ringabout 94008531c1 fixes #25457; make rawAlloc support alignment (#25476) ...

fixes https://github.com/nim-lang/Nim/issues/25457

Small chunks allocate memory in fixed-size cells. Each cell is
positioned at exact multiples of the cell size from the chunk's data
start, which makes it much harder to support alignment

```nim
sysAssert c.size == size, "rawAlloc 6"
if c.freeList == nil:
  sysAssert(c.acc.int + smallChunkOverhead() + size <= SmallChunkSize,
            "rawAlloc 7")
  result = cast[pointer](cast[int](addr(c.data)) +% c.acc.int)
  inc(c.acc, size)
```

See also https://github.com/nim-lang/Nim/pull/12926 

While using big trunk, each allocation gets its own chunk

2026-02-11 11:33:31 +01:00

..

globalalignas.nim

fixes #13122 (#13126)

2020-01-13 14:11:51 +01:00

talign.nim

fixes #25457; make rawAlloc support alignment (#25476)

2026-02-11 11:33:31 +01:00

tillegalalign.nim

fixes #13122 (#13126)

2020-01-13 14:11:51 +01:00