Bug in WDT firmware in SDK 16.0.0 ?

RE: Bug in WDT firmware in SDK 16.0.0 ?

Einar Thorsrud — Wed, 03 Mar 2021 13:09:54 GMT

Hi RMV,

To be honest this has always been part of my understanding of the C programming language. And it seems to be covered by many introductory texts, such as here. I have not dived into the standard documents, though.

RE: Bug in WDT firmware in SDK 16.0.0 ?

RVM — Tue, 02 Mar 2021 15:44:36 GMT

Hi Einar,

Can you point to a specific portion of say the C11 standard where your claim is listed?

I have done a quick word search for 'initial' and 'initialized' but other than the fact that the standard says that static global values are 'initialized once at program start' I do not see where it says it must be the value '0' (at least for an integer class variable).

Cheers

RMV

RE: Bug in WDT firmware in SDK 16.0.0 ?

Einar Thorsrud — Tue, 02 Mar 2021 11:59:40 GMT

Hi RMV,

Static or global variables are never uninitialized in C. Unless explicitly initialized to another value, they are implicitly initialized to zero. (Personally I prefer to explicitly set to zero to avoid confusion, but it is not required.) Local variables on the other hand are not implicitly initialized, so if this was a local variable, then it would have been a bug.

Einar