block_->return_invoked = retinvk_ptr;
         }
      }

Referenced by exprtk::parser< Type >::compile().

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value()

template<typename T>

T exprtk::expression< T >::value ( ) const

inline

Definition at line 22048 of file exprtk.hpp.

      {
         assert(control_block_      );
         assert(control_block_->expr);
 
         return control_block_->expr->value();
      }

Referenced by exprtk::compute(), exprtk::compute(), exprtk::compute(), exprtk::compute(), exprtk::symtab_list_t< T >::operator bool(), exprtk::symtab_list_t< T >::operator T(), exprtk::symtab_list_t< T >::operator()(), expression_processor< T >::process(), run_exprtk_benchmark(), run_test01(), run_test02(), run_test04(), test_expression(), and vector_randu().

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Friends And Related Symbol Documentation

expression_helper< T >

template<typename T>

friend class expression_helper< T >

friend

Definition at line 22228 of file exprtk.hpp.

function_compositor< T >

template<typename T>

friend class function_compositor< T >

friend

Definition at line 22228 of file exprtk.hpp.

is_valid

template<typename T>

template<typename TT>

bool is_valid ( const expression< TT > & expr )

friend

parser< T >

template<typename T>

friend class parser< T >

friend

Definition at line 22228 of file exprtk.hpp.

Member Data Documentation

control_block_

template<typename T>

control_block* exprtk::expression< T >::control_block_

private

Definition at line 22227 of file exprtk.hpp.

Referenced by exprtk::expression_helper< T >::is_assert(), exprtk::expression_helper< T >::is_binary(), exprtk::expression_helper< T >::is_function(), exprtk::expression_helper< T >::is_literal(), exprtk::expression_helper< T >::is_null(), exprtk::expression_helper< T >::is_sf3ext(), exprtk::expression_helper< T >::is_sf4ext(), exprtk::expression_helper< T >::is_string(), exprtk::expression_helper< T >::is_type(), exprtk::expression_helper< T >::is_unary(), exprtk::is_valid(), exprtk::expression_helper< T >::is_vararg(), exprtk::expression_helper< T >::is_variable(), and exprtk::expression_helper< T >::match_type_sequence().

symbol_table_list_

template<typename T>

symtab_list_t exprtk::expression< T >::symbol_table_list_

private

Definition at line 22228 of file exprtk.hpp.

---

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

• exprtk/exprtk.hpp