< 后缀式的元素: 操作数, 操作符 More...

Public Types
enum	Item_type { Item_type::Operand, Item_type::Operator }
	< 项的类型 More...

enum	Operator_type : int8_t { Operator_type::NAO = (int8_t)0xFF, Operator_type::Add = 0x10, Operator_type::Sub = 0x11, Operator_type::Mul = 0x20, Operator_type::Div = 0x21, Operator_type::Exp = 0x30, Operator_type::Oparen = 0x01, Operator_type::Cparen = 0x02 }

Public Member Functions
	Item (Item_type item_type, Operator_type operator_type, double operand_val=NAN)
	Construct a new Item object. More...

	Item (double operand_val)
	Construct a new Item object. More...

	Item (Operator_type op=Operator_type::NAO)
	Construct a new Item object. More...

bool	hasLoPriThan (const Item &rhs) const
	Item内嵌类的工具函数 More...

bool	isOperator () const
	是操作符 More...

bool	isOperand () const
	是操作数 More...

bool	isNAO () const
	是NAO? More...

int8_t	priority () const
	获取优先级. More...

Static Public Member Functions
static Item	nao ()
	获得一个NAO(非法操作符) More...

static Item	excOp (const Item &op, const Item &opL=nao(), const Item &opR=nao())
	执行一次运算. More...

Public Attributes
Item_type	item_type
	项的类型 More...

Operator_type	operator_type
	操作符类型 More...

double	operand_val = NAN
	操作数的值(为操作符时, 无效) More...

Static Public Attributes
static const int8_t	priOfAdd = static_cast<int8_t>(Operator_type::Add) >> 4
	二元加法的优先级(同减法) More...

static const int8_t	priOfMul = static_cast<int8_t>(Operator_type::Mul) >> 4
	二元乘法的优先级(同除法) More...

Friends
bool	operator== (const Item &lhs, const Item &rhs)
	operator== More...

Detailed Description

< 后缀式的元素: 操作数, 操作符

Definition at line 129 of file Rpn.hh.

Member Enumeration Documentation

◆ Item_type

enum RPN::Rpn_t::Item::Item_type

strong

< 项的类型

Enumerator
Operand	操作数
Operator	操作符

Definition at line 131 of file Rpn.hh.

◆ Operator_type

enum RPN::Rpn_t::Item::Operator_type : int8_t

strong

Enumerator
NAO	Not an operator(lowest priority): 0xFF. priority = 算术右移4位(得0 ~ 7, -1). 0: 未定义; -1: NAO; 1 ~ 7: 一般运算符, 7为最高优先级
Add	lowest(but NAO) priority: 0x01
Sub
Mul
Div
Exp	highest priority: 0x07
Oparen	undefine priority : 0x00
Cparen

Definition at line 137 of file Rpn.hh.

Constructor & Destructor Documentation

◆ Item() [1/3]

RPN::Rpn_t::Item::Item	(	Item_type	item_type,
		Operator_type	operator_type,
		double	operand_val = `NAN`
	)

inline

Construct a new Item object.

Parameters

item_type
operator_type
operand_val

Definition at line 165 of file Rpn.hh.

Referenced by nao().

Here is the caller graph for this function:

◆ Item() [2/3]

RPN::Rpn_t::Item::Item ( double operand_val )

inlineexplicit

Construct a new Item object.

构造一个操作数item

Parameters

operand_val

Definition at line 174 of file Rpn.hh.

◆ Item() [3/3]

RPN::Rpn_t::Item::Item ( Operator_type op = Operator_type::NAO )

inlineexplicit

Construct a new Item object.

构造一个操作符item(默认构造函数)

Parameters

op

Definition at line 183 of file Rpn.hh.

Member Function Documentation

◆ excOp()

Rpn_t::Item RPN::Rpn_t::Item::excOp	(	const Item &	op,
		const Item &	opL = `nao()`,
		const Item &	opR = `nao()`
	)

static

执行一次运算.

Note: 一元运算符, arg2或arg3为NAO.

Parameters

op
opL
opR

Returns: Item

Definition at line 702 of file Rpn.hh.

References isNAO(), isOperand(), isOperator(), operand_val, and operator_type.

