Complete Modern C++ - Project - Part IX (RTTI Basics)

Complete Modern C++ - Project - Part IX (RTTI Basics)

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Hard

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The video tutorial covers the implementation of a minimum balance feature in a checking account class, emphasizing the importance of setting and querying this value externally. It discusses the challenges of downcasting pointers and the dependencies it creates, highlighting design concerns. The tutorial introduces the concept of Run-Time Type Identification (RTI) in C++, explaining how to use the type ID operator to determine the type of objects at runtime, especially in polymorphic scenarios. The video concludes with practical examples of using type ID for decision-making based on object types.

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7 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the purpose of the member variable 'Minimum balance' in the checking class?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the process of downcasting an account pointer to a checking pointer.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What are the potential risks of blindly downcasting an account pointer?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What should be checked before downcasting an account pointer to ensure safety?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of the type ID operator in C++?

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe how to use the name function from the type info class.

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

How does the type ID operator behave differently for polymorphic and non-polymorphic types?

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