Nixon Diamond

Inheritence Conflicts

• One of the problems with inheritence occurs when a class (or instance) inherits from multiple categories.
• This stuff was figured out when Richard Nixon was the US president, so the canonical example is called the Nixon Diamond.
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• Inheritence conflicts are one reason many programming languages do not allow multiple inheritence.
• Note that it's relatively easy to detect inheritence conflicts.
• If you detect one, how might the system resolve the conflict?