Set operators

C/C++ Reference

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cppreference.com > C++ Sets > Set operators

Set operators

Syntax:

  #include <set>
  set operator=(const set& c2);
  bool operator==(const set& c1, const set& c2);
  bool operator!=(const set& c1, const set& c2);
  bool operator<(const set& c1, const set& c2);
  bool operator>(const set& c1, const set& c2);
  bool operator<=(const set& c1, const set& c2);
  bool operator>=(const set& c1, const set& c2);

All of the C++ containers can be compared and assigned with the standard comparison operators: ==, !=, <=, >=, <, >, and =. Performing a comparison or assigning one set to another takes linear time.

Two sets are equal if:

Their size is the same, and
Each member in location i in one set is equal to the the member in location i in the other set.

Comparisons among sets are done lexicographically.