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best idea is to use brace initialization

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vladon
2015-08-17 20:06:58 +03:00
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03-Style.md
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@@ -264,6 +264,18 @@ private:
// ... // // ... //
``` ```
inside the class body. This makes sure that no constructor ever "forgets" to initialize a member object. inside the class body. This makes sure that no constructor ever "forgets" to initialize a member object.
Use brace initialization, it does not allow narrowing at compile-time:
```cpp
// Best Idea
// ... //
private:
int m_value{ 0 };
// ... //
```
Prefer {} initialization over alternatives unless you have a strong reason not to.
Forgetting to initialize a member is a source of undefined behavior bugs which are often extremely hard to find. Forgetting to initialize a member is a source of undefined behavior bugs which are often extremely hard to find.