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(C++) typeid

typeid is a C++ keyword to determine a type at runtime.

Example

• typeid example 1: basics

Advice

• Use typeid to implement extended type information [1]
• Use typeid to find the type of an object [2]
• Prefer virtual functions to repeated switch-statements based on typeid or dynamic_cast [3]

References

1. Bjarne Stroustrup. The C++ Programming Language (4th edition). 2013. ISBN: 978-0-321-56384-2. Chapter 22.7. Advice. page 663: '[8] Use typeid to implement extended type information'
2. Bjarne Stroustrup. The C++ Programming Language (4th edition). 2013. ISBN: 978-0-321-56384-2. Chapter 22.7. Advice. page 663: '[9] Use typeid to find the type of an object (and not to find an interface to an object)'
3. Bjarne Stroustrup. The C++ Programming Language (4th edition). 2013. ISBN: 978-0-321-56384-2. Chapter 22.7. Advice. page 663: '[10] Prefer virtual functions to repeated switch-statements based on typeid or dynamic_cast'

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