make sure this `expanding_array` has capacity of at least `new_capacity` and we are able to add elements without allocating a new internal array.
This will create an `expanding_array` whose internal array is the same of `expanding_array.this` unless the existing capacity is less than `new_capacity` or the existing array was already expanded using by a call to `add`.
In the latter cases, a new internal array of required capacity will be allocated and the existing elements will be copied over.
0.095dev (2025-10-09 18:01:25 GIT hash 4826e516431c193e428991dd546a46472973d8d4 built by fridi@fzen)
`new_capacity` and we are able to add elements without
allocating a new internal array.
This will create an `expanding_array` whose internal array
is the same of `expanding_array.this` unless the existing
capacity is less than `new_capacity` or the existing array
was already expanded using by a call to `add`.
In the latter cases, a new internal array of required capacity
will be allocated and the existing elements will be copied over.