Macro bst_array

macro_rules! bst_array {
    () => { ... };
    ($value:expr; $count:expr) => { ... };
    ($($elem:expr),+ $(,)?) => { ... };
    (with_allocator: $alloc:ty => $value:expr; $count:expr) => { ... };
    (with_allocator: $alloc:ty => $($elem:expr),+ $(,)?) => { ... };
    (@count $x:expr) => { ... };
}

Creates a BSTArray with syntax similar to the standard vec! macro.

Examples

Create an array from a list of values:

let arr = bst_array![1_u32, 2, 3];
assert_eq!(arr.len(), 3);

Create an array with repeated values:

let arr = bst_array![42_u32; 5];
assert_eq!(arr.len(), 5);

Create an empty array:

use commonlibsse_ng::re::BSTArray::BSTArray;
let arr: BSTArray<i32> = bst_array![];
assert!(arr.is_empty());

Create an array with a custom allocator:

use stdx::alloc::Global;
let arr = bst_array![with_allocator: Global => 10, 20];

Create a repeated array with a custom allocator:

use stdx::alloc::Global;
let arr = bst_array![with_allocator: Global => 7; 3];

Note

This macro uses .with_capacity() and .push() under the hood. It does not call resize() or pre-initialize memory.

The repeated variant ([value; count]) requires that value is Clone, but cloning is done by the caller expression (i.e., push(value)).