Macro arrayfire::eval

macro_rules! eval {
    ( $l:ident [ $($lb:literal : $le:literal : $ls:literal),+ ] =
      $r:ident [ $($rb:literal : $re:literal : $rs:literal),+ ]) => { ... };
    ( $l:ident [ $($lb:literal : $le:literal : $ls:literal),+ ] = $r:expr ) => { ... };
    ($lhs:ident [ $($lhs_e:expr),+ ] = $rhs:ident [ $($rhs_e:expr),+ ]) => { ... };
    ($lhs:ident [ $($lhs_e:expr),+ ] = $rhs:expr) => { ... };
    [$($x:expr),+] => { ... };
}

Macro to evaluate individual Arrays or assignment operations

• Evaluate on one or more Array identifiers: essentially calls Array::eval on each of those Array objects individually.

  use arrayfire::{dim4, eval, randu};
  let dims = dim4!(5, 5);
  let a = randu::<f32>(dims);
  let b = a.clone();
  let c = a.clone();
  let d = a.clone();
  let x = a - b;
  let y = c * d;
  eval!(&x, &y);

• Evaluate assignment operations: This is essentially syntactic sugar for modifying portions of Array with another Array using a combination of Sequences and/or Array objects. Full examples for this use case are provided in the tutorials book