{"comments":[{"comment":{"id":8161313,"creator_id":2680,"post_id":8245354,"content":"This is a nice small feature. I'm curious about the commit description:\n\n---\n\n```rust\nfoo(const { 1 + 1 })\n```\n\nwhich is roughly desugared into\n\n```rust\nstruct Foo;\nimpl Foo {\n const FOO: i32 = 1 + 1;\n}\nfoo(Foo::FOO)\n```\n\n---\n\nI would have expected it to desugar to something like:\n\n```rust\nfoo({\n const TMP: i32 = 1 + 1;\n TMP\n})\n```\n\nBut I can't seem an explanation why the struct with `impl` is used. I wonder if it has something to do with propagating generics.","removed":false,"published":"2024-04-25T14:20:20.090840Z","deleted":false,"ap_id":"https://lemmy.ml/comment/10569004","local":false,"path":"0.8161313","distinguished":false,"language_id":0},"creator":{"id":2680,"name":"kevincox","avatar":"https://lemmy.ml/pictrs/image/e550bc4a-4cad-442b-a375-b82c4b28e476.png","banned":false,"published":"2021-01-21T18:47:46.353571Z","updated":"2022-08-04T15:54:28.070390Z","actor_id":"https://lemmy.ml/u/kevincox","bio":"https://kevincox.ca/","local":false,"deleted":false,"matrix_user_id":"@kevincox:kevincox.ca","bot_account":false,"instance_id":16},"post":{"id":8245354,"name":"Inline const expressions have been stabilised","url":"https://github.com/rust-lang/rust/pull/104087","creator_id":83063,"community_id":3477,"removed":false,"locked":false,"published":"2024-04-25T12:45:03.219248Z","deleted":false,"nsfw":false,"embed_title":"Stabilise inline_const by nbdd0121 · Pull Request #104087 · rust-lang/rust","embed_description":"Stabilisation Report\nSummary\nThis PR will stabilise inline_const feature in expression position. inline_const_pat is still unstable and will not be stabilised.\nThe feature will allow code like this...","thumbnail_url":"https://programming.dev/pictrs/image/3e7252b0-e63c-40d4-833d-bfbdae35ea2e.png","ap_id":"https://feddit.dk/post/5223867","local":false,"language_id":0,"featured_community":false,"featured_local":false},"community":{"id":3477,"name":"rust","title":"Rust","description":"Welcome to the Rust community! This is a place to discuss about the [Rust programming language](https://www.rust-lang.org/).\n\n### Wormhole\n[!performance@programming.dev](https://programming.dev/c/performance) \n\n:::spoiler Credits\n- The icon is a modified version of the official rust logo (changing the colors to a gradient and black background)\n:::","removed":false,"published":"2023-06-12T01:25:09.158759Z","updated":"2023-12-11T01:43:02.283925Z","deleted":false,"nsfw":false,"actor_id":"https://programming.dev/c/rust","local":false,"icon":"https://programming.dev/pictrs/image/1f7e5534-88d3-4d6f-bc57-7cda9553890f.webp","banner":"https://programming.dev/pictrs/image/785b76dd-e87f-4fc9-9df8-db835c373155.jpeg","hidden":false,"posting_restricted_to_mods":false,"instance_id":22,"visibility":"Public"},"counts":{"comment_id":8161313,"score":6,"upvotes":6,"downvotes":0,"published":"2024-04-25T14:20:20.090840Z","child_count":4},"creator_banned_from_community":false,"banned_from_community":false,"creator_is_moderator":false,"creator_is_admin":false,"subscribed":"NotSubscribed","saved":false,"creator_blocked":false},{"comment":{"id":8165268,"creator_id":16480,"post_id":8245354,"content":"Huh, this is awesome! From the link, this now works:\n\n let v: Vec = const { Vec::new() };\n\nI'm going to have to play with this to see how far it goes. ","removed":false,"published":"2024-04-25T17:43:36.110836Z","deleted":false,"ap_id":"https://sh.itjust.works/comment/11149299","local":false,"path":"0.8165268","distinguished":false,"language_id":0},"creator":{"id":16480,"name":"sugar_in_your_tea","banned":false,"published":"2023-06-11T04:24:11.675216Z","actor_id":"https://sh.itjust.works/u/sugar_in_your_tea","bio":"Mama told me not to come.