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Mark concat_idents! unstable

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This is mostly just a documentation fix as I don't think stability
attributes have any effect on macros.
This commit is contained in:
Oliver Middleton 2016-06-21 23:30:15 +01:00
parent fe96928d7d
commit 1cc54d0327
1 changed files with 1 additions and 1 deletions
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2
src/libstd/macros.rs
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@ -276,7 +276,7 @@ pub mod builtin {
/// // fn concat_idents!(new, fun, name) { } // not usable in this way!
/// # }
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
#[unstable(feature = "concat_idents", issue = "29599")]
#[macro_export]
macro_rules! concat_idents {
($($e:ident),*) => ({ /* compiler built-in */ })