spot::option_map Class Reference

Manage a map of options. More...

#include <spot/misc/optionmap.hh>

Collaboration diagram for spot::option_map:

Public Member Functions
const char *	parse_options (const char *options)
	Add the parsed options to the map. More...
int	get (const char *option, int def=0) const
	Get the value of option. More...
std::string	get_str (const char *option, std::string def={}) const
	Get the value of option. More...
int	operator[] (const char *option) const
	Get the value of option. More...
int	set (const char *option, int val, int def=0)
	Set the value of option to val. More...
void	set_if_unset (const char *option, int val)
	Set the value of option to val if it is unset. More...
std::string	set_str (const char *option, std::string val, std::string def={})
	Set the value of a string option to val. More...
void	report_unused_options () const
	Raise a runtime_error if some options have not been used. More...
void	set (const option_map &o)
	Acquire all the settings of o. More...
int &	operator[] (const char *option)
	Get a reference to the current value of option. More...

Friends
std::ostream &	operator<< (std::ostream &os, const option_map &m)
	Print the option_map m. More...

Detailed Description

Manage a map of options.

Each option is defined by a string and is associated to an integer value.

Member Function Documentation

get()

int spot::option_map::get	(	const char *	option,
		int	def = 0
	)		const

Get the value of option.

Returns

The value associated to option if it exists, def otherwise.

See also

operator[]()

get_str()

std::string spot::option_map::get_str	(	const char *	option,
		std::string	def = {}
	)		const

Get the value of option.

Returns

The value associated to option if it exists, def otherwise.

See also

operator[]()

operator[]() [1/2]

int& spot::option_map::operator[]

(

const char *

option

)

Get a reference to the current value of option.

operator[]() [2/2]

int spot::option_map::operator[]

(

const char *

option

)

const

Get the value of option.

Returns

The value associated to option if it exists, 0 otherwise.

See also

get()

parse_options()

const char* spot::option_map::parse_options

(

const char *

options

)

Add the parsed options to the map.

options are separated by a space, comma, semicolon or tabulation and can be optionally followed by an integer value (preceded by an equal sign). If not specified, the default value is 1.

The following three lines are equivalent.

optA !optB optC=4194304
optA=1, optB=0, optC=4096K
optC = 4M; optA !optB

Returns

A non-null pointer to the option for which an expected integer value cannot be parsed.

report_unused_options()

void spot::option_map::report_unused_options

(

)

const

Raise a runtime_error if some options have not been used.

set() [1/2]

int spot::option_map::set	(	const char *	option,
		int	val,
		int	def = 0
	)

Set the value of option to val.

Returns

The previous value associated to option if declared, or def otherwise.

set() [2/2]

void spot::option_map::set

(

const option_map &

o

)

Acquire all the settings of o.

set_if_unset()

void spot::option_map::set_if_unset	(	const char *	option,
		int	val
	)

Set the value of option to val if it is unset.

set_str()

std::string spot::option_map::set_str	(	const char *	option,
		std::string	val,
		std::string	def = {}
	)

Set the value of a string option to val.

Returns

The previous value associated to option if declared, or def otherwise.

Friends And Related Function Documentation

operator<<

std::ostream& operator<< ( std::ostream &  os, const option_map &  m  )

friend

Print the option_map m.

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

• spot/misc/optionmap.hh