Menu
Search

Forums

Forum Index

Thread overview
how to raw read a struct or value?
Jul 14, 2011
hasnoth
Jul 14, 2011
Graham Fawcett
Jul 14, 2011
Graham Fawcett
July 14, 2011
Gravatar of hasnothPosted by hasnothReply
hasnoth
Gravatar of hasnoth


Reply
  auto file = io.File("test.txt", "rb");
  auto fp = file.getFP();
  int x;
  io.fread(&x, x.sizeof, 1, fp);

  what's the “d method” to do that?
July 14, 2011
Gravatar of Graham FawcettPosted by Graham Fawcett
in reply to hasnoth		Reply
Graham Fawcett
Gravatar of Graham Fawcett
Posted in reply to hasnoth


Reply
On Thu, 14 Jul 2011 09:01:29 +0000, hasnoth wrote:

> auto file = io.File("test.txt", "rb");
>   auto fp = file.getFP();
>   int x;
>   io.fread(&x, x.sizeof, 1, fp);
> 
>   what's the “d method” to do that?

The same method:

import core.stdc.stdio : fread;
fread(&x, x.sizeof, 1, fp);

or, if you are using an array, you can use File.rawRead:

int[10] xx;
f.rawRead(xx);

Graham
July 14, 2011
Gravatar of Steven SchveighofferPosted by Steven Schveighoffer
in reply to Graham Fawcett		Reply
Steven Schveighoffer
Gravatar of Steven Schveighoffer
Posted in reply to Graham Fawcett


Reply
On Thu, 14 Jul 2011 09:36:47 -0400, Graham Fawcett <fawcett@uwindsor.ca> wrote:

> On Thu, 14 Jul 2011 09:01:29 +0000, hasnoth wrote:
>
>> auto file = io.File("test.txt", "rb");
>>   auto fp = file.getFP();
>>   int x;
>>   io.fread(&x, x.sizeof, 1, fp);
>>
>>   what's the “d method” to do that?
>
> The same method:
>
> import core.stdc.stdio : fread;
> fread(&x, x.sizeof, 1, fp);
>
> or, if you are using an array, you can use File.rawRead:
>
> int[10] xx;
> f.rawRead(xx);

In fact, you can read a struct/int this way too:

f.rawRead((&x)[0..1]);

-Steve
July 14, 2011
Gravatar of Graham FawcettPosted by Graham Fawcett
in reply to Steven Schveighoffer		Reply
Graham Fawcett
Gravatar of Graham Fawcett
Posted in reply to Steven Schveighoffer


Reply
On Thu, 14 Jul 2011 13:05:33 -0400, Steven Schveighoffer wrote:

> On Thu, 14 Jul 2011 09:36:47 -0400, Graham Fawcett <fawcett@uwindsor.ca> wrote:
> 
>> On Thu, 14 Jul 2011 09:01:29 +0000, hasnoth wrote:
>>
>>> auto file = io.File("test.txt", "rb");
>>>   auto fp = file.getFP();
>>>   int x;
>>>   io.fread(&x, x.sizeof, 1, fp);
>>>
>>>   what's the “d method” to do that?
>>
>> The same method:
>>
>> import core.stdc.stdio : fread;
>> fread(&x, x.sizeof, 1, fp);
>>
>> or, if you are using an array, you can use File.rawRead:
>>
>> int[10] xx;
>> f.rawRead(xx);
> 
> In fact, you can read a struct/int this way too:
> 
> f.rawRead((&x)[0..1]);
> 
> -Steve

Aha! that makes sense. Thanks, Steve.

Graham