[−][src]Type Definition anyhow::Result
type Result<T, E = Error> = Result<T, E>;
Result<T, Error>
This is a reasonable return type to use throughout your application but also
for fn main
; if you do, failures will be printed along with any
context and a backtrace if one was captured.
anyhow::Result
may be used with one or two type parameters.
use anyhow::Result; fn demo1() -> Result<T> {...} // ^ equivalent to std::result::Result<T, anyhow::Error> fn demo2() -> Result<T, OtherError> {...} // ^ equivalent to std::result::Result<T, OtherError>
Example
use anyhow::Result; fn main() -> Result<()> { let config = std::fs::read_to_string("cluster.json")?; let map: ClusterMap = serde_json::from_str(&config)?; println!("cluster info: {:#?}", map); Ok(()) }