Let RawOsError be a pub type

Author: dhardy

src/error.rs

@@ -9,11 +9,14 @@ cfg_if::cfg_if!(
     if #[cfg(target_os = "uefi")] {
         // See the UEFI spec for more information:
         // https://uefi.org/specs/UEFI/2.10/Apx_D_Status_Codes.html
-        type RawOsError = usize;
+        pub type RawOsError = usize;
         type NonZeroRawOsError = core::num::NonZeroUsize;
         const UEFI_ERROR_FLAG: RawOsError = 1 << (RawOsError::BITS - 1);
     } else {
-        type RawOsError = i32;
+        /// Raw error code
+        ///
+        /// This type is platform-dependent.
+        pub type RawOsError = i32;
         type NonZeroRawOsError = core::num::NonZeroI32;
     }
 );

src/lib.rs

@@ -39,7 +39,7 @@ mod util;
 #[cfg(feature = "std")]
 mod error_std_impls;
 
-pub use crate::error::Error;
+pub use crate::error::{Error, RawOsError};
 
 /// Fill `dest` with random bytes from the system's preferred random number source.
 ///