expression Struct Reference

Expression. More...

#include <expression.h>

Data Fields
union {
char *   identifier
long int   number
struct {
struct expression *   left
struct expression *   right
}   operands
}	content
expression_type	type

Related Functions
(Note that these are not member functions.)
expression *	expression_add (expression *a, expression *b)
	Add two expressions. More...
expression *	expression_alloc (void)
	Allocate and initialize an expression. More...
expression *	expression_and (expression *a, expression *b)
	Conjunction of two expressions. More...
void	expression_clean (expression *e)
	Clean an expression. More...
expression *	expression_copy (const expression *e)
	Copy an expression. More...
expression *	expression_div (expression *a, expression *b)
	Divide two expressions. More...
expression *	expression_eq (expression *a, expression *b)
	Equals. More...
void	expression_fprint (FILE *f, const expression *e)
	Write an expression to an output stream. More...
void	expression_free (expression *e)
	Free an expression. More...
expression *	expression_from_boolean (bool boolean)
	Create an expression from a boolean. More...
expression *	expression_from_identifier (const char *identifier)
	Create an expression from an identifier. More...
expression *	expression_from_number (long int number)
	Create an expression from a number. More...
expression *	expression_ge (expression *a, expression *b)
	Greater or equals. More...
bool	expression_get_boolean (const expression *e)
	Get an expression's boolean. More...
const char *	expression_get_identifier (const expression *e)
	Get an expression's identifier. More...
expression *	expression_get_left (const expression *e)
	Get an expression's left operand. More...
long int	expression_get_number (const expression *e)
	Get an expression's number. More...
expression *	expression_get_right (const expression *e)
	Get an expression's right operand. More...
expression_type	expression_get_type (const expression *e)
	Get an expression's type. More...
expression *	expression_gt (expression *a, expression *b)
	Greater than. More...
void	expression_init (expression *e)
	Initialize an expression. More...
bool	expression_is_boolean (const expression *e)
	Determine whether an expression is a boolean expression. More...
bool	expression_is_false (const expression *e)
	Determine whether an expression is false. More...
bool	expression_is_identifier (const expression *e)
	Determine whether an expression is an identifier. More...
bool	expression_is_number (const expression *e)
	Determine whether an expression is a number expression. More...
bool	expression_is_one (const expression *e)
	Determine whether an expression is 1. More...
bool	expression_is_true (const expression *e)
	Determine whether an expression is true. More...
bool	expression_is_zero (const expression *e)
	Determine whether an expression is 0. More...
expression *	expression_le (expression *a, expression *b)
	Lower or equals. More...
expression *	expression_lt (expression *a, expression *b)
	Lower than. More...
expression *	expression_max (expression *a, expression *b)
	Maximum of two expressions. More...
expression *	expression_min (expression *a, expression *b)
	Minimum of two expressions. More...
expression *	expression_mult (expression *a, expression *b)
	Multiply two expressions. More...
expression *	expression_ne (expression *a, expression *b)
	Differs. More...
expression *	expression_neg (expression *e)
	Negate an expression. More...
expression *	expression_not (expression *e)
	Not an expression. More...
expression *	expression_or (expression *a, expression *b)
	Disjunction of two expressions. More...
void	expression_print (const expression *e)
	Write an expression to stdout. More...
void	expression_set_boolean (expression *e, bool boolean)
	Set the boolean value of a boolean expression. More...
void	expression_set_identifier (expression *e, const char *identifier)
	Set the identifier of an identifier expression. More...
void	expression_set_left_operand (expression *e, expression *left)
	Set the left operand of a binary expression. More...
void	expression_set_number (expression *e, long int number)
	Set the value of a number expression. More...
void	expression_set_right_operand (expression *e, expression *right)
	Set the right operand of a binary expression. More...
void	expression_set_type (expression *e, expression_type t)
	Set the type of an expression. More...
expression *	expression_sub (expression *a, expression *b)
	Substract two expressions. More...
char *	expression_to_string (const expression *e)
	Convert an expression to a string. More...

Detailed Description

Expression.

Since

version 1.0.0

Field Documentation

union { ... } expression::content

The expression's content.

char* expression::identifier

The expression's identifier.

struct expression* expression::left

The left operand.

long int expression::number

The expression's number.

struct { ... } expression::operands

The expression's operands.

struct expression* expression::right

The right operand.

expression_type expression::type

The expression's type.