Macro ct_for 

ct_for!() { /* proc-macro */ }

Expands a code snippet n times and substitutes an identifier with given values

Example

use ct_for::ct_for;

let c = 8;
ct_for!(x in ["5", 6, c] do
    println!("{}", x);
);
// expands to
println!("{}", "5");
println!("{}", 6);
println!("{}", c);