hack cstr is_empty

fee1-dead · fee1-dead · commit ddc02b0f321d · 2023-04-16T07:05:54.000Z
diff --git a/library/core/src/ffi/c_str.rs b/library/core/src/ffi/c_str.rs
@@ -536,7 +536,8 @@ impl CStr {
     pub const fn is_empty(&self) -> bool {
         // SAFETY: We know there is at least one byte; for empty strings it
         // is the NUL terminator.
-        (unsafe { self.inner.get_unchecked(0) }) == &0
+        // FIXME(const-hack): use get_unchecked
+        unsafe { *self.inner.as_ptr() == 0 }
     }
 
     /// Converts this C string to a byte slice.

Original file line number	Diff line number	Diff line change
`@@ -536,7 +536,8 @@ impl CStr {`
`536`	`536`	`pub const fn is_empty(&self) -> bool {`
`537`	`537`	`// SAFETY: We know there is at least one byte; for empty strings it`
`538`	`538`	`// is the NUL terminator.`
`539`		`- (unsafe { self.inner.get_unchecked(0) }) == &0`
	`539`	`+ // FIXME(const-hack): use get_unchecked`
	`540`	`+ unsafe { *self.inner.as_ptr() == 0 }`
`540`	`541`	`}`
`541`	`542`
`542`	`543`	`/// Converts this C string to a byte slice.`