#include <number_impl.hpp>

Inheritance diagram for number_impl:

Public Member Functions
virtual	~number_impl ()

void	print (std::ostream &stream) const

std::string	to_string () const

void	save (std::ostream &stream) const

bool	equals (number_impl const &rhs) const

bool	less (number_impl const &rhs) const

std::shared_ptr< number_impl >	add (number_impl const &rhs)

std::shared_ptr< number_impl >	subtract (number_impl const &rhs)

std::shared_ptr< number_impl >	multiply (number_impl const &rhs)

std::shared_ptr< number_impl >	divide (number_impl const &rhs)

void	add_ref ()

void	del_ref ()

std::shared_ptr< number_impl >	promote (number_impl &rhs) const

virtual std::shared_ptr < number_impl >	promote_to_void ()

virtual std::shared_ptr < number_impl >	promote_to_long ()

virtual std::shared_ptr < number_impl >	promote_to_rational ()

virtual std::shared_ptr < number_impl >	promote_to_double ()

Static Public Member Functions
static std::shared_ptr < number_impl >	read_library (std::istream &stream)

Protected Member Functions
	number_impl ()

Private Member Functions
	number_impl (number_impl const &n)
	not implemented More...

number_impl &	operator= (number_impl const &n)
	not implemented More...

virtual std::string	do_to_string () const =0

virtual void	do_save (std::ostream &stream) const =0

virtual bool	do_equals (number_impl const &rhs) const =0

virtual bool	do_less (number_impl const &rhs) const =0

virtual std::shared_ptr < number_impl >	do_add (number_impl const &rhs)=0

virtual std::shared_ptr < number_impl >	do_subtract (number_impl const &rhs)=0

virtual std::shared_ptr < number_impl >	do_multiply (number_impl const &rhs)=0

virtual std::shared_ptr < number_impl >	do_divide (number_impl const &rhs)=0

virtual std::shared_ptr < number_impl >	do_promote (number_impl &rhs) const =0

Private Attributes
std::size_t	refcount_

Detailed Description

Definition at line 10 of file number_impl.hpp.

Constructor & Destructor Documentation

number_impl::~number_impl ( )

virtual

Definition at line 9 of file number_impl.cpp.

10 {}

number_impl::number_impl ( )

inlineprotected

Definition at line 54 of file number_impl.hpp.

54 {}

number_impl::number_impl ( number_impl const & n )

private

not implemented

Member Function Documentation

std::shared_ptr< number_impl > number_impl::add ( number_impl const & rhs )

Definition at line 74 of file number_impl.cpp.

References do_add().

 {
   return do_add(rhs);
 }

void number_impl::add_ref ( )

void number_impl::del_ref ( )

std::shared_ptr< number_impl > number_impl::divide ( number_impl const & rhs )

Definition at line 89 of file number_impl.cpp.

References do_divide().

 {
   return do_divide(rhs);
 }

virtual std::shared_ptr<number_impl> number_impl::do_add ( number_impl const & rhs )

privatepure virtual

Implemented in number_double, number_rational, number_long, and number_void.

Referenced by add().

virtual std::shared_ptr<number_impl> number_impl::do_divide ( number_impl const & rhs )

privatepure virtual

Implemented in number_double, number_rational, number_long, and number_void.

Referenced by divide().

virtual bool number_impl::do_equals ( number_impl const & rhs ) const

privatepure virtual

Implemented in number_double, number_rational, number_long, and number_void.

Referenced by equals().

virtual bool number_impl::do_less ( number_impl const & rhs ) const

privatepure virtual

Implemented in number_double, number_rational, number_long, and number_void.

Referenced by less().

virtual std::shared_ptr<number_impl> number_impl::do_multiply ( number_impl const & rhs )

privatepure virtual

Implemented in number_double, number_rational, number_long, and number_void.

Referenced by multiply().

virtual std::shared_ptr<number_impl> number_impl::do_promote ( number_impl & rhs ) const

privatepure virtual

Implemented in number_double, number_rational, number_long, and number_void.

Referenced by promote().

virtual void number_impl::do_save ( std::ostream & stream ) const

privatepure virtual

Implemented in number_double, number_rational, number_long, and number_void.

