cairo-args-runner 2.0.1

Cairo Args Runner is a utility designed to execute Cairo programs with arguments directly from the command line.
Documentation 
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#[derive(Drop, Serde)]
struct InputData {
    a: Array<felt252>,
}

fn main(x: InputData) -> felt252 {
    sum(x.a)
}

fn sum(x: Array<felt252>) -> felt252 {
    let mut i: u32 = 0;
    let mut sum: felt252 = 0;
    loop {
        if i == x.len() {
            break sum;
        }
        sum = sum + *x.at(i);
        i += 1;
    }
}

#[cfg(test)]
mod tests {
    use super::sum;

    #[test]
    fn it_works() {
        assert(sum(array![1, 2, 3, 4, 5]) == 15, 'it works!');
    }
}