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c++operator-overloading
A Friedrich
A Friedrich

Reputation: 603

C++ operator overloading: call default function

Is it somehow possible to call a default function each time an overloaded operator is called? E.g., you have a class which contains a value either in meters or yards and you want to check both of them to have equal units before applying the overloaded operator. Right now I'm using a checkCompatibility()-function in every overloaded operator definition, but it would be convenient if that would happen automatically for any overloaded binary operation.

Upvotes: 1

Views: 248

Answers (1)

Björn Pollex
Björn Pollex

Reputation: 76778

There is no such functionality, but Boost.Units is designed to solve problems with unit conversion (at compile time). Your function would take a quantity<length> as parameter, and the library makes sure anything that is passed in is compatible and handles the conversion of units.

Upvotes: 1

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