der: use core::error::Error (#1553)

tarcieri · web-flow · commit 14d060cefff1 · 2024-10-07T18:25:49.000-06:00
Allows the `Error` trait to be used on `no_std` platforms
diff --git a/der/src/error.rs b/der/src/error.rs
@@ -70,8 +70,7 @@ impl Error {
     }
 }
 
-#[cfg(feature = "std")]
-impl std::error::Error for Error {}
+impl core::error::Error for Error {}
 
 impl fmt::Display for Error {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {

Original file line number	Diff line number	Diff line change
`@@ -70,8 +70,7 @@ impl Error {`
`70`	`70`	`}`
`71`	`71`	`}`
`72`	`72`
`73`		`-#[cfg(feature = "std")]`
`74`		`-impl std::error::Error for Error {}`
	`73`	`+impl core::error::Error for Error {}`
`75`	`74`
`76`	`75`	`impl fmt::Display for Error {`
`77`	`76`	`fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {`