Macro mac::matches
[−]
[src]
macro_rules! matches { ($expr:expr, $($pat:tt)+) => { ... }; }
Returns true if an expression matches a pattern.
Example
assert!(matches!(2, 1 | 2 | 3)); assert!(matches!('x', 'a' ... 'z')); assert!(!matches!(Some(1), None)); assert!(matches!(Some(42), Some(n) if n == 42));