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.into_glib()
.
use glib::UChar;
use std::convert::TryFrom;
UChar::from(b'a');
UChar::try_from('a').unwrap();
assert!(UChar::try_from('☔').is_err());
ⓘextern "C" fn have_a_byte(b: libc::c_uchar);
have_a_byte(UChar::from(b'a').into_glib());
Performs copy-assignment from
source
.
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Formats the value using the given formatter.
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Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
This method tests for self
and other
values to be equal, and is used
by ==
.
This method tests for !=
. The default implementation is almost always
sufficient, and should not be overridden without very good reason.
The type returned in the event of a conversion error.
Performs the conversion.
Immutably borrows from an owned value.
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Mutably borrows from an owned value.
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Returns the argument unchanged.
Calls U::from(self)
.
That is, this conversion is whatever the implementation of
From<T> for U
chooses to do.
The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning.
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Uses borrowed data to replace owned data, usually by cloning.
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The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.