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  1. #include <map>
  2. #include <iostream>
  3. #include <string>
  4.  
  5. class BaseOption {
  6. public:
  7. 	virtual ~BaseOption() {}
  8. };
  9.  
  10. template<typename T>
  11. class Option : public BaseOption {
  12. public:
  13. 	explicit Option(T* v) {value = v;}
  14. 	~Option() { delete value; }
  15. 	T* value;
  16. };
  17.  
  18. typedef std::map <std::string, BaseOption*> OptionMap;
  19.  
  20. OptionMap options_;
  21.  
  22. template<typename T>
  23. void Set(const std::string& option_, T* value) 
  24. {
  25. 	BaseOption*& option_member = options_[option_];
  26. 	delete option_member;
  27. 	option_member = new Option<T>(value);
  28. }
  29.  
  30. template<typename T>
  31. void printAll()
  32. {
  33. 	std::cout << "#Elem in Map " << options_.size() << std::endl;
  34.  
  35. 	OptionMap::const_iterator it;
  36. 	for (it = options_.begin(); it != options_.end(); ++it)
  37. 		std::cout << "Arg: " << it->first <<    "  Value: " << "  Pointer: " << it->second << 
  38. 		"  Pointer to value: " << static_cast<Option<T>*>(it->second)->value   << std::endl;
  39. }
  40.  
  41. using namespace std;
  42.  
  43. using namespace std;
  44.  
  45. int main() 
  46. {
  47. 	int tempval = 8000;
  48. 	cout << "Here is &tempVal " << &tempval << endl;
  49. 	Set<int>("IeAIf", &tempval);
  50. 	Set<int>("LcE8V", &tempval);
  51.  
  52. 	tempval = 16000;
  53. 	Set<int>("RVn1C", &tempval);
  54. 	Set<int>("XINa2", &tempval);
  55.  
  56. 	tempval = 1;
  57. 	Set<int>("st6Vz", &tempval);
  58. 	printAll<int>();
  59. }	
  60.  
Success #stdin #stdout 0s 3232KB
comments ()
stdin 
Standard input is empty
stdout 
Here is &tempVal 0xbfd1e1c8
#Elem in Map 5
Arg: IeAIf  Value:   Pointer: 0x9e08040  Pointer to value: 0xbfd1e1c8
Arg: LcE8V  Value:   Pointer: 0x9e08088  Pointer to value: 0xbfd1e1c8
Arg: RVn1C  Value:   Pointer: 0x9e080d0  Pointer to value: 0xbfd1e1c8
Arg: XINa2  Value:   Pointer: 0x9e08118  Pointer to value: 0xbfd1e1c8
Arg: st6Vz  Value:   Pointer: 0x9e08160  Pointer to value: 0xbfd1e1c8
https://ideone.com/jn5GtU
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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