MISRA Discussion Forums › MISRA C › MISRA C:2012 and MISRA C:2023 guidelines › 8.13 Side effects
13.1 when initializing with address of volatile variable

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13.1 when initializing with address of volatile variable
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#2
18-10-2018, 01:00 PM
All your examples are compliant with rule 13.1. Taking the address of a volatile variable is not a "persistent side effect".

In the &REG1 and &REG2.bar examples, neither the & or * operator are evaluated - see C99 6.5.3.2(3).
For example: &(*(volatile uint16_t *)0x100) is equivalent to (volatile uint16_t *)0x100
Posted by and on behalf of the MISRA C Working Group
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