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  1. #include <iostream>
  2. #include <algorithm>
  3. #include <vector>
  4. using namespace std;
  5.  
  6. struct T{
  7.     string name;
  8.     T(string n):name(n){};
  9. };
  10.  
  11.     bool operator < (const T& l, const T *r) {
  12.     	cout << "LEFT:" << l.name << " ... " << r->name << endl;
  13.         return l.name < r->name;
  14.     }
  15.     bool operator < (const T *l, const T &r) {
  16.     	cout << "RIGHT:" << l->name << " ... " << r.name << endl;
  17.         return l->name < r.name;
  18.     }
  19.  
  20. int main() {
  21.     vector<T*> t;
  22.     t.push_back(new T("one"));
  23.     t.push_back(new T("three"));
  24.     t.push_back(new T("two"));
  25.  
  26.     bool has_3 = binary_search( t.begin(), t.end(), T("two") ) ;
  27.     if( has_3 ){
  28.         cout <<"Its there" << endl;
  29.     }
  30. 	return 0;
  31. }
Success #stdin #stdout 0s 16064KB
comments (?)
stdin
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Standard input is empty
stdout
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RIGHT:three ... two
RIGHT:two ... two
LEFT:two ... two
Its there
https://ideone.com/2x2ToS
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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