\n\nShe said, that ain't the way to have fun.","local":false,"deleted":false,"bot_account":false,"instance_id":32},"post":{"id":8245354,"name":"Inline const expressions have been stabilised","url":"https://github.com/rust-lang/rust/pull/104087","creator_id":83063,"community_id":3477,"removed":false,"locked":false,"published":"2024-04-25T12:45:03.219248Z","deleted":false,"nsfw":false,"embed_title":"Stabilise inline_const by nbdd0121 · Pull Request #104087 · rust-lang/rust","embed_description":"Stabilisation Report\nSummary\nThis PR will stabilise inline_const feature in expression position. inline_const_pat is still unstable and will not be stabilised.\nThe feature will allow code like this...","thumbnail_url":"https://programming.dev/pictrs/image/3e7252b0-e63c-40d4-833d-bfbdae35ea2e.png","ap_id":"https://feddit.dk/post/5223867","local":false,"language_id":0,"featured_community":false,"featured_local":false},"community":{"id":3477,"name":"rust","title":"Rust","description":"Welcome to the Rust community! This is a place to discuss about the [Rust programming language](https://www.rust-lang.org/).\n\n### Wormhole\n[!performance@programming.dev](https://programming.dev/c/performance) \n\n:::spoiler Credits\n- The icon is a modified version of the official rust logo (changing the colors to a gradient and black background)\n:::","removed":false,"published":"2023-06-12T01:25:09.158759Z","updated":"2023-12-11T01:43:02.283925Z","deleted":false,"nsfw":false,"actor_id":"https://programming.dev/c/rust","local":false,"icon":"https://programming.dev/pictrs/image/1f7e5534-88d3-4d6f-bc57-7cda9553890f.webp","banner":"https://programming.dev/pictrs/image/785b76dd-e87f-4fc9-9df8-db835c373155.jpeg","hidden":false,"posting_restricted_to_mods":false,"instance_id":22,"visibility":"Public"},"counts":{"comment_id":8165268,"score":5,"upvotes":6,"downvotes":1,"published":"2024-04-25T17:43:36.110836Z","child_count":3},"creator_banned_from_community":false,"banned_from_community":false,"creator_is_moderator":false,"creator_is_admin":false,"subscribed":"NotSubscribed","saved":false,"creator_blocked":false},{"comment":{"id":8210722,"creator_id":1936088,"post_id":8245354,"content":"I'm not getting it. What's the point? It seems very much like a cpp-ism where you can put `const` in [ so many places](https://en.cppreference.com/w/cpp/language/cv).\n\n```cpp\nconst int n2 = 0; // const object\nint const n3 = 0; // const object (same as n2)\n// https://learn.microsoft.com/en-us/cpp/cpp/const-and-volatile-pointers?view=msvc-170\nconst char *cpch; // const variable cannot point to another pointer\nchar * const pchc; // value of pointer is constant\n\nint f() const; // members cannot be modified in this, only read\nstd::string const f(); // returns a constant\n```\n\nThen there are [constant expressions](https://stackoverflow.com/questions/14116003/whats-the-difference-between-constexpr-and-const).\n\nCan anybody look at that and tell me it's readable with a straight face? I hope they don't start adding all this stuff to rust.\n\n[Anti Commercial-AI license](https://creativecommons.org/licenses/by-nc-sa/4.0/)","removed":false,"published":"2024-04-27T12:27:56.312770Z","updated":"2024-04-27T12:28:51.554404Z","deleted":false,"ap_id":"https://programming.dev/comment/9552912","local":false,"path":"0.8210722","distinguished":false,"language_id":37},"creator":{"id":1936088,"name":"onlinepersona","banned":false,"published":"2023-09-01T17:58:14.984658Z","actor_id":"https://programming.dev/u/onlinepersona","local":false,"deleted":false,"bot_account":false,"instance_id":22},"post":{"id":8245354,"name":"Inline const expressions have been stabilised","url":"https://github.com/rust-lang/rust/pull/104087","creator_id":83063,"community_id":3477,"removed":false,"locked":false,"published":"2024-04-25T12:45:03.219248Z","deleted":false,"nsfw":false,"embed_title":"Stabilise inline_const by nbdd0121 · Pull Request #104087 · rust-lang/rust","embed_description":"Stabilisation Report\nSummary\nThis PR will stabilise inline_const feature in expression position. inline_const_pat is still unstable and will not be stabilised.\nThe feature will allow code like this...","thumbnail_url":"https://programming.dev/pictrs/image/3e7252b0-e63c-40d4-833d-bfbdae35ea2e.png","ap_id":"https://feddit.dk/post/5223867","local":false,"language_id":0,"featured_community":false,"featured_local":false},"community":{"id":3477,"name":"rust","title":"Rust","description":"Welcome to the Rust community! This is a place to discuss about the [Rust programming language](https://www.rust-lang.org/).\n\n### Wormhole\n[!performance@programming.dev](https://programming.dev/c/performance) \n\n:::spoiler Credits\n- The icon is a modified version of the official rust logo (changing the colors to a gradient and black background)\n:::","removed":false,"published":"2023-06-12T01:25:09.158759Z","updated":"2023-12-11T01:43:02.283925Z","deleted":false,"nsfw":false,"actor_id":"https://programming.dev/c/rust","local":false,"icon":"https://programming.dev/pictrs/image/1f7e5534-88d3-4d6f-bc57-7cda9553890f.webp","banner":"https://programming.dev/pictrs/image/785b76dd-e87f-4fc9-9df8-db835c373155.jpeg","hidden":false,"posting_restricted_to_mods":false,"instance_id":22,"visibility":"Public"},"counts":{"comment_id":8210722,"score":0,"upvotes":2,"downvotes":2,"published":"2024-04-27T12:27:56.312770Z","child_count":2},"creator_banned_from_community":false,"banned_from_community":false,"creator_is_moderator":false,"creator_is_admin":false,"subscribed":"NotSubscribed","saved":false,"creator_blocked":false},{"comment":{"id":8162410,"creator_id":1260632,"post_id":8245354,"content":"It's because it has to work in pattern contexts as well, which are not expressions.","removed":false,"published":"2024-04-25T15:20:05.110515Z","deleted":false,"ap_id":"https://sopuli.xyz/comment/9050445","local":false,"path":"0.8161313.8162410","distinguished":false,"language_id":0},"creator":{"id":1260632,"name":"0v0","banned":false,"published":"2023-08-09T16:02:23.141125Z","actor_id":"https://sopuli.xyz/u/0v0","local":false,"deleted":false,"bot_account":false,"instance_id":13},"post":{"id":8245354,"name":"Inline const expressions have been stabilised","url":"https://github.com/rust-lang/rust/pull/104087","creator_id":83063,"community_id":3477,"removed":false,"locked":false,"published":"2024-04-25T12:45:03.219248Z","deleted":false,"nsfw":false,"embed_title":"Stabilise inline_const by nbdd0121 · Pull Request #104087 · rust-lang/rust","embed_description":"Stabilisation Report\nSummary\nThis PR will stabilise inline_const feature in expression position. inline_const_pat is still unstable and will not be stabilised.\nThe feature will allow code like this...","thumbnail_url":"https://programming.dev/pictrs/image/3e7252b0-e63c-40d4-833d-bfbdae35ea2e.png","ap_id":"https://feddit.dk/post/5223867","local":false,"language_id":0,"featured_community":false,"featured_local":false},"community":{"id":3477,"name":"rust","title":"Rust","description":"Welcome to the Rust community! This is a place to discuss about the [Rust programming language](https://www.rust-lang.org/).\n\n### Wormhole\n[!performance@programming.dev](https://programming.dev/c/performance) \n\n:::spoiler Credits\n- The icon is a modified version of the official rust logo (changing the colors to a gradient and black background)\n:::","removed":false,"published":"2023-06-12T01:25:09.158759Z","updated":"2023-12-11T01:43:02.283925Z","deleted":false,"nsfw":false,"actor_id":"https://programming.dev/c/rust","local":false,"icon":"https://programming.dev/pictrs/image/1f7e5534-88d3-4d6f-bc57-7cda9553890f.webp","banner":"https://programming.dev/pictrs/image/785b76dd-e87f-4fc9-9df8-db835c373155.jpeg","hidden":false,"posting_restricted_to_mods":false,"instance_id":22,"visibility":"Public"},"counts":{"comment_id":8162410,"score":10,"upvotes":10,"downvotes":0,"published":"2024-04-25T15:20:05.110515Z","child_count":2},"creator_banned_from_community":false,"banned_from_community":false,"creator_is_moderator":false,"creator_is_admin":false,"subscribed":"NotSubscribed","saved":false,"creator_blocked":false},{"comment":{"id":8166031,"creator_id":46528,"post_id":8245354,"content":"> They tested the same strings on that implementation\n\nThe code they were looking at was used for writing the table, but they were testing the one that read it (which is instead correct).\n\n> though judging by the recent comments someone’s found something.\n\nYeah that's me :)The translation using an associated const also works when the `const` block uses generic parameters. For example:\n\n fn require_zst() {\n const { assert!(std::mem::size_of::() == 0) }\n }\n\nThis can be written as:\n\n fn require_zst() {\n struct Foo(PhantomData);\n impl Foo {\n const FOO: () = assert!(std::mem::size_of::() == 0);\n }\n Foo::::FOO\n }\n\nHowever it cannot be written as:\n\n fn require_zst() {\n const FOO: () = assert!(std::mem::size_of::() == 0);\n FOO\n }\n\nBecause `const FOO: ()` is an item, thus it is only lexically scoped (i.e. visible) inside `require_zst`, but does not inherit its generics (thus it cannot use `T`).","removed":false,"published":"2024-04-25T18:23:06.302897Z","deleted":false,"ap_id":"https://lemmy.world/comment/9647966","local":false,"path":"0.8161313.8166031","distinguished":false,"language_id":37},"creator":{"id":46528,"name":"Giooschi","banned":false,"published":"2023-07-01T17:10:29.418086Z","actor_id":"https://lemmy.world/u/Giooschi","local":false,"deleted":false,"bot_account":false,"instance_id":24},"post":{"id":8245354,"name":"Inline const expressions have been stabilised","url":"https://github.com/rust-lang/rust/pull/104087","creator_id":83063,"community_id":3477,"removed":false,"locked":false,"published":"2024-04-25T12:45:03.219248Z","deleted":false,"nsfw":false,"embed_title":"Stabilise inline_const by nbdd0121 · Pull Request #104087 · rust-lang/rust","embed_description":"Stabilisation Report\nSummary\nThis PR will stabilise inline_const feature in expression position. inline_const_pat is still unstable and will not be stabilised.\nThe feature will allow code like this...","thumbnail_url":"https://programming.dev/pictrs/image/3e7252b0-e63c-40d4-833d-bfbdae35ea2e.png","ap_id":"https://feddit.dk/post/5223867","local":false,"language_id":0,"featured_community":false,"featured_local":false},"community":{"id":3477,"name":"rust","title":"Rust","description":"Welcome to the Rust community! This is a place to discuss about the [Rust programming language](https://www.rust-lang.org/).\n\n### Wormhole\n[!performance@programming.dev](https://programming.dev/c/performance) \n\n:::spoiler Credits\n- The icon is a modified version of the official rust logo (changing the colors to a gradient and black background)\n:::","removed":false,"published":"2023-06-12T01:25:09.158759Z","updated":"2023-12-11T01:43:02.283925Z","deleted":false,"nsfw":false,"actor_id":"https://programming.dev/c/rust","local":false,"icon":"https://programming.dev/pictrs/image/1f7e5534-88d3-4d6f-bc57-7cda9553890f.webp","banner":"https://programming.dev/pictrs/image/785b76dd-e87f-4fc9-9df8-db835c373155.jpeg","hidden":false,"posting_restricted_to_mods":false,"instance_id":22,"visibility":"Public"},"counts":{"comment_id":8166031,"score":7,"upvotes":7,"downvotes":0,"published":"2024-04-25T18:23:06.302897Z","child_count":0},"creator_banned_from_community":false,"banned_from_community":false,"creator_is_moderator":false,"creator_is_admin":false,"subscribed":"NotSubscribed","saved":false,"creator_blocked":false},{"comment":{"id":8163269,"creator_id":83063,"post_id":8245354,"content":"Wait, in pattern context? How? Can you give an example?","removed":false,"published":"2024-04-25T16:04:40.536175Z","deleted":false,"ap_id":"https://feddit.dk/comment/7918191","local":false,"path":"0.8161313.8162410.8163269","distinguished":false,"language_id":0},"creator":{"id":83063,"name":"SorteKanin","avatar":"https://feddit.dk/pictrs/image/7c6b6582-40a1-412b-99be-35694d7af85a.png","banned":false,"published":"2023-04-27T21:11:16.444257Z","actor_id":"https://feddit.dk/u/SorteKanin","local":false,"deleted":false,"bot_account":false,"instance_id":85},"post":{"id":8245354,"name":"Inline const expressions have been stabilised","url":"https://github.com/rust-lang/rust/pull/104087","creator_id":83063,"community_id":3477,"removed":false,"locked":false,"published":"2024-04-25T12:45:03.219248Z","deleted":false,"nsfw":false,"embed_title":"Stabilise inline_const by nbdd0121 · Pull Request #104087 · rust-lang/rust","embed_description":"Stabilisation Report\nSummary\nThis PR will stabilise inline_const feature in expression position. inline_const_pat is still unstable and will not be stabilised.\nThe feature will allow code like this...","thumbnail_url":"https://programming.dev/pictrs/image/3e7252b0-e63c-40d4-833d-bfbdae35ea2e.png","ap_id":"https://feddit.dk/post/5223867","local":false,"language_id":0,"featured_community":false,"featured_local":false},"community":{"id":3477,"name":"rust","title":"Rust","description":"Welcome to the Rust community! This is a place to discuss about the [Rust programming language](https://www.rust-lang.org/).\n\n### Wormhole\n[!performance@programming.dev](https://programming.dev/c/performance) \n\n:::spoiler Credits\n- The icon is a modified version of the official rust logo (changing the colors to a gradient and black background)\n:::","removed":false,"published":"2023-06-12T01:25:09.158759Z","updated":"2023-12-11T01:43:02.283925Z","deleted":false,"nsfw":false,"actor_id":"https://programming.dev/c/rust","local":false,"icon":"https://programming.dev/pictrs/image/1f7e5534-88d3-4d6f-bc57-7cda9553890f.webp","banner":"https://programming.dev/pictrs/image/785b76dd-e87f-4fc9-9df8-db835c373155.jpeg","hidden":false,"posting_restricted_to_mods":false,"instance_id":22,"visibility":"Public"},"counts":{"comment_id":8163269,"score":2,"upvotes":2,"downvotes":0,"published":"2024-04-25T16:04:40.536175Z","child_count":1},"creator_banned_from_community":false,"banned_from_community":false,"creator_is_moderator":false,"creator_is_admin":false,"subscribed":"NotSubscribed","saved":false,"creator_blocked":false},{"comment":{"id":8276256,"creator_id":2436345,"post_id":8245354,"content":"Wouldn't this just prevent you from allocating more memory (than zero)? ","removed":false,"published":"2024-04-29T23:12:49.346826Z","deleted":false,"ap_id":"https://programming.dev/comment/9614155","local":false,"path":"0.8165268.8276256","distinguished":false,"language_id":0},"creator":{"id":2436345,"name":"jasory","banned":false,"published":"2023-09-07T23:50:07.498002Z","actor_id":"https://programming.dev/u/jasory","local":false,"deleted":false,"bot_account":false,"instance_id":22},"post":{"id":8245354,"name":"Inline const expressions have been stabilised","url":"https://github.com/rust-lang/rust/pull/104087","creator_id":83063,"community_id":3477,"removed":false,"locked":false,"published":"2024-04-25T12:45:03.219248Z","deleted":false,"nsfw":false,"embed_title":"Stabilise inline_const by nbdd0121 · Pull Request #104087 · rust-lang/rust","embed_description":"Stabilisation Report\nSummary\nThis PR will stabilise inline_const feature in expression position. inline_const_pat is still unstable and will not be stabilised.\nThe feature will allow code like this...","thumbnail_url":"https://programming.dev/pictrs/image/3e7252b0-e63c-40d4-833d-bfbdae35ea2e.png","ap_id":"https://feddit.dk/post/5223867","local":false,"language_id":0,"featured_community":false,"featured_local":false},"community":{"id":3477,"name":"rust","title":"Rust","description":"Welcome to the Rust community! This is a place to discuss about the [Rust programming language](https://www.rust-lang.org/).\n\n### Wormhole\n[!performance@programming.dev](https://programming.dev/c/performance) \n\n:::spoiler Credits\n- The icon is a modified version of the official rust logo (changing the colors to a gradient and black background)\n:::","removed":false,"published":"2023-06-12T01:25:09.158759Z","updated":"2023-12-11T01:43:02.283925Z","deleted":false,"nsfw":false,"actor_id":"https://programming.dev/c/rust","local":false,"icon":"https://programming.dev/pictrs/image/1f7e5534-88d3-4d6f-bc57-7cda9553890f.webp","banner":"https://programming.dev/pictrs/image/785b76dd-e87f-4fc9-9df8-db835c373155.jpeg","hidden":false,"posting_restricted_to_mods":false,"instance_id":22,"visibility":"Public"},"counts":{"comment_id":8276256,"score":2,"upvotes":2,"downvotes":0,"published":"2024-04-29T23:12:49.346826Z","child_count":1},"creator_banned_from_community":false,"banned_from_community":false,"creator_is_moderator":false,"creator_is_admin":false,"subscribed":"NotSubscribed","saved":false,"creator_blocked":false},{"comment":{"id":8234634,"creator_id":28468,"post_id":8245354,"content":"What I'm curious about - this function was already const, so for stuff like this, I'd think there's basically a 100% chance the compiler would optimize this too, just implicitly.\n\nAFAIK this new feature is just for times when it isn't an optimization, but more your own domain invariants. E.g. assertions.\n\nBut I could be wrong. I wonder if this can be used for actual optimizations in some places that the compiler couldn't figure out by itself.","removed":false,"published":"2024-04-28T10:46:14.174936Z","updated":"2024-04-28T19:15:01.510705Z","deleted":false,"ap_id":"https://lemmy.world/comment/9709554","local":false,"path":"0.8165268.8234634","distinguished":false,"language_id":0},"creator":{"id":28468,"name":"asdfasdfasdf","banned":false,"published":"2023-06-25T16:06:32.904096Z","actor_id":"https://lemmy.world/u/asdfasdfasdf","local":false,"deleted":false,"bot_account":false,"instance_id":24},"post":{"id":8245354,"name":"Inline const expressions have been stabilised","url":"https://github.com/rust-lang/rust/pull/104087","creator_id":83063,"community_id":3477,"removed":false,"locked":false,"published":"2024-04-25T12:45:03.219248Z","deleted":false,"nsfw":false,"embed_title":"Stabilise inline_const by nbdd0121 · Pull Request #104087 · rust-lang/rust","embed_description":"Stabilisation Report\nSummary\nThis PR will stabilise inline_const feature in expression position. inline_const_pat is still unstable and will not be stabilised.\nThe feature will allow code like this...","thumbnail_url":"https://programming.dev/pictrs/image/3e7252b0-e63c-40d4-833d-bfbdae35ea2e.png","ap_id":"https://feddit.dk/post/5223867","local":false,"language_id":0,"featured_community":false,"featured_local":false},"community":{"id":3477,"name":"rust","title":"Rust","description":"Welcome to the Rust community! This is a place to discuss about the [Rust programming language](https://www.rust-lang.org/).\n\n### Wormhole\n[!performance@programming.dev](https://programming.dev/c/performance) \n\n:::spoiler Credits\n- The icon is a modified version of the official rust logo (changing the colors to a gradient and black background)\n:::","removed":false,"published":"2023-06-12T01:25:09.158759Z","updated":"2023-12-11T01:43:02.283925Z","deleted":false,"nsfw":false,"actor_id":"https://programming.dev/c/rust","local":false,"icon":"https://programming.dev/pictrs/image/1f7e5534-88d3-4d6f-bc57-7cda9553890f.webp","banner":"https://programming.dev/pictrs/image/785b76dd-e87f-4fc9-9df8-db835c373155.jpeg","hidden":false,"posting_restricted_to_mods":false,"instance_id":22,"visibility":"Public"},"counts":{"comment_id":8234634,"score":2,"upvotes":2,"downvotes":0,"published":"2024-04-28T10:46:14.174936Z","child_count":0},"creator_banned_from_community":false,"banned_from_community":false,"creator_is_moderator":false,"creator_is_admin":false,"subscribed":"NotSubscribed","saved":false,"creator_blocked":false},{"comment":{"id":8277212,"creator_id":16480,"post_id":8245354,"content":"Ah, apparently for now you're not allowed to allocate. But `vec::new_in(allocator)` looks interesting. This works in nightly today: \n\n```\n#![feature(allocator_api)]\n\nuse std::alloc::Global;\n\nfn main() {\n const MY_VEC: Vec = const {\n Vec::new_in(Global)\n };\n println!(\"{:?}\", MY_VEC);\n}\n```\n\nMaybe at some point I can append to it at compile time too. I'd love to be able to put a `const {}` and have allocations that resolve down to a `'static`, and this seems to be a step toward that.\n\nI guess I'm just excited that `Vec::new()` is the example they picked, since the next obvious question is, \"can I push?\"","removed":false,"published":"2024-04-30T00:05:28.946905Z","updated":"2024-04-30T00:06:39.424486Z","deleted":false,"ap_id":"https://sh.itjust.works/comment/11252856","local":false,"path":"0.8165268.8276256.8277212","distinguished":false,"language_id":0},"creator":{"id":16480,"name":"sugar_in_your_tea","banned":false,"published":"2023-06-11T04:24:11.675216Z","actor_id":"https://sh.itjust.works/u/sugar_in_your_tea","bio":"Mama told me not to come.\n\nShe said, that ain't the way to have fun.","local":false,"deleted":false,"bot_account":false,"instance_id":32},"post":{"id":8245354,"name":"Inline const expressions have been stabilised","url":"https://github.com/rust-lang/rust/pull/104087","creator_id":83063,"community_id":3477,"removed":false,"locked":false,"published":"2024-04-25T12:45:03.219248Z","deleted":false,"nsfw":false,"embed_title":"Stabilise inline_const by nbdd0121 · Pull Request #104087 · rust-lang/rust","embed_description":"Stabilisation Report\nSummary\nThis PR will stabilise inline_const feature in expression position. inline_const_pat is still unstable and will not be stabilised.\nThe feature will allow code like this...","thumbnail_url":"https://programming.dev/pictrs/image/3e7252b0-e63c-40d4-833d-bfbdae35ea2e.png","ap_id":"https://feddit.dk/post/5223867","local":false,"language_id":0,"featured_community":false,"featured_local":false},"community":{"id":3477,"name":"rust","title":"Rust","description":"Welcome to the Rust community! This is a place to discuss about the [Rust programming language](https://www.rust-lang.org/).\n\n### Wormhole\n[!performance@programming.dev](https://programming.dev/c/performance) \n\n:::spoiler Credits\n- The icon is a modified version of the official rust logo (changing the colors to a gradient and black background)\n:::","removed":false,"published":"2023-06-12T01:25:09.158759Z","updated":"2023-12-11T01:43:02.283925Z","deleted":false,"nsfw":false,"actor_id":"https://programming.dev/c/rust","local":false,"icon":"https://programming.dev/pictrs/image/1f7e5534-88d3-4d6f-bc57-7cda9553890f.webp","banner":"https://programming.dev/pictrs/image/785b76dd-e87f-4fc9-9df8-db835c373155.jpeg","hidden":false,"posting_restricted_to_mods":false,"instance_id":22,"visibility":"Public"},"counts":{"comment_id":8277212,"score":2,"upvotes":2,"downvotes":0,"published":"2024-04-30T00:05:28.946905Z","child_count":0},"creator_banned_from_community":false,"banned_from_community":false,"creator_is_moderator":false,"creator_is_admin":false,"subscribed":"NotSubscribed","saved":false,"creator_blocked":false},{"comment":{"id":8212175,"creator_id":966162,"post_id":8245354,"content":"It can be used for producing const values in arbitrary context. Can basically be swapped for c++'s constexpr.\n\nC++'s const does not exist in rust (values are const by default).","removed":false,"published":"2024-04-27T13:59:26.849060Z","deleted":false,"ap_id":"https://jlai.lu/comment/6832411","local":false,"path":"0.8210722.8212175","distinguished":false,"language_id":0},"creator":{"id":966162,"name":"Miaou","banned":false,"published":"2023-08-03T17:04:27.817864Z","actor_id":"https://jlai.lu/u/Miaou","local":false,"deleted":false,"bot_account":false,"instance_id":600},"post":{"id":8245354,"name":"Inline const expressions have been stabilised","url":"https://github.com/rust-lang/rust/pull/104087","creator_id":83063,"community_id":3477,"removed":false,"locked":false,"published":"2024-04-25T12:45:03.219248Z","deleted":false,"nsfw":false,"embed_title":"Stabilise inline_const by nbdd0121 · Pull Request #104087 · rust-lang/rust","embed_description":"Stabilisation Report\nSummary\nThis PR will stabilise inline_const feature in expression position. inline_const_pat is still unstable and will not be stabilised.\nThe feature will allow code like this...","thumbnail_url":"https://programming.dev/pictrs/image/3e7252b0-e63c-40d4-833d-bfbdae35ea2e.png","ap_id":"https://feddit.dk/post/5223867","local":false,"language_id":0,"featured_community":false,"featured_local":false},"community":{"id":3477,"name":"rust","title":"Rust","description":"Welcome to the Rust community! This is a place to discuss about the [Rust programming language](https://www.rust-lang.org/).\n\n### Wormhole\n[!performance@programming.dev](https://programming.dev/c/performance) \n\n:::spoiler Credits\n- The icon is a modified version of the official rust logo (changing the colors to a gradient and black background)\n:::","removed":false,"published":"2023-06-12T01:25:09.158759Z","updated":"2023-12-11T01:43:02.283925Z","deleted":false,"nsfw":false,"actor_id":"https://programming.dev/c/rust","local":false,"icon":"https://programming.dev/pictrs/image/1f7e5534-88d3-4d6f-bc57-7cda9553890f.webp","banner":"https://programming.dev/pictrs/image/785b76dd-e87f-4fc9-9df8-db835c373155.jpeg","hidden":false,"posting_restricted_to_mods":false,"instance_id":22,"visibility":"Public"},"counts":{"comment_id":8212175,"score":4,"upvotes":4,"downvotes":0,"published":"2024-04-27T13:59:26.849060Z","child_count":0},"creator_banned_from_community":false,"banned_from_community":false,"creator_is_moderator":false,"creator_is_admin":false,"subscribed":"NotSubscribed","saved":false,"creator_blocked":false},{"comment":{"id":8549894,"creator_id":1235681,"post_id":8245354,"content":"Nope. This little neat feature mainly is just necessary part of bigger one - const-generics with const bounds.","removed":false,"published":"2024-05-11T11:07:26.607078Z","deleted":false,"ap_id":"https://programming.dev/comment/9866189","local":false,"path":"0.8210722.8549894","distinguished":false,"language_id":0},"creator":{"id":1235681,"name":"fzz","display_name":"Alex","avatar":"https://programming.dev/pictrs/image/3f64a024-47e9-490f-b2b0-a41fd34c01ea.png","banned":false,"published":"2023-08-11T11:55:15.543608Z","actor_id":"https://programming.dev/u/fzz","bio":"Spending short lifetime for development and boring things.\n\n::: spoiler –\n$argon2id$v=19$m=512,t=256,p=1$J7IZNfNG3RC2FiSRzZfQzw$0seu3KTpAnSufFxXDbHccXnX81enF+A++beI9VvHVVA\n:::\n","local":false,"deleted":false,"matrix_user_id":"@fzzr:matrix.org","bot_account":false,"instance_id":22},"post":{"id":8245354,"name":"Inline const expressions have been stabilised","url":"https://github.com/rust-lang/rust/pull/104087","creator_id":83063,"community_id":3477,"removed":false,"locked":false,"published":"2024-04-25T12:45:03.219248Z","deleted":false,"nsfw":false,"embed_title":"Stabilise inline_const by nbdd0121 · Pull Request #104087 · rust-lang/rust","embed_description":"Stabilisation Report\nSummary\nThis PR will stabilise inline_const feature in expression position. inline_const_pat is still unstable and will not be stabilised.\nThe feature will allow code like this...","thumbnail_url":"https://programming.dev/pictrs/image/3e7252b0-e63c-40d4-833d-bfbdae35ea2e.png","ap_id":"https://feddit.dk/post/5223867","local":false,"language_id":0,"featured_community":false,"featured_local":false},"community":{"id":3477,"name":"rust","title":"Rust","description":"Welcome to the Rust community! 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