0.3.6 - This version may not be safe as it has not been updated for a long time. Find out if your coding project uses this component and get notified of any reported security vulnerabilities with Meterian-X Open Source Security Platform
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Apache-2.0 - Apache License 2.0This crate implements an offset_of!(...) macro which safely encapsulates
a pointer-to-member.
Example:
struct Foo {
x: u32,
y: f64
}
let foo_y = offset_of!(Foo => y);
let mut a = Foo { x: 1, y: 2.0 };
*foo_y.apply_mut(&mut a) = 3.0;
assert!(a.y == 3.0);The macro returns an instance of FieldOffset<T, U>, which represents a
pointer to a field of type U within a containing type, T.
The FieldOffset type implements Add. Applying the resulting field offset
is equivalent to applying the first field offset, then applying the second
field offset.
The macro also supports accessing nested fields:
let bar_foo_y = offset_of!(Bar => foo: Foo => y);