Re: function defaults

[Bill Allombert <Bill.Allombert@math.u-bordeaux1.fr>]

On Mon, Mar 11, 2013 at 06:54:17PM +0100, Bill Allombert wrote:
> I created a branch bill-strictargs which add a new default:
> 
> Doc: this toggle is either 1 (on) or 0 (off). If on, all arguments to new
>  functions are mandatory unless the function supply an explicit default value.
>  Otherwise arguments have the default value $0$.
> 
>  The default value is \kbd{0}.
> 
> Example:
> 
> ? default(strictargs,1)
> ? f(x,e=0)=x+e
> %1 = (x,e=0)->x+e
> ? f(5)
> %2 = 5
> ? f()
>   ***   at top-level: f()
>   ***                 ^---
>   ***   in function f:
>   ***                 ^-
>   ***   missing mandatory argument in user function.
> 
> the error message should be improved.
> 
> Note that this affect functions at compile time, but the test is done at runtime.

I have commited this branch. Thanks for the suggestion!

Cheers,
Bill.