Referenced by save().

virtual std::shared_ptr<number_impl> number_impl::do_subtract ( number_impl const & rhs )

privatepure virtual

Implemented in number_double, number_rational, number_long, and number_void.

Referenced by subtract().

virtual std::string number_impl::do_to_string ( ) const

privatepure virtual

Implemented in number_double, number_rational, number_long, and number_void.

Referenced by to_string().

bool number_impl::equals ( number_impl const & rhs ) const

Definition at line 62 of file number_impl.cpp.

References do_equals().

 {
   return do_equals(rhs);
 }

bool number_impl::less ( number_impl const & rhs ) const

Definition at line 68 of file number_impl.cpp.

References do_less().

 {
   return do_less(rhs);
 }

std::shared_ptr< number_impl > number_impl::multiply ( number_impl const & rhs )

Definition at line 84 of file number_impl.cpp.

References do_multiply().

 {
   return do_multiply(rhs);
 }

number_impl& number_impl::operator= ( number_impl const & n )

private

not implemented

void number_impl::print ( std::ostream & stream ) const

Print in a human-readable form.

Definition at line 44 of file number_impl.cpp.

References to_string().

 {
   stream << to_string();
 }

std::shared_ptr< number_impl > number_impl::promote ( number_impl & rhs ) const

Promote rhs to match the type of this number. This function uses double-dispatch, so this number calls a virtual promote_to_*() function that notifies rhs of the desired type. If the desired type is "larger" than the type of rhs, the promote_to_*() function returns a new number_impl of the desired type. Otherwise, the function returns rhs.

Parameters

rhs	The right-hand operand of an arithmetic expression.

Definition at line 56 of file number_impl.cpp.

References do_promote().

 {
   return do_promote(rhs);
 }

std::shared_ptr< number_impl > number_impl::promote_to_double ( )

virtual

Reimplemented in number_rational, and number_long.

Definition at line 112 of file number_impl.cpp.

Referenced by number_double::do_promote().

 {
   return shared_from_this();
 }

std::shared_ptr< number_impl > number_impl::promote_to_long ( )

virtual

Definition at line 102 of file number_impl.cpp.

Referenced by number_long::do_promote().

 {
   return shared_from_this();
 }

std::shared_ptr< number_impl > number_impl::promote_to_rational ( )

virtual

Reimplemented in number_long.

Definition at line 107 of file number_impl.cpp.

Referenced by number_rational::do_promote().

 {
   return shared_from_this();
 }

std::shared_ptr< number_impl > number_impl::promote_to_void ( )

virtual

Reimplemented in number_double, number_rational, and number_long.

Definition at line 97 of file number_impl.cpp.

Referenced by number_void::do_promote().

 {
   return shared_from_this();
 }

std::shared_ptr< number_impl > number_impl::read_library ( std::istream & stream )

static

Read the number type from a library file, then create the proper kind of number.

Definition at line 18 of file number_impl.cpp.

Referenced by number::number().

 {
   std::string type{};
   if (not (stream >> type))
     throw calc_error{"malformed library, missing number type"};
 
   if (type == "void")
     return std::make_shared<number_void>();
 
   if (type == "long") {
     long long x{};
     if (not (stream >> x))
       throw calc_error{"malformed library, missing long value"};
     return std::make_shared<number_long>(x);
   }
 
   if (type == "double") {
     double x{};
     if (not (stream >> x))
       throw calc_error{"malformed library, missing double value"};
     return std::make_shared<number_double>(x);
   }
 
   throw calc_error{"malformed library, unknown number type: " + type};
 }

void number_impl::save ( std::ostream & stream ) const

Save a number to a library file.

Definition at line 12 of file number_impl.cpp.

References do_save().

 {
   do_save(stream);
 }

std::shared_ptr< number_impl > number_impl::subtract ( number_impl const & rhs )

Definition at line 79 of file number_impl.cpp.

References do_subtract().

 {
   return do_subtract(rhs);
 }

std::string number_impl::to_string ( ) const

Convert to a string.

Definition at line 50 of file number_impl.cpp.

References do_to_string().

Referenced by print().

 {
   return do_to_string();
 }

Member Data Documentation

std::size_t number_impl::refcount_

private

Definition at line 73 of file number_impl.hpp.

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

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation