Const-stabilize String::new.

rust-lang · Sep 16, 2019 · 9b3e11f · 9b3e11f
1 parent d5fe583
commit 9b3e11f
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Showing 2 changed files with 2 additions and 4 deletions.
diff --git a/src/liballoc/string.rs b/src/liballoc/string.rs
@@ -369,7 +369,7 @@ impl String {
  /// ```
  #[inline]
  #[stable(feature = "rust1", since = "1.0.0")]
- #[rustc_const_unstable(feature = "const_string_new")]
+ #[cfg_attr(bootstrap, rustc_const_unstable(feature = "const_string_new"))]
  pub const fn new() -> String {
  String { vec: Vec::new() }
  }

diff --git a/src/test/ui/collections-const-new.rs b/src/test/ui/collections-const-new.rs
@@ -1,11 +1,9 @@
-// run-pass
+// check-pass
 
 // Test several functions can be used for constants
 // 1. Vec::new()
 // 2. String::new()
 
-#![feature(const_string_new)]
-
 const MY_VEC: Vec<usize> = Vec::new();
 
 const MY_STRING: String = String::new();