CalcContext Class Reference

Calculator context used to save the parsed expressions. More...

#include <expression.h>

List of all members.

Public Types
typedef std::map< std::string, double >	variablemap_type
	type of the variable storage
Public Member Functions
	~CalcContext ()
	free the saved expression trees
void	clearExpressions ()
	free all saved expression trees
bool	existsVariable (const std::string &varname) const
	check if the given variable name exists in the storage
double	getVariable (const std::string &varname) const
	return the given variable from the storage.
Public Attributes
variablemap_type	variables
	variable storage. maps variable string to doubles
std::vector< CalcNode * >	expressions
	array of unassigned expressions found by the parser.

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Detailed Description

Calculator context used to save the parsed expressions.

This context is passed along to the example::Driver class and fill during parsing via bison actions.

Definition at line 300 of file expression.h.

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Member Typedef Documentation

typedef std::map<std::string, double> CalcContext::variablemap_type

type of the variable storage

Definition at line 305 of file expression.h.

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Constructor & Destructor Documentation

CalcContext::~CalcContext

(

)

[inline]

free the saved expression trees

Definition at line 315 of file expression.h.

References clearExpressions().

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Member Function Documentation

void CalcContext::clearExpressions

(

)

[inline]

free all saved expression trees

Definition at line 321 of file expression.h.

References expressions.

Referenced by main(), and ~CalcContext().

bool CalcContext::existsVariable

(

const std::string &

varname

)

const [inline]

check if the given variable name exists in the storage

Definition at line 331 of file expression.h.

References variables.

Referenced by example::Parser::parse().

double CalcContext::getVariable

(

const std::string &

varname

)

const [inline]

return the given variable from the storage.

throws an exception if it does not exist.

Definition at line 338 of file expression.h.

References variables.

Referenced by example::Parser::parse().

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Member Data Documentation

std::vector<CalcNode*> CalcContext::expressions

array of unassigned expressions found by the parser.

these are then outputted to the user.

Definition at line 312 of file expression.h.

Referenced by clearExpressions(), main(), and example::Parser::parse().

variablemap_type CalcContext::variables

variable storage. maps variable string to doubles

Definition at line 308 of file expression.h.

Referenced by existsVariable(), getVariable(), and example::Parser::parse().

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

• src/expression.h