Macro useful_macro::vec_slice

macro_rules! vec_slice {
    ($vec:expr,$slice:expr) => { ... };
}

vec_slice!() used to slice vec by range type can be Vec<i32> Vec<i64> Vec<i128> Vec<f32> Vec<f64>,Vec<&str> return return the same type

use useful_macro::*;
let v1 = vec_slice!(vec![1.2, 1.5, 9.0], [..2]);
let v2 = vec_slice!(vec![1, 1, 9, 90, 87, 0, 2], [4..6]);
let v3 = vec_slice!(vec![1.2, 1.5, 9.0], [..]);
let v4 = vec_slice!(vec![1.2, 1.5, 9.0], [1..]);
let v5 = vec_slice!(vec!["1", "2", "3", "4", "5"], [2..5]);
assert_eq!(v1, vec![1.2, 1.5]);
assert_eq!(v2, vec![87, 0]);
assert_eq!(v3, vec![1.2, 1.5, 9.0]);
assert_eq!(v4, vec![1.5, 9.0]);
assert_eq!(v5, vec!["3", "4", "5"]);