Dynamic array initialisers

[Gide Nwawudu]

On Thu, 17 Apr 2008 17:33:45 -0700, Robert Fraser
<fraserofthenight at gmail.com> wrote:

>Gide Nwawudu wrote:
>> On Thu, 17 Apr 2008 18:10:20 -0400, Chris R. Miller
>> <lordSaurontheGreat at gmail.com> wrote:
>> 
>>> Gide Nwawudu Wrote:
>>>
>>>> I have the following code, I am attempting to initialise a variable
>>>> with a dynamic array. Should the code compile or are lines 6 and 7
>>>> just wrong? 
>>>>
>>>> test.d
>>>> ------
>>>> import std.stdio;
>>>>
>>>> void main() {
>>>> 	auto  numbers1 = [ 1, 2, 3, 4]; // ok, static array int[4]
>>>> 	int[] numbers2 = ([ 1, 2, 3, 4])[]; // ok
>>>> 	auto  numbers3 = [ 1, 2, 3, 4][];   // Doesn't compile
>>>> 	int[] numbers4 = [ 1, 2, 3, 4][];   // Doesn't compile
>>>> 	
>>>> 	writefln(typeof(numbers1).stringof);
>>>> 	writefln(typeof(numbers2).stringof);
>>>> }
>>>>
>>>>
>>>> C:\>dmd test.d
>>>> a.d(6): semicolon expected following auto declaration, not '['
>>>> a.d(7): semicolon expected, not '['
>>> You're not using correct syntax.  The first problem line, auto  numbers3 = [ 1, 2, 3, 4][];, doesn't work because you forgot a comma.  I think you want auto to be evaluated as int[][], however, you have two arrays without a comma seperator.  It should be like this:
>>>
>>> auto numbers3 = [ 1, 2, 3, 4], [];
>>>
>>> The second line has the same problem, as well as it's improperly declared.  It should be declared as int[][].
>> 
>> I was trying create a dynamic array of ints in the same way that
>>  "hello"[] creates a dynamic array of chars. Maybe I'm mixing up array
>> and string syntaxes?
>> 
>> Gide
>
>It's implicitly castable to a dynamic array (I think). Just don't use 
>auto (isn't that "feature" annoying?):
>
>int[] numbers = [1, 2, 3, 4];

Thanks, maybe I've been (ab)using auto too much.

Gide