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A class is derived from a virtual base class.
The MISRA C++:2008 guidelines discourage use of virtual base classes because they are associated with undefined behaviors and can be confusing for human readers.
This class is a strict superset of Virtual Base Class not In Diamond and of Implicit Inheritance from Stateful Virtual Base.
| Class Name | Virtual Base Class | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Significance | style | |||||||||
| Mnemonic | LANG.TYPE.BCV | |||||||||
| Categories |
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| Availability | Available for C and C++. |
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| Enabling | Checks for this warning class are disabled by default,
and require the unnormalized
C ASTs for the project. To enable them, add the following
WARNING_FILTER rule and RETAIN_UNNORMALIZED_C_AST specification to the project configuration file.
RETAIN_UNNORMALIZED_C_AST = Yes WARNING_FILTER += allow class="Virtual Base Class" |
Japanese (ja)
class Base {};
class DerivedPublicVirtual: public virtual Base {}; // 'Virtual Base Class' warning issued here
class DerivedVirtual: virtual Base {}; // 'Virtual Base Class' warning issued here
class DerivedPublic: public Base {}; // ok: base class is not virtual
The following configuration file parameters affect checks for this warning class.