Arena/Segment allocator and zero initialized MemorySegment

[Remi Forax]

Hello,
for one of my API, I want to take a SegmentAllocator as parameter, and this allocator whould provides zero initialized MemorySegment, but it seems there is no way to know if a SegmentAllocator or an Arena will intialize the MemorySegment with zeroes when allocate() is callled.

I believe what is missing is a default method isZeroInitialized() in SegmentAllocator that returns false by default and true for the 4 global(), ofAuto(), ofConfined() and ofShared() implementations.

regards,
Rémi