array literal element types

[Steven Schveighoffer]

On Thu, 12 Nov 2009 20:16:40 -0500, Robert Jacques <sandford at jhu.edu>  
wrote:

> On Thu, 12 Nov 2009 16:42:45 -0500, Walter Bright  
> <newshound1 at digitalmars.com> wrote:
>
>> Currently, the type is determined by the type of the first element and  
>> the rest are implicitly cast to it.
>>
>> I propose changing it to being the type produced by applying the ?:  
>> logic repeatedly to all the elements.
>
> Given how numeric literals currently work:
> vote--
>
> for example currently:
> float[] = [1.0f, 2.5, 5.6, 0.8].dup;
>
> under the proposal
> float[] = [1.0f, 2.5f, 5.6f, 0.8f].dup;
>

How about if a cast is sticky?  That is, the last detected cast inside an  
array literal is applied to subsequent elements that do not have a cast:

[cast(float)1.0, 2.5, 5.6, 0.8]; // equivalent to [1.0f, 2.5f, 5.6f, 0.8f]  
=> float[]

[cast(float)1.0, 2.5, cast(double)5.6, 0.8]; // equivalent to [1.0f, 2.5f,  
5.6, 0.8] => double[]

-Steve