# clap::_clap_count_exprs! [−] [src]

    macro_rules! _clap_count_exprs {
        () => { ... };
        ($e:expr) => { ... };
        ($e:expr, $($es:expr),+) => { ... };
    }

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);

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