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MISRA C:2012 Rule 20.8

The controlling expression of a #if or #elif preprocessing directive shall evaluate to 0 or 1

描述

规则定义

The controlling expression of a #if or #elif preprocessing directive shall evaluate to 0 or 1 1 .

理由

强类型要求条件包含预处理指令 #if 或 #elif 具有一个计算结果为布尔值的控制表达式。

故障排除

如果您预期会出现违规，但未看到该违规，请参阅诊断为何编码规范违规未按预期显示。

检查信息

组：预处理指令
类别：必需
AGC 类别：建议

另请参阅

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主题

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.