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auxv 0.3.3

Access the ELF auxiliary vector (aka auxv or auxval).
Documentation 
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extern crate auxv;

fn main() {
    match auxv::procfs::search_procfs_auxv(&[auxv::AT_HWCAP]) {
        Ok(map) => {
            match map.get(&auxv::AT_HWCAP) {
                Some(v) => println!("Got HWCAP 0x{:016X}", v),
                None => println!("No HWCAP")
            }
        }
        Err(e) => println!("Could not search procfs auxv {:?}", e)
    }
}