vita::constant< std::string > Class Reference

Inherits vita::terminal.

Public Member Functions
	constant (const char c[], category_t t=0)
	constant (const std::string &c, category_t t=0)
std::string	display (terminal_param_t, format) const final
value_t	eval () const
value_t	eval (symbol_params &) const override
Public Member Functions inherited from vita::terminal
unsigned	arity () const final
virtual std::string	display (terminal_param_t, format=c_format) const
virtual terminal_param_t	init () const
	Used to initialize the internal parameter of the terminal. More...
virtual bool	parametric () const
	A parametric terminal needs an additional parameter to be evaluated. More...
	symbol (const std::string &, category_t=0)
Public Member Functions inherited from vita::symbol
virtual unsigned	arity () const =0
category_t	category () const
	The type (a.k.a. More...
void	category (category_t)
	Changes the category of a symbol. More...
virtual value_t	eval (symbol_params &) const =0
	Calculates the value of / performs the action associated with the symbol (it's implementation specific). More...
virtual bool	input () const
	An input variable is a feature from the learning domain. More...
virtual bool	is_valid () const
std::string	name () const
opcode_t	opcode () const
	An opcode is a unique, numerical session ID for a symbol. More...
double	penalty (core_interpreter *) const
	Used for automatic calculation of penalities due to broken constraints. More...
	symbol (const std::string &, category_t=0)
bool	terminal () const

Additional Inherited Members
Public Types inherited from vita::symbol
enum	format {   c_format , cpp_format , mql_format , python_format ,   sup_format }
	Symbol rendering format. More...
Static Public Member Functions inherited from vita::terminal
static const terminal *	cast (const symbol *)
	This is a short cut function. More...

Detailed Description

Definition at line 55 of file constant.h.

Constructor & Destructor Documentation

constant() [1/2]

vita::constant< std::string >::constant ( const std::string &  c, category_t  t = 0  )

inlineexplicit

Definition at line 58 of file constant.h.

constant() [2/2]

vita::constant< std::string >::constant ( const char  c[], category_t  t = 0  )

inlineexplicit

Definition at line 60 of file constant.h.

Member Function Documentation

display()

std::string vita::constant< std::string >::display ( terminal_param_t  v, format    ) const

inlinefinalvirtual

Parameters

[in]

v

additional informations regarding parametric symbols

Returns

a string representing the symbol

The v argument is required for parametric symbols (i.e. for a numeric terminal we have to print 123 rather than "NUMBER").

Reimplemented from vita::terminal.

Definition at line 63 of file constant.h.

eval() [1/2]

value_t vita::constant< std::string >::eval ( ) const

inline

Definition at line 76 of file constant.h.

eval() [2/2]

value_t vita::constant< std::string >::eval ( symbol_params &  ) const

inlineoverridevirtual

Returns

the value of the constant

Remarks

The argument is not used: the value of a constant is stored within the object and we don't need an interpreter to discover it.

Implements vita::symbol.

Definition at line 75 of file constant.h.

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

• constant.h