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  1. #include <iostream>
  2. #include <set>
  3.  
  4.  
  5. struct blah{
  6.        int  a,b,c;
  7.        bool operator < ( const blah& blo  ) const{
  8.            return ( a < blo.a || (a == blo.a && (b != blo.b || c != blo.c ) ) );
  9.        }
  10.  };
  11.  
  12.  std::set<blah> set;
  13.  
  14. int main() {
  15.  
  16.         set.insert(blah());
  17.         set.insert(blah());
  18.         set.insert(blah());
  19.         return 0;
  20. }
Success #stdin #stdout 0s 2980KB
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https://ideone.com/rJKFmC
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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