Referenced by RPN::Rpn_t::calcVal().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ hasLoPriThan()

bool RPN::Rpn_t::Item::hasLoPriThan ( const Item & rhs ) const

Item内嵌类的工具函数

运算符优先级lhs < rhs. NAO(非法运算符)的优先级为最低

Parameters

rhs

Returns: true; false

Definition at line 685 of file Rpn.hh.

References item_type, Operator, and priority().

Referenced by RPN::Rpn_t::infixListToPostfixList().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ isNAO()

bool RPN::Rpn_t::Item::isNAO ( ) const

inline

是NAO?

Note: 操作数不是NAO

Returns: true; false

Definition at line 220 of file Rpn.hh.

References isOperator(), NAO, and operator_type.

Referenced by excOp(), and RPN::Rpn_t::infixListToPostfixList().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ isOperand()

bool RPN::Rpn_t::Item::isOperand ( ) const

inline

是操作数

Returns: true 是操作数; false 非操作数

Definition at line 211 of file Rpn.hh.

References item_type, and Operand.

Referenced by excOp().

Here is the caller graph for this function:

◆ isOperator()

bool RPN::Rpn_t::Item::isOperator ( ) const

inline

是操作符

Returns: true 是操作符; false 不是操作符

Definition at line 203 of file Rpn.hh.

References item_type, and Operator.

Referenced by excOp(), and isNAO().

Here is the caller graph for this function:

◆ nao()

static Item RPN::Rpn_t::Item::nao ( )

inlinestatic

获得一个NAO(非法操作符)

Returns: Item

Definition at line 227 of file Rpn.hh.

References Item(), NAO, and Operator.

Referenced by RPN::Rpn_t::infixListToPostfixList().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ priority()

int8_t RPN::Rpn_t::Item::priority ( ) const

inline

获取优先级.

Note: 有效: -1(NAO), 0(未定义), 1~7(一般运算符)

Returns: int8_t

Definition at line 235 of file Rpn.hh.

References operator_type.

Referenced by hasLoPriThan(), and RPN::Rpn_t::infixListToPostfixList().

Here is the caller graph for this function:

Friends And Related Function Documentation

◆ operator==

bool operator==	(	const Item &	lhs,
		const Item &	rhs
	)

friend

operator==

Parameters

lhs
rhs

Returns: true; false

Definition at line 740 of file Rpn.hh.

Member Data Documentation

◆ item_type

Item_type RPN::Rpn_t::Item::item_type

项的类型

Definition at line 154 of file Rpn.hh.

Referenced by hasLoPriThan(), isOperand(), isOperator(), RPN::Rpn_t::itemToStr(), and RPN::operator==().

◆ operand_val

double RPN::Rpn_t::Item::operand_val = NAN

操作数的值(为操作符时, 无效)

Definition at line 156 of file Rpn.hh.

Referenced by RPN::Rpn_t::calcVal(), excOp(), RPN::Rpn_t::itemToStr(), and RPN::operator==().

◆ operator_type

Operator_type RPN::Rpn_t::Item::operator_type

操作符类型

Definition at line 155 of file Rpn.hh.

Referenced by excOp(), RPN::Rpn_t::infixListToPostfixList(), isNAO(), RPN::Rpn_t::itemToStr(), RPN::operator==(), and priority().

◆ priOfAdd

const int8_t RPN::Rpn_t::Item::priOfAdd = static_cast<int8_t>(Operator_type::Add) >> 4

static

二元加法的优先级(同减法)

Definition at line 252 of file Rpn.hh.

Referenced by RPN::Rpn_t::infixListToPostfixList().

◆ priOfMul

const int8_t RPN::Rpn_t::Item::priOfMul = static_cast<int8_t>(Operator_type::Mul) >> 4

static

二元乘法的优先级(同除法)

Definition at line 258 of file Rpn.hh.

Referenced by RPN::Rpn_t::infixListToPostfixList().

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

include/Rpn.hh

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Static Public Attributes

Friends

Detailed Description

Member Enumeration Documentation

◆ Item_type

◆ Operator_type

Constructor & Destructor Documentation

◆ Item() [1/3]

◆ Item() [2/3]

◆ Item() [3/3]

Member Function Documentation

◆ excOp()

◆ hasLoPriThan()

◆ isNAO()

◆ isOperand()

◆ isOperator()

◆ nao()

◆ priority()

Friends And Related Function Documentation

◆ operator==

Member Data Documentation

◆ item_type

◆ operand_val

◆ operator_type

◆ priOfAdd

◆ priOfMul