Rollup merge of #137439 - clarfonthey:c-str-module, r=tgross35

Stabilise `std::ffi::c_str`

This finished FCP in #112134 but never actually got a stabilisation PR. Since the FCP in #120048 recently passed to add the `os_str` module, it would be nice to also merge this too, to ensure that both get added in the next version.

Note: The added stability attributes which *somehow* were able to be omitted before (rustc bug?) were added based on the fact that they were added in 302551388b1942bb4216bb5a15d9d55cee3643a8, which ended up in 1.85.0.

Closes: https://github.com/rust-lang/rust/issues/112134

r? libs-api

2 files changed, 3 insertions, 1 deletions

diff --git a/library/alloc/src/ffi/c_str.rs b/library/alloc/src/ffi/c_str.rs
index d5b19470e31..2d05be51811 100644
--- a/library/alloc/src/ffi/c_str.rs
+++ b/library/alloc/src/ffi/c_str.rs
@@ -818,6 +818,7 @@ impl From<Vec<NonZero<u8>>> for CString {
     }
 }
 
+#[stable(feature = "c_string_from_str", since = "1.85.0")]
 impl FromStr for CString {
     type Err = NulError;
 
@@ -830,6 +831,7 @@ impl FromStr for CString {
     }
 }
 
+#[stable(feature = "c_string_from_str", since = "1.85.0")]
 impl TryFrom<CString> for String {
     type Error = IntoStringError;
 
diff --git a/library/alloc/src/ffi/mod.rs b/library/alloc/src/ffi/mod.rs
index 695d7ad07cf..05a2763a225 100644
--- a/library/alloc/src/ffi/mod.rs
+++ b/library/alloc/src/ffi/mod.rs
@@ -87,5 +87,5 @@ pub use self::c_str::CString;
 #[stable(feature = "alloc_c_string", since = "1.64.0")]
 pub use self::c_str::{FromVecWithNulError, IntoStringError, NulError};
 
-#[unstable(feature = "c_str_module", issue = "112134")]
+#[stable(feature = "c_str_module", since = "CURRENT_RUSTC_VERSION")]
 pub mod c_str;