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Document guard expressions in matches!

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Simon Sapin 2019-10-23 15:42:52 +02:00
parent f7ebe19338
commit e76a184615
1 changed files with 4 additions and 1 deletions
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5
src/libcore/macros.rs
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@ -238,7 +238,10 @@ macro_rules! debug_assert_ne {
($($arg:tt)*) => (if $crate::cfg!(debug_assertions) { $crate::assert_ne!($($arg)*); })
}
/// Returns whether the given expression matches (any of) the given pattern(s).
/// Returns whether the given expression matches any of the given patterns.
///
/// Like in a `match` expression, the pattern can be optionally followed by `if`
/// and a guard expression that has access to names bound by the pattern.
///
/// # Examples
///