try_all

Rust iterator extensions to operate on Results effectively.

try_all

Tries all items of the iterator until one fails (or all succeed).

Returns: The iterator of all successes, or the first failure.

Examples:

Useful for propagating failures from within closures with ? operator fn parse_all_numbers(strs: &Vec<&str>) -> Result<Vec<u64>, std::num::ParseIntError> { Ok(strs.iter().map(|s| s.parse()).try_all()?.collect()) }