stabilize const_int_from_str

library/core/src/lib.rs

@@ -128,7 +128,6 @@
 #![feature(const_hash)]
 #![feature(const_heap)]
 #![feature(const_index_range_slice_index)]
-#![feature(const_int_from_str)]
 #![feature(const_intrinsic_copy)]
 #![feature(const_intrinsic_forget)]
 #![feature(const_ipv4)]

library/core/src/num/error.rs

@@ -113,7 +113,7 @@ pub enum IntErrorKind {
 impl ParseIntError {
     /// Outputs the detailed cause of parsing an integer failing.
     #[must_use]
-    #[rustc_const_unstable(feature = "const_int_from_str", issue = "59133")]
+    #[rustc_const_stable(feature = "const_int_from_str", since = "CURRENT_RUSTC_VERSION")]
     #[stable(feature = "int_error_matching", since = "1.55.0")]
     pub const fn kind(&self) -> &IntErrorKind {
         &self.kind

library/core/src/num/mod.rs

@@ -1387,6 +1387,7 @@ fn from_str(src: &str) -> Result<Self, ParseIntError> {
 #[doc(hidden)]
 #[inline(always)]
 #[unstable(issue = "none", feature = "std_internals")]
+#[rustc_const_unstable(issue = "none", feature = "const_int_cannot_overflow")]
 pub const fn can_not_overflow<T>(radix: u32, is_signed_ty: bool, digits: &[u8]) -> bool {
     radix <= 16 && digits.len() <= mem::size_of::<T>() * 2 - is_signed_ty as usize
 }
@@ -1410,6 +1411,7 @@ const fn from_str_radix_panic(radix: u32) {
     intrinsics::const_eval_select((radix,), from_str_radix_panic_ct, from_str_radix_panic_rt);
 }
 
+#[allow_internal_unstable(const_int_cannot_overflow)]
 macro_rules! from_str_radix {
     ($($int_ty:ty)+) => {$(
         impl $int_ty {
@@ -1436,7 +1438,7 @@ impl $int_ty {
             #[doc = concat!("assert_eq!(", stringify!($int_ty), "::from_str_radix(\"A\", 16), Ok(10));")]
             /// ```
             #[stable(feature = "rust1", since = "1.0.0")]
-            #[rustc_const_unstable(feature = "const_int_from_str", issue = "59133")]
+            #[rustc_const_stable(feature = "const_int_from_str", since = "CURRENT_RUSTC_VERSION")]
             pub const fn from_str_radix(src: &str, radix: u32) -> Result<$int_ty, ParseIntError> {
                 use self::IntErrorKind::*;
                 use self::ParseIntError as PIE;
@@ -1566,7 +1568,7 @@ impl $size {
         #[doc = concat!("assert_eq!(", stringify!($size), "::from_str_radix(\"A\", 16), Ok(10));")]
         /// ```
         #[stable(feature = "rust1", since = "1.0.0")]
-        #[rustc_const_unstable(feature = "const_int_from_str", issue = "59133")]
+        #[rustc_const_stable(feature = "const_int_from_str", since = "CURRENT_RUSTC_VERSION")]
         pub const fn from_str_radix(src: &str, radix: u32) -> Result<$size, ParseIntError> {
             match <$t>::from_str_radix(src, radix) {
                 Ok(x) => Ok(x as $size),

library/core/tests/lib.rs

@@ -16,7 +16,6 @@
 #![feature(const_hash)]
 #![feature(const_heap)]
 #![feature(const_intrinsic_copy)]
-#![feature(const_int_from_str)]
 #![feature(const_maybe_uninit_as_mut_ptr)]
 #![feature(const_nonnull_new)]
 #![feature(const_pointer_is_aligned)]

tests/ui/consts/const-eval/parse_ints.rs

@@ -1,5 +1,3 @@
-#![feature(const_int_from_str)]
-
 const _OK: () = match i32::from_str_radix("-1234", 10) {
     Ok(x) => assert!(x == -1234),
     Err(_) => panic!(),

tests/ui/consts/const-eval/parse_ints.stderr

@@ -6,7 +6,7 @@ error[E0080]: evaluation of constant value failed
 note: inside `core::num::<impl u64>::from_str_radix`
   --> $SRC_DIR/core/src/num/mod.rs:LL:COL
 note: inside `_TOO_LOW`
-  --> $DIR/parse_ints.rs:7:24
+  --> $DIR/parse_ints.rs:5:24
    |
 LL | const _TOO_LOW: () = { u64::from_str_radix("12345ABCD", 1); };
    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -20,7 +20,7 @@ error[E0080]: evaluation of constant value failed
 note: inside `core::num::<impl u64>::from_str_radix`
   --> $SRC_DIR/core/src/num/mod.rs:LL:COL
 note: inside `_TOO_HIGH`
-  --> $DIR/parse_ints.rs:8:25
+  --> $DIR/parse_ints.rs:6:25
    |
 LL | const _TOO_HIGH: () = { u64::from_str_radix("12345ABCD", 37); };
    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^