Macro clap::_clap_count_exprs
source · [−]macro_rules! _clap_count_exprs {
() => { ... };
($e:expr) => { ... };
($e:expr, $($es:expr),+) => { ... };
}
Expand description
Counts the number of comma-delimited expressions passed to it. The result is a compile-time
evaluable expression, suitable for use as a static array size, or the value of a const
.
Examples
const COUNT: usize = _clap_count_exprs!(a, 5+1, "hi there!".into_string());
assert_eq!(COUNT, 3);