[−][src]Function classific::eq_by_ref
pub fn eq_by_ref<S, T: ?Sized, F>(map: F) -> EqByRef<S, T, F> where
S: ?Sized,
T: PartialEq<T>,
F: Fn(&S) -> &T,
This function returns an EqClass
for S
which first maps values to &T
then compare them with PartialEq::eq
.
Examples
use classific::{EqClass, eq_by_ref}; assert!(eq_by_ref(|t: &(i8, &'static str)| &t.1).eq(&(1, "2"), &(3, "2")));