Comment by jitl

malloc'd memory is zeroed in fil-c:

> *zgc_alloc*

> Allocate count bytes of zero-initialized memory. May allocate slightly more than count, based on the runtime's minalign (which is currently 16).

> This is a GC allocation, so freeing it is optional. Also, if you free it and then use it, your program is guaranteed to panic.

> libc's malloc just forwards to this. There is no difference between calling malloc and zgc_alloc.

from https://fil-c.org/stdfil