fork(1) download 
  1. #include <iostream>
  2. //#include "Decaf.h"
  3. //#include "Espresso.h"
  4. //#include "SoyDecorator.h"
  5. //#include "CaramelDecorator.h"
  6.  
  7. class Beverage
  8. {
  9. public:
  10.  
  11. 	virtual std::string GetDescription() const = 0;
  12. 	virtual int GetCost() const = 0;
  13. };
  14.  
  15. class CondimentDecorator : public Beverage
  16. {
  17. public:
  18.  
  19. 	Beverage* beverage;
  20. 	CondimentDecorator(Beverage* beverage) : beverage(beverage) {}
  21. };
  22.  
  23. class Espresso : public Beverage
  24. {
  25. 	virtual std::string GetDescription() const override
  26. 	{
  27. 		return "Espresso";
  28. 	}
  29.  
  30. 	virtual int GetCost() const override
  31. 	{
  32. 		return 5;
  33. 	}
  34. };
  35.  
  36. class Decaf : public Beverage
  37. {
  38. 	virtual std::string GetDescription() const override
  39. 	{
  40. 		return "Decaf";
  41. 	}
  42.  
  43. 	virtual int GetCost() const override
  44. 	{
  45. 		return 4;
  46. 	}
  47. };
  48.  
  49. class CaramelDecorator : public CondimentDecorator
  50. {
  51. public:
  52.  
  53. 	CaramelDecorator(Beverage* beverage) : CondimentDecorator(beverage) {}
  54.  
  55. 	virtual std::string GetDescription() const override
  56. 	{
  57. 		return this->beverage->GetDescription() + " with Caramel";
  58. 	}
  59.  
  60. 	virtual int GetCost() const override
  61. 	{
  62. 		return this->beverage->GetCost() + 2;
  63. 	}
  64. };
  65.  
  66. class SoyDecorator : public CondimentDecorator
  67. {
  68. public:
  69.  
  70. 	SoyDecorator(Beverage* beverage) : CondimentDecorator(beverage) {}
  71.  
  72. 	virtual std::string GetDescription() const override
  73. 	{
  74. 		return this->beverage->GetDescription() + " with Soy";
  75. 	}
  76.  
  77. 	virtual int GetCost() const override
  78. 	{
  79. 		return this->beverage->GetCost() + 1;
  80. 	}
  81. };
  82.  
  83. int main()
  84. {
  85. 	Decaf* d = new Decaf;
  86. 	SoyDecorator* s = new SoyDecorator(d);
  87. 	CaramelDecorator* c = new CaramelDecorator(s);
  88. 	CaramelDecorator* cc = new CaramelDecorator(c);
  89.  
  90. 	std::cout << cc->GetDescription() << std::endl;
  91. 	std::cout << cc->GetCost() << std::endl;
  92. }
Success #stdin #stdout 0s 4544KB
comments (?)
stdin 
Standard input is empty
stdout 
Decaf with Soy with Caramel with Caramel
9
https://ideone.com/7fpGSp
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!