18:05 <donpdonp> andrewrk: can you say more about "zig provides memcpy (and more)" re: webassembly? is there an implementation of malloc for webasm in the zig codebase somewhere?

18:06 <emekankurumeh[m]> for wasm wouldn't you just want a FixedBufferAllocator because wasm doesn't support heap allocation?

18:08 <donpdonp> emekankurumeh[m]: that makes sense, though im not familiar with all the mechanisms zig provides.

18:09 <donpdonp> im just trying to get a hello-world.zig to build. from earlier: "as soon as i add var bytes : [255]u8 = undefined; ... the wasm tries to import 'memcpy'"

18:09 <emekankurumeh[m]> documentation is an issue that's being worked on.

18:26 <donpdonp> var x = std.heap.FixedBufferAllocator.init(bytes[0..]); => in function __zig_return_error void (%StackTrace*): WebAssembly hasn't implemented __builtin_return_address

18:26 <donpdonp> being this early to webasm is very educational :)

20:22 <Marumoto> Is there a statically allocated list in the standard library?

20:24 <halosghost> list meaning a linked list?

20:24 <halosghost> if so, what do you mean by statically-allocated?

20:24 <halosghost> if not, what do you mean by `list`? :)

20:29 <Marumoto> Basically like struct List { int elements[32]; int num_elements; }

20:30 <Marumoto> where the capacity is specified at compile time

20:30 <Marumoto> array/vector

20:30 <halosghost> oh

20:30 <halosghost> why not just use an array?

20:31 <MajorLag> That's just an array in Zig. `const list: [32]i32 = undefined;`. length is had by `list.len`;

20:31 <Marumoto> they just have a capacity right?

20:31 <Marumoto> oh

20:31 <halosghost> what MajorLag said :)

20:31 <Marumoto> I've just looked at zig for 2 seconds

20:31 <MajorLag> unless you want a variable number of elements within a fixed buffer size

20:31 <Marumoto> yeah

20:32 <MajorLag> you could then use your list structure, or an ArrayList w/ a FixedBufferAllocator.

20:32 <halosghost> no context was given, but I'd suspect that, for most cases, an array is sufficient

20:32 <halosghost> 🤷

20:32 <halosghost> YMMV

20:33 <Marumoto> like this https://pastebin.com/raw/FuMgHuYh

20:36 <MajorLag> `var buffer: [32 * @sizeOf(i32)]u8 = undefined;` `var fba = std.heap.FixedBufferAllocator.init(buffer);` `var list = ArrayList(i32).init(fba);` `list.append(42);` `const count = list.len;`

20:37 <Marumoto> ooh, thats great

20:37 <Marumoto> that looks like what I want

20:38 <Marumoto> thanks