Re: Avoid unecessary MemSet call (src/backend/utils/cache/relcache.c)

On 2022-Aug-11, Ranier Vilela wrote:

> According to:
> https://interrupt.memfault.com/blog/c-struct-padding-initialization

Did you actually read it?

https://interrupt.memfault.com/blog/c-struct-padding-initialization#structure-zero-initialization

: This looks great! However, it’s not obvious (from looking at those snippets)
: what the value loaded into the padding region will be.
:
: The unfortunate answer is: it depends
:
: The C11 standard, chapter §6.2.6.1/6 says this:
:
: : When a value is stored in an object of structure or union type, including in a
: : member object, the bytes of the object representation that correspond to any
: : padding bytes take unspecified values.