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Force the Cow into a String

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This commit is contained in:
Jubilee Young 2022-07-26 14:10:26 -07:00
parent 79e0543060
commit d48a869b9d
1 changed files with 3 additions and 3 deletions
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6
library/core/src/ffi/c_str.rs
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@ -65,9 +65,9 @@ use crate::str;
/// extern "C" { fn my_string() -> *const c_char; }
///
/// fn my_string_safe() -> String {
/// unsafe {
/// String::from_utf8_lossy(CStr::from_ptr(my_string()))
/// }
/// let cstr = unsafe { CStr::from_ptr(my_string()) };
/// // Get copy-on-write Cow<'_, str>, then guarantee a freshly-owned String allocation
/// String::from_utf8_lossy(cstr.to_bytes()).to_string()
/// }
///
/// println!("string: {}", my_string_safe());