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| -rw-r--r-- | src/doc/unstable-book/src/concat-idents.md | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/doc/unstable-book/src/concat-idents.md b/src/doc/unstable-book/src/concat-idents.md index c9a48293dba..ecfd34a22e5 100644 --- a/src/doc/unstable-book/src/concat-idents.md +++ b/src/doc/unstable-book/src/concat-idents.md @@ -6,5 +6,17 @@ The tracking issue for this feature is: [#29599] ------------------------ +The `concat_idents` feature adds a macro for concatenating multiple identifiers +into one identifier. +## Examples +```rust +#![feature(concat_idents)] + +fn main() { + fn foobar() -> u32 { 23 } + let f = concat_idents!(foo, bar); + assert_eq!(f(), 23); +} +``` \ No newline at end of file |