pub struct UChar(pub c_uchar);
Expand description
Wrapper for values where C functions expect a plain C unsigned char
This UChar
type is a wrapper over an libc::c_uchar
, so that we can pass it to Glib or C functions.
The check for whether a Rust char
(a Unicode scalar value) actually fits in a libc::c_uchar
is
done in the new
function; see its documentation for details.
The inner libc::c_uchar
(which is equivalent to u8
can be extracted with .0
, or
by calling my_char.to_glib()
.
Tuple Fields
0: c_uchar
Implementations
sourceimpl UChar
impl UChar
sourcepub fn new(c: char) -> Option<UChar>
pub fn new(c: char) -> Option<UChar>
Creates a Some(UChar)
if the given char
is representable as an libc::c_uchar
Example
ⓘ
extern "C" fn have_a_byte(b: libc::c_uchar);
let a = Char::new('a').unwrap();
assert!(a.0 == 65);
have_a_byte(a.to_glib());
let not_representable = Char::new('☔');
assert!(not_representable.is_none());
Trait Implementations
impl Copy for UChar
impl Eq for UChar
impl StructuralEq for UChar
impl StructuralPartialEq for UChar
Auto Trait Implementations
impl RefUnwindSafe for UChar
impl Send for UChar
impl Sync for UChar
impl Unpin for UChar
impl UnwindSafe for UChar
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more