Allocation fails for buffers larger than 2^29 bytes

[Snektron]

When allocating a buffer with more than 2^29 bytes, the integer cast on this line overflows:

zig/lib/std/mem/Allocator.zig

Line 286 in 8d8d568

const size_of_T = if (alignment == null) @intCast(u29, @divExact(byte_count, n)) else @sizeOf(T);

[tau-dev]

Seems to have been resolved, there are no @intCasts in std/mem/Allocator anymore and I can allocate 6GB without any issues.

[chrboesch]

Confirm that.