number_double Class Reference

#include <number_impl.hpp>

Inheritance diagram for number_double:

Public Member Functions
	number_double (double value)
double	value () const
virtual std::shared_ptr < number_impl >	promote_to_void ()
Public Member Functions inherited from number_impl
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_long ()
virtual std::shared_ptr < number_impl >	promote_to_rational ()
virtual std::shared_ptr < number_impl >	promote_to_double ()

Private Member Functions
virtual std::string	do_to_string () const
virtual void	do_save (std::ostream &stream) const
virtual bool	do_equals (number_impl const &rhs) const
virtual bool	do_less (number_impl const &rhs) const
virtual std::shared_ptr < number_impl >	do_add (number_impl const &rhs)
virtual std::shared_ptr < number_impl >	do_subtract (number_impl const &rhs)
virtual std::shared_ptr < number_impl >	do_multiply (number_impl const &rhs)
virtual std::shared_ptr < number_impl >	do_divide (number_impl const &rhs)
virtual std::shared_ptr < number_impl >	do_promote (number_impl &rhs) const

Private Attributes
double	value_

Additional Inherited Members
Static Public Member Functions inherited from number_impl
static std::shared_ptr < number_impl >	read_library (std::istream &stream)
Protected Member Functions inherited from number_impl
	number_impl ()

Detailed Description

Represent a floating-point value. Always use double to represent floating-point values.

Definition at line 147 of file number_impl.hpp.

Constructor & Destructor Documentation

number_double::number_double ( double  value )

inline

Definition at line 149 of file number_impl.hpp.

: number_impl(), value_(value) {}

Member Function Documentation

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

privatevirtual

Implements number_impl.

Definition at line 354 of file number_impl.cpp.

References value(), and value_.

{
  return std::make_shared<number_double>(value_ + dynamic_cast<number_double const&>(rhs).value());
}

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

privatevirtual

Implements number_impl.

Definition at line 369 of file number_impl.cpp.

References value(), and value_.

{
  double right{ dynamic_cast<number_double const&>(rhs).value() };
  if (right == 0.0)
    throw calc_error{"division by zero"};
  return std::make_shared<number_double>(value_ / right);
}

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

privatevirtual

Implements number_impl.

Definition at line 342 of file number_impl.cpp.

References value().

{
  return value() == dynamic_cast<number_double const&>(rhs).value();
}

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

privatevirtual

Implements number_impl.

Definition at line 348 of file number_impl.cpp.

References value().

{
  return value() < dynamic_cast<number_double const&>(rhs).value();
}

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

privatevirtual

Implements number_impl.

Definition at line 364 of file number_impl.cpp.

References value(), and value_.

{
  return std::make_shared<number_double>(value_ * dynamic_cast<number_double const&>(rhs).value());
}

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

privatevirtual

Implements number_impl.

Definition at line 377 of file number_impl.cpp.

References number_impl::promote_to_double().

{
  return rhs.promote_to_double();
}

void number_double::do_save ( std::ostream &  stream ) const

privatevirtual

Implements number_impl.

Definition at line 336 of file number_impl.cpp.

References value().

{
  stream << "double " << value() << ' ';
}

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

privatevirtual

Implements number_impl.

Definition at line 359 of file number_impl.cpp.

References value(), and value_.

{
  return std::make_shared<number_double>(value_ - dynamic_cast<number_double const&>(rhs).value());
}

std::string number_double::do_to_string ( ) const

privatevirtual

Implements number_impl.

Definition at line 328 of file number_impl.cpp.

References value().

{
  std::ostringstream stream{};
  stream << value();
  return stream.str();
}

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

virtual

Reimplemented from number_impl.

Definition at line 383 of file number_impl.cpp.

{
  return std::make_shared<number_void>();
}

double number_double::value ( ) const

inline

Definition at line 150 of file number_impl.hpp.

References value_.

Referenced by do_add(), do_divide(), do_equals(), do_less(), do_multiply(), do_save(), do_subtract(), and do_to_string().

{ return value_; }

Member Data Documentation

double number_double::value_

private

Definition at line 163 of file number_impl.hpp.

Referenced by do_add(), do_divide(), do_multiply(), do_subtract(), and value().

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

• number_impl.hpp
• number_impl.cpp