1. Roland, can you not use a yellow background?
2. All the "real" computers are dead. Either you're bi-endian (PPC, ARM) or little endian (x86), or extinct.
3. Network byte order, and that the dumps put the bytes in the right order are the only arguement need to be made ;-). Otherwise you might as well redefine web hex colors to be BGRA "Ain't no body got time for that!"
Sent: Thursday, April 26, 2018 at 8:38 AM
From: "Roland Hughes" <[email protected]>
To: [email protected]
Subject: Re: [Interest] Interest Digest, Vol 79, Issue 20
From: "Roland Hughes" <[email protected]>
To: [email protected]
Subject: Re: [Interest] Interest Digest, Vol 79, Issue 20
On 04/26/2018 03:44 AM, Thiago Macieira wrote:
No. Taking a disposable chip's view of the world is short sighted and completely invalidates the historical reason for the class. It was created to feed real computers which operate in Big-Endian.On Wednesday, 25 April 2018 06:53:26 PDT Roland Hughes wrote:What I'm trying to tell you is there was and still is a legitimate reason to have a QDataStream which can write big-endian. Don't just rip it out. Make it some kind of settable boolean flag in the class. There is no way to know just how many of these things are still out there and are still being developed. Most were in the world of defense contractor/militaryI never claimed it isn't. In fact, there is a flag to set the endianness. When I said "most machines are little-endian", I was referring to machines Qt runs on and, therefore, would use QDataStream. The fact that the default is big endian is short-sighted. It should default to little-endian.
Read up on seismic testing or stuff happening with the Super Colliding Super Conductor. In the case of SCSC many thousands of disposable chip "sensors" running an application to pick up one or a few certain readings are streaming that stuff back to the only box which can handle them, big iron. IBM was never the fastest computationally, but when it comes to data throughput to/from disk they are a 14" city water main and their nearest competitor is happy the one day per week they achieve being a fire hose.
Here's a delightful little book about oil well drilling. I've read mine many times.
http://iliosresources.com/downloads/come-drill-a-well-in-my-backyard/
In today's world "Big Oil" uses satellites to identify "potential" places with oil reserves. For anything above water they then go through the long, arduous journey of getting permits to do seismic testing. Such testing involves drilling thousands of shot-holes (depending on the size of the potential reserve). Some have actual shots put in them with a blast sensor built using a disposable chip behind them to control/ensure/measure the blast. (Dry fires happen and the test analysis software has to be made aware of it.) A large percentage of these sensors will simply be lost, hence the need for disposable chips. They used to use Z-80, then for years INTEL x86 was the ultimate throw away chip. Now it is moving to ARM since you can get a Raspberry Pi for $15 or less when bought in 100 quantities.
Don't assume the class was created for use within the world of the disposable chip.
That particular class was designed so Qt on disposable chips could provide real computers an actual service.
Oh, here's a wee bit to add.
No company or person is allowed to _own_ seismic data. There is an industry standard format where binary data is big-endian. Upon request, for a nominal media and shipping fee, if you have it you have to provide it to whoever asks. Geologically and environmentally, we don't want 100+ companies drilling 1000+ shot-holes in the exact same county. What you are allowed to own is the analysis software you develop.
Do NOT change the default behavior of that class. It wasn't written for use on an iDiot Phone. It's design was and still is far reaching. Had it not existed, Qt would have had a dramatically shorter growth arc, possibly not surviving long enough to make it onto iDiot Phones. Changing the default behavior of the class would be viciously short sighted.
Sorry, I don't mean to sound insulting, but, in this particular case you are a grain of sand on the beach trying to remove the ocean because it gets you wet.
-- Roland Hughes, President Logikal Solutions (630)-205-1593 http://www.theminimumyouneedtoknow.com http://www.infiniteexposure.net http://www.johnsmith-book.com http://www.logikalblog.com http://www.interestingauthors.com/blog http://lesedi.us/ http://onedollarcontentstore.com_______________________________________________ Interest mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/interest
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