MISRA C++:2008 Rule 3-2-2
The One Definition Rule shall not be violated
描述
默认 Polyspace® as You Code™ 分析中反激活了此检查项。请参阅 Checkers Deactivated in Polyspace as You Code Analysis (Polyspace as You Code)。
规则定义
The One Definition Rule shall not be violated. 1
理由
违反“一个定义规则”(One Definition Rule)会导致未定义行为。
Polyspace 实现
检查项会标记以下情况:同一个函数或对象有多个定义且这些定义中的某些标记不同。检查项不会对未使用的代码进行标记,例如:
未实例化的模板
未调用的
static或extern函数未调用和未定义的局部函数
未使用的类型和变量
报告中的补充消息
The One Definition Rule shall not be violated.
Declaration of class className violates the One Definition Rule:
it conflicts with other declaration (fileNamelineNumber).
故障排除
如果您预期会出现违规,而 Polyspace 未报告该违规,请参阅诊断为何编码规范违规未按预期显示。
示例
检查信息
| 组:基本概念 |
| 类别:必需 |
版本历史记录
在 R2013b 中推出
1 All MISRA coding rules and directives are © Copyright The MISRA Consortium Limited 2021.
The MISRA coding standards referenced in the Polyspace Bug Finder™ documentation are from the following MISRA standards:
MISRA C:2004
MISRA C:2012
MISRA C:2023
MISRA C++:2008
MISRA C++:2023
MISRA and MISRA C are registered trademarks of The MISRA Consortium Limited 2021.