implement Default for AsciiChar

rust-lang · Feb 13, 2024 · 1c7ea30 · 1c7ea30
1 parent fd9bb7f
commit 1c7ea30
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/library/core/src/ascii/ascii_char.rs b/library/core/src/ascii/ascii_char.rs
@@ -58,7 +58,7 @@ use crate::mem::transmute;
 #[unstable(feature = "ascii_char", issue = "110998")]
 #[repr(u8)]
 pub enum AsciiChar {
-    /// U+0000
+    /// U+0000 (The default variant)
     #[unstable(feature = "ascii_char_variants", issue = "110998")]
     Null = 0,
     /// U+0001

diff --git a/library/core/src/default.rs b/library/core/src/default.rs
@@ -2,6 +2,8 @@
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
+use crate::ascii::Char as AsciiChar;
+
 /// A trait for giving a type a useful default value.
 ///
 /// Sometimes, you want to fall back to some kind of default value, and
@@ -158,6 +160,7 @@ macro_rules! default_impl {
 default_impl! { (), (), "Returns the default value of `()`" }
 default_impl! { bool, false, "Returns the default value of `false`" }
 default_impl! { char, '\x00', "Returns the default value of `\\x00`" }
+default_impl! { AsciiChar, AsciiChar::Null, "Returns the default value of `Null`" }
 
 default_impl! { usize, 0, "Returns the default value of `0`" }
 default_impl! { u8, 0, "Returns the default value of `0`" }