The partial! macro allows for partial application of a function.
partial!(some_fn => arg0, _, arg2, _) returns the closure |x1, x3| some_fn(arg0, x1, arg2, x3).
Move closures are created by adding move in front of the function: partial!(move ..)
use partial_application::partial;// When you're using the 2015 edition of Rust, you need to import the macro like this#[macro_use]externcrate partial_application;fnfoo(a:i32,b:i32,c:i32,d:i32,mul:i32,off:i32) -> i32{(a + b*b + c.pow(3) + d.pow(4))* mul - off
}fnmain(){let bar = partial!(foo => _, _,10,42,10,10);assert_eq!(
foo(15,15,10,42,10,10),
bar(15,15));}