A wrapper around plExpression infrastructure to evaluate simple math expressions. More...

Public Member Functions
	plMathExpression ()
	Creates a new invalid math expression.

	plMathExpression (plStringView sExpressionString)
	Initializes using a given expression.

void	Reset (plStringView sExpressionString)
	Reinitializes using the given expression.

bool	IsValid () const
	Whether the expression is valid and can be evaluated.

plStringView	GetExpressionString () const
	Returns the original expression string that this MathExpression can evaluate.

float	Evaluate (plArrayPtr< Input > inputs=plArrayPtr< Input >())
	Evaluates parsed expression with the given inputs.

Detailed Description

A wrapper around plExpression infrastructure to evaluate simple math expressions.

Constructor & Destructor Documentation

plMathExpression::plMathExpression ( )

default

Creates a new invalid math expression.

Need to call Reset before you can do anything with it.

plMathExpression::plMathExpression ( plStringView sExpressionString )

explicit

Initializes using a given expression.

If anything goes wrong it is logged and the math expression is in an invalid state.

Parameters

log	If null, default log interface will be used.

float plMathExpression::Evaluate ( plArrayPtr< Input > inputs = plArrayPtr<Input>() )

Evaluates parsed expression with the given inputs.

Only way this function can fail is if the expression was not valid.

void plMathExpression::Reset ( plStringView sExpressionString )

Reinitializes using the given expression.

An empty string or nullptr are considered to be 'invalid' expressions.

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