| 
```
```{code-block} text
:caption: Output[^gfortran-version]
0 4
0 8
0 4
0 2
0 5
```
[^gfortran-version]: Compiled using `GNU Fortran (Ubuntu 11.3.0-1ubuntu1~22.04) 11.3.0` with no flags
From the Tweet comments, one potential use for this is that
"if a procedure has a required argument that is an integer array,
you can pass `[integer ::]` from the caller."
```{note}
The `associate` construct, used here,
"yields simple abbreviations for more complex statements.
It can be an alias for expressions or variables."[^a]
```
[^a]: [data_type :: ] is a zero-size array of type data_type.pic.twitter.com/XmBx5W4ZBG
— FortranTip (@fortrantip) December 23, 2021