Cargo Features
[dependencies]
opengm_crypto = { version = "0.1.0", default-features = false, features = ["std", "rug"] }
- default = std
-
The
std
feature is set by default wheneveropengm_crypto
is added without
somewhere in the dependency tree.default-features = false - std default = ctor
-
Enables std of num, os_rng and std of rand and std of thiserror
thiserror:
Std feature enables support for formatting std::path::{Path, PathBuf}
conveniently in an error message.
#[derive(Error, Debug)]
#[error("failed to create configuration file {path}")]
pub struct MyError {
pub path: PathBuf,
pub source: std::io::Error,
}
Without std, this would need to be written #[error("... {}", path.display())].
Features from optional dependencies
In crates that don't use the dep:
syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.