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Stabilize const_indexing feature

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Oliver Schneider 2018-01-29 20:46:42 +01:00 committed by Oliver Schneider
parent 600fcc7159
commit 45abb1ba84
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2 changed files with 2 additions and 22 deletions
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19
src/doc/unstable-book/src/language-features/const-indexing.md
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@ -1,19 +0,0 @@
# `const_indexing`
The tracking issue for this feature is: [#29947]
[#29947]: https://github.com/rust-lang/rust/issues/29947
------------------------
The `const_indexing` feature allows the constant evaluation of index operations
on constant arrays and repeat expressions.
## Examples
```rust
#![feature(const_indexing)]
const ARR: [usize; 5] = [1, 2, 3, 4, 5];
const ARR2: [usize; ARR[1]] = [42, 99];
```

5
src/libsyntax/feature_gate.rs
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@ -217,9 +217,6 @@ declare_features! (
// Allows the definition of `const fn` functions.
(active, const_fn, "1.2.0", Some(24111)),
// Allows indexing into constant arrays.
(active, const_indexing, "1.4.0", Some(29947)),
// Allows using #[prelude_import] on glob `use` items.
//
// rustc internal
@ -490,6 +487,8 @@ declare_features! (
(accepted, augmented_assignments, "1.8.0", Some(28235)),
// allow empty structs and enum variants with braces
(accepted, braced_empty_structs, "1.8.0", Some(29720)),
// Allows indexing into constant arrays.
(accepted, const_indexing, "1.24.0", Some(29947)),
(accepted, default_type_params, "1.0.0", None),
(accepted, globs, "1.0.0", None),
(accepted, if_let, "1.0.0", None),