• seany (5/5) Jul 17 2014 Hello,
• Justin Whear (10/16) Jul 17 2014 You have a few options:
• H. S. Teoh via Digitalmars-d-learn (17/23) Jul 17 2014 Use File.rawWrite:
• seany (1/1) Jul 17 2014 Data is a built in type? what includefile do I need?
• Justin Whear (3/4) Jul 17 2014 No, just used as an example. What sort of data are reading from the
• H. S. Teoh via Digitalmars-d-learn (5/6) Jul 17 2014 It can be any type you want, it was just an example.
• Alexandre (4/9) Jul 18 2014 Maybe this can be usefull for u

"seany" <seany uni-bonn.de> writes:

Hello,

What are the methods of unformatted binary IO in d? File.write 
seems to use formatted ASCII . I would like to write a binary 
file that I cna read in fortan. Similarly, I would like to write 
a file in Fortan, unformatted IO, and read it using D.

Justin Whear <justin economicmodeling.com> writes:

On Thu, 17 Jul 2014 20:35:24 +0000, seany wrote:

 Hello,
 
 What are the methods of unformatted binary IO in d? File.write seems to
 use formatted ASCII . I would like to write a binary file that I cna
 read in fortan. Similarly, I would like to write a file in Fortan,
 unformatted IO, and read it using D.

You have a few options:
 * The old std.stream -- this module is due for replacement, hopefully 
ASAP.
 * Use File.rawRead/rawWrite.  These are intended for arrays, though they 
can be used to read single values.
 * Work with chunks of ubyte data and use std.bitmanip's read and write 
functions.

The last option is probably your best option for producing good future-
proof, idiomatic D code.

"H. S. Teoh via Digitalmars-d-learn" <digitalmars-d-learn puremagic.com> writes:

On Thu, Jul 17, 2014 at 08:35:24PM +0000, seany via Digitalmars-d-learn wrote:
 Hello,
 
 What are the methods of unformatted binary IO in d? File.write seems
 to use formatted ASCII . I would like to write a binary file that I
 cna read in fortan. Similarly, I would like to write a file in Fortan,
 unformatted IO, and read it using D.

Use File.rawWrite:

	auto f = File("myfile", "w");
	Data[] data = ... /* put data here */;
	f.rawWrite(data);

Similarly, to read binary data, use File.rawRead:

	auto f = File("myfile", "r");
	Data[] buf; /* buffer to store the data */
	buf.length = /* number of data items to read */;
	auto data = f.rawRead(buf);
	/* data will be a slice of buf, with .length containing the
	 * actual number of items read */

You can use ubyte[] if you have byte-based data to read/write, but
rawRead / rawWrite are flexible enough to take arrays of any type.


T

-- 
You are only young once, but you can stay immature indefinitely. -- azephrahel

"seany" <seany uni-bonn.de> writes:

Data is a built in type? what includefile do I need?

Justin Whear <justin economicmodeling.com> writes:

On Thu, 17 Jul 2014 21:01:35 +0000, seany wrote:

 Data is a built in type? what includefile do I need?

No, just used as an example.  What sort of data are reading from the 
binary file?

"H. S. Teoh via Digitalmars-d-learn" <digitalmars-d-learn puremagic.com> writes:

On Thu, Jul 17, 2014 at 09:01:35PM +0000, seany via Digitalmars-d-learn wrote:
 Data is a built in type? what includefile do I need?

It can be any type you want, it was just an example.


T

-- 
Chance favours the prepared mind. -- Louis Pasteur

"Alexandre" <alebencz gmail.com> writes:

Maybe this can be usefull for u

https://gist.github.com/bencz/3576dfc8a217a34c05a9

On Thursday, 17 July 2014 at 23:04:06 UTC, H. S. Teoh via 
Digitalmars-d-learn wrote:
 On Thu, Jul 17, 2014 at 09:01:35PM +0000, seany via 
 Digitalmars-d-learn wrote:
 Data is a built in type? what includefile do I need?

 It can be any type you want, it was just an example.


 T