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Концепции C++: EqualityComparable

Материал из cppreference.com
< cpp‎ | concept


The type must work with == operator and the result should have standard semantics.

[править] Требования

Expression Requirements Return type
a == b
  • Commutativity (a == b yields the same as b == a)
  • Transitivity (if a == b and b == c, then a == c)
bool or a type implicitly convertible to bool