User Defined Conversions

Learn how to add conversion functions to our classes, so our custom objects can be converted to other types.

Ryan McCombe
Updated
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Questions & Answers

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Overloading Typecast Operators
How do you overload a typecast operator in C++?
Example of Overloading Typecast Operator
Can you provide an example of overloading a typecast operator for a custom class?
Explicit Keyword
How does the explicit keyword help prevent unintended conversions?
Deleting Typecast Operators
Why might we want to delete a specific typecast operator?
Bool Typecasts
What special considerations are there for bool typecasts in C++?
Preventing Bool to Custom Type Conversion
How can we prevent a boolean from being converted to a custom type?
Forward Declaration with Conversions
How does forward declaration of a class work in the context of conversions?
Implementing Custom Type Conversion
How do you implement a custom type conversion that converts an object to a built-in type?
Preventing Constructor Calls
How can we use delete to prevent specific constructor calls?
Avoiding Implicit Conversion Bugs
Can you give an example where an implicit conversion might lead to a bug, and how to prevent it?