I've got a simple struct:
struct    Chnk
{  ulong        id;
    char[20]    wrd;
    ubyte        length;

   ...    <--various utility functions and constructors
}
That I'm trying to write to a file.  I want to use an unformatted read/write because I want this to be a random access file.

But when I try to cast a Chnk to a ubyte[], I get an error, and when I try to to!ubyte[] it I get a slightly different error:: Error: template instance isRawStaticArray!() does not match template declaration isRawStaticArray(T, A...)

I don't want to copy it twice each time I read or write it, as I would if, e.g., I used OutBuffer.  How should I approach this?  Do I need to use fread/fwrite?  I'm sure I used to be able to pass a pointer and length, but I can't find that option anymore.

On Friday, 25 March 2016 at 18:25:28 UTC, Charles Hixson wrote:
> But when I try to cast a Chnk to a ubyte[], I get an error, and

rawWrite takes a generic array of anything... you should be able to rawWrite((&your_object)[0 .. 1])

On 03/25/2016 11:32 AM, Adam D. Ruppe via Digitalmars-d-learn wrote:
> On Friday, 25 March 2016 at 18:25:28 UTC, Charles Hixson wrote:
>> But when I try to cast a Chnk to a ubyte[], I get an error, and
>
> rawWrite takes a generic array of anything... you should be able to rawWrite((&your_object)[0 .. 1])
>
Thanks, that compiled.  It's running a test now...and I'm leaving it for a few hours.

OK, after removing a few bugs, preliminary checks say that this works perfectly.
Thanks again, as I never would have even considered that approach.

On 03/25/2016 12:24 PM, Charles Hixson via Digitalmars-d-learn wrote:
>
> On 03/25/2016 11:32 AM, Adam D. Ruppe via Digitalmars-d-learn wrote:
>> On Friday, 25 March 2016 at 18:25:28 UTC, Charles Hixson wrote:
>>> But when I try to cast a Chnk to a ubyte[], I get an error, and
>>
>> rawWrite takes a generic array of anything... you should be able to rawWrite((&your_object)[0 .. 1])
>>
> Thanks, that compiled.  It's running a test now...and I'm leaving it for a few hours.
>
>