fork download
copy 
  1. #include <vector>
  2. #include <algorithm>
  3. #include <functional>
  4. #include <iostream>
  5.  
  6. // Fakes a "smart pointer" wrapper around data
  7. template <typename T>
  8. struct Ptr
  9. {
  10.     Ptr(T data) : data(data) {};
  11.     const T& operator*() const { return data; }
  12.  
  13. private:
  14.     T data;
  15. };
  16.  
  17. int main()
  18. {
  19.     std::vector<Ptr<double> > vIn;
  20.     vIn.push_back(Ptr<double>(5));
  21.     vIn.push_back(Ptr<double>(2));
  22.     vIn.push_back(Ptr<double>(6));
  23.  
  24.     using namespace std::placeholders;
  25.     std::sort(
  26.         vIn.begin(),
  27.         vIn.end(),
  28.         std::bind(
  29.             std::less<double>(),
  30.             std::bind(&Ptr<double>::operator*, _1),
  31.             std::bind(&Ptr<double>::operator*, _2)
  32.         )
  33.     );
  34.  
  35.     std::vector<Ptr<double>>::const_iterator it = vIn.begin(), end = vIn.end();
  36.     for ( ; it != end; ++it)
  37.         std::cout << ',' << **it;
  38. }
Success #stdin #stdout 0s 3020KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
,2,5,6
https://ideone.com/dPztYr
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
secret

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!