diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/libstd/keyword_docs.rs | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/src/libstd/keyword_docs.rs b/src/libstd/keyword_docs.rs index bef6bc92661..94751cec416 100644 --- a/src/libstd/keyword_docs.rs +++ b/src/libstd/keyword_docs.rs @@ -286,11 +286,13 @@ mod fn_keyword { } // /// The `for` keyword. /// -/// `for` is primarily used in for-in-loops, but it has a few other pieces of syntactic uses such as -/// `impl Trait for Type` (see [`impl`] for more info on that). for-in-loops, or to be more -/// precise, iterator loops, are a simple syntactic sugar over an exceedingly common practice -/// within Rust, which is to loop over an iterator until that iterator returns `None` (or `break` -/// is called). +/// `for` is primarily used in for-in-loops, but it has a few other pieces of syntactic +/// uses. `for` is used when implementing traits as in `impl Trait for Type` (see +/// [`impl`] for more info on that). `for` is also used for [higher-ranked trait bounds] +/// as in `for<'a> &'a T: PartialEq<i32>`. for-in-loops, or to be more precise, iterator +/// loops, are a simple syntactic sugar over an exceedingly common practice within Rust, +/// which is to loop over an iterator until that iterator returns `None` (or `break` is +/// called). /// /// ```rust /// for i in 0..5 { |