When I concatenate arrays like this, I get a strange compile error:

Error: incompatible types for ((cast(int)a) ~ (cast(int)b)): 'int' and 'int'

Code:

public ubyte[] toArray(ubyte a, ubyte b, ubyte c) {
	return a ~ b ~ c;
}

On Wednesday, 9 April 2014 at 19:35:49 UTC, Jeroen Bollen wrote:
> When I concatenate arrays like this, I get a strange compile error:
>
> Error: incompatible types for ((cast(int)a) ~ (cast(int)b)): 'int' and 'int'
>
> Code:
>
> public ubyte[] toArray(ubyte a, ubyte b, ubyte c) {
> 	return a ~ b ~ c;
> }

Oh derp I already figured it out. It still is a strange error message though.

On Wednesday, 9 April 2014 at 19:39:13 UTC, Jeroen Bollen wrote:
> On Wednesday, 9 April 2014 at 19:35:49 UTC, Jeroen Bollen wrote:
>> When I concatenate arrays like this, I get a strange compile error:
>>
>> Error: incompatible types for ((cast(int)a) ~ (cast(int)b)): 'int' and 'int'
>>
>> Code:
>>
>> public ubyte[] toArray(ubyte a, ubyte b, ubyte c) {
>> 	return a ~ b ~ c;
>> }
>
> Oh derp I already figured it out. It still is a strange error message though.

Not really. It gives you the expression, tells you the types are incompatible and tells you what those types were. The reason why you get int is because operations on integral types are promoted to int.

public ubyte[] toArray(ubyte a, ubyte b, ubyte c) { return [a, b, c]; }