Right, but surely Clearcase would have the same problems as ccache in getting the right debug source path in the object file. It's a gcc bug (fixed in 3.4, i think) and neither ccache nor Clearcase can fix or avoid it.
SCons ships in a few distros, though it's not on other Unixes. On the other hand, it is a single Python file which you can just copy into the source directory, and which only requires Python 1.5. Doing that is in fact less hassle than trying to get libtool, automake, and autoconf to work on different platforms, and it can replace all of them.
I've merged projects into Clearcase and converted them to Scons and I have to say Scons was less trouble and more rewarding. YMMV of course.
I'm not sure tying build-avoidance into the kernel and the SCM system is really the best way to do it. It does give you automagic dependencies, but at a price -- last time I used Clearcase we had to run a buggy two-year-old kernel because that was the last one Rational supported.
ccache and SCons give you build-avoidance too, without slowing things down or making everyone depend on a central server.
If you wanted to use Arch, but it's too complex, then you should try darcs. It has fully-distributed operation, but you can get up and running in much less time. Commands have a closer resemblence to what you're used to in Subversion or CVS: "darcs record", "darcs revert", "darcs diff", etc.
The best thing about darcs is that every operation is local by default. Subversion does diffs locally; darcs does everything locally. You only need to wait on the network when you want to get something not on your machine, or when you want to share your work with others. Arch can be made to work this way, but it requires a bit of setup and a lot of understanding of advanced concepts: mirrored archives, revision libraries, etc. With darcs, fast is the default.
The main downside is that it's still pre-1.0, and so a bit less stable and documented than Subversion, though still reasonably good.
I'm pretty sure that falls under "evil", and they wouldn't do it.
But really: would it be so bad? Any web site that you can't find either through Google or clicking from somewhere else is likely to be so badly organized as to be barely worth reading. And as Raph says, Google response times are very competitive with DNS.
OK, obviously web developers need to be able to enter URLs, and intranets need special handling. But beyond that...
In fact, that's a pretty good idea. I'm going to disable the Location bar and see how I go using only Google.
He's not triggering on any invalid serial number, as you might get from a typo. He's triggering on particular numbers known to be pirated. You're not likely to type a particular 20-digit code by accident.
I don't know if Vesta is much of a contender. It looks like it's hard to adopt for projects that are not totally prepared to buy into its way of doing everything.
A more interesting new open project is Darcs: