struct evaluation represents the result of evaluating a putative expression. More...

#include <evaluation.h>

Public Member Functions
	evaluation (integer const &val)
	Explicitly construct from an `integer`. More...

	evaluation (int val)
	Explicitly construct from `int`. More...

bool	resolved () const
	Say whether the expression has been resolved.

bool	is_true () const
	Say whether the expression is true.

bool	is_false () const
	Say whether the expression is false.

bool	insoluble () const
	Say whether the expression is insoluble.

bool	empty () const
	Say whether the expression is empty.

unsigned short &	net_infix_ops ()
	Get/set the residual number of binary operators in the expression, after simplification. More...

integer const &	value () const
	Get the integral value of the expression.

void	set_value (integer const &val)
	Set the integral value of the expression.

void	set_value (int val)
	Set the integral value of the expression.

void	set_insoluble ()
	Classify the expression as insoluble.

void	set_empty ()
	Classify the expression as empty.

void	set_parens_off (size_t loff, size_t roff)
	Set the text offsets of surrounding parentheses.

void	clear_parens_off ()
	Clear the text offsets of surrounding parentheses.

size_t	lparen_off () const
	Get the text offset of the left parenthesis, if any. -1 if none.

size_t	rparen_off () const
	Get the text offset of the right parenthesis, if any. -1 if none.

Private Attributes
integer	_value {INT_UNDEF}
	The integer value of the evaluated expression if it is soluble.

unsigned short	_net_infix_ops = 0
	Number of binary operators remaining in the evaluated expression after simplification.

bool	_empty = false
	Is the expression empty?

bool	_insoluble = false
	Is the expression insoluble;.

size_t	_lparen_off = size_t(-1)

size_t	_rparen_off = size_t(-1)
	Text offset of right parenethesis, if any.

Detailed Description

struct evaluation represents the result of evaluating a putative expression.

Definition at line 48 of file evaluation.h.

Constructor & Destructor Documentation

evaluation::evaluation ( integer const & val )

inlineexplicit

Explicitly construct from an integer.

Parameters

val	An `integer` to be evaluated.

Definition at line 55 of file evaluation.h.

evaluation::evaluation ( int val )

inlineexplicit

Explicitly construct from int.

Parameters

val	An int to be evaluated.

Definition at line 61 of file evaluation.h.

unsigned short& evaluation::net_infix_ops ( )

inline

Get/set the residual number of binary operators in the expression, after simplification.

Definition at line 93 of file evaluation.h.

size_t evaluation::_lparen_off = size_t(-1)

private

Has the expression been simplified? Text offset of left parenethesis, if any

Definition at line 160 of file evaluation.h.

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