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book: discriminative modification to the nature of override and overload (#265)

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lingkerio whiher
2023-05-07 15:19:09 +08:00
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book/en-us/02-usability.md
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@@ -971,7 +971,7 @@ C++11 introduces the two keywords `override` and `final` to prevent this from ha
### override
When overriding a virtual function, introducing the `override` keyword will explicitly tell the compiler to overload, and the compiler will check if the base function has such a virtual function, otherwise it will not compile:
When overriding a virtual function, introducing the `override` keyword will explicitly tell the compiler to overload, and the compiler will check if the base function has such a virtual function with consistent function signature, otherwise it will not compile:
```cpp
struct Base {