core: simplify CStr::default()

joboet · joboet · commit aa537824c404 · 2025-09-24T00:50:36.000+02:00
Just use a `CStr`-literal...
diff --git a/library/core/src/ffi/c_str.rs b/library/core/src/ffi/c_str.rs
@@ -179,9 +179,7 @@ impl fmt::Debug for CStr {
 impl Default for &CStr {
     #[inline]
     fn default() -> Self {
-        const SLICE: &[c_char] = &[0];
-        // SAFETY: `SLICE` is indeed pointing to a valid nul-terminated string.
-        unsafe { CStr::from_ptr(SLICE.as_ptr()) }
+        c""
     }
 }
 

Original file line number	Diff line number	Diff line change
`@@ -179,9 +179,7 @@ impl fmt::Debug for CStr {`
`179`	`179`	`impl Default for &CStr {`
`180`	`180`	`#[inline]`
`181`	`181`	`fn default() -> Self {`
`182`		`- const SLICE: &[c_char] = &[0];`
`183`		- // SAFETY: `SLICE` is indeed pointing to a valid nul-terminated string.
`184`		`- unsafe { CStr::from_ptr(SLICE.as_ptr()) }`
	`182`	`+ c""`
`185`	`183`	`}`
`186`	`184`	`}`
`187`	`185`