Re: Workaround to support default parameter values

2025-03-20 Thread Marcos Cruz 
Henrik Grubbström escribió/skribis/wrote/scrit (2025-03-20T19:59:55+0100):

> In Pike 9.0 (currently in beta) the following syntax is supported:
> 
> ```pike
> int typed_number(string prompt = "") {
>// (…)
> }
> ```

Great.  That will make things simpler.

The other day I compiled and installed 8.0.1956 on Debian 12.10 (which
includes only 8.0.1738). I have downloaded 9.0.9 to try it soon.

>prompt = prompt || "";

Meanwhile, that's better than checking with `stringp`.

Thanks.


-- 
Marcos Cruz
http://programandala.net

Re: Workaround to support default parameter values

2025-03-20 Thread Henrik Grubbström 

On Thu, 20 Mar 2025, Marcos Cruz wrote:


Since Pike does not support default parameter values, I use this
workaround:

```pike
int typed_number(string|void prompt) {
   if (!stringp(prompt)) {
   prompt = "";
   }
   // (…)
}
```

Is there a better approach?


In Pike 9.0 (currently in beta) the following syntax is supported:

```pike
int typed_number(string prompt = "") {
   // (…)
}
```

It will compile to code similar to

```pike
int typed_number(string|void prompt) {
   prompt = prompt || "";
   // (…)
}
```

Except that the variable `prompt` will have the type
`string` and not `string|void`.

Did this help?

/grubba

--
Henrik Grubbström   [email protected]
Roxen Internet Software AB