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RTTI: typeid and dynamic_cast
Last Updated: May 22, 2026
Low Priority
11 min read
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What RTTI Is and Why It Exists
typeid and std::type_info
Static Type vs Dynamic Type with typeid
typeid on a Null Pointer
dynamic_cast for Safe Downcasting
dynamic_cast to References
Cross-Cast Between Sibling Bases
dynamic_cast<void*>
Cost and the Cleaner Alternative
When RTTI Is Actually the Right Tool
Disabling RTTI with -fno-rtti
Putting It All Together
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Virtual Destructors
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Function Templates
