Function option_into_with_c_str

src/path/arg.rs:96–106

Runs a closure on `arg` where `A` is mapped to a `&CStr`

(arg: Option<A>, f: F)

/// Runs a closure on `arg` where `A` is mapped to a `&CStr`
pub fn option_into_with_c_str<T, F, A>(arg: Option<A>, f: F) -> io::Result<T>
where
    A: Arg + Sized,
    F: FnOnce(Option<&CStr>) -> io::Result<T>,
{
    if let Some(arg) = arg {
        arg.into_with_c_str(|p| f(Some(p)))
    } else {
        f(None)
    }
}

impl Arg for &str {
    #[inline]