Support char::is_digit in const contexts

2024-10-27 14:31:58 -07:00 · 2024-10-27 14:31:58 -07:00 · 66209cd9b5
commit 66209cd9b5
parent 81d6652e74
1 changed files with 2 additions and 1 deletions
--- a/library/core/src/char/methods.rs
+++ b/library/core/src/char/methods.rs
@ -320,8 +320,9 @@ pub const fn from_digit(num: u32, radix: u32) -> Option<char> {
    /// '1'.is_digit(37);
    /// ```
    #[stable(feature = "rust1", since = "1.0.0")]
+    #[rustc_const_unstable(feature = "const_char_is_digit", issue = "132241")]
    #[inline]
-    pub fn is_digit(self, radix: u32) -> bool {
+    pub const fn is_digit(self, radix: u32) -> bool {
        self.to_digit(radix).is_some()
    }