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  1. #include <iostream>
  2. #include <algorithm>
  3. using namespace std;
  4.  
  5. class Seconds;
  6.  
  7. class Hours {
  8.         unsigned long long _hours;
  9.     public:
  10.         Hours(unsigned long long hours) : _hours(hours) { }
  11.  
  12.         unsigned long long getHours() const {
  13.             return this->_hours;
  14.         }
  15. };
  16.  
  17. class Seconds {
  18.         unsigned long long _seconds;
  19.     public:
  20.         Seconds(unsigned long long seconds) : _seconds(seconds) { }
  21.  
  22.         unsigned long long getSeconds() const {
  23.             return this->_seconds;
  24.         }
  25.  
  26.         Seconds& operator= (const unsigned long long& ull);
  27. };
  28.  
  29. unsigned long long operator+(const Hours& hours, const Seconds& seconds)
  30. {
  31.     return hours.getHours() + seconds.getSeconds();
  32. }
  33.  
  34. Hours operator "" _h(unsigned long long hours) {
  35.     return Hours(hours);
  36. }
  37.  
  38. Seconds operator "" _s(unsigned long long seconds) {
  39.     return Seconds(seconds);
  40. }
  41.  
  42. Seconds& Seconds::operator= (const unsigned long long& ull)
  43. {
  44.     // do the copy
  45.     *this = Seconds(ull);
  46.  
  47.     // return the existing object
  48.     return *this;
  49. }
  50.  
  51. int main() {
  52.     Seconds s(1_h + 10_s);
  53.     cout <<s.getSeconds()<<endl;
  54.     s = 2_h + 60_s;
  55.     cout <<s.getSeconds()<<endl;
  56.     return 0;
  57. }
Success #stdin #stdout 0s 2852KB
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https://ideone.com/Qp8Eqg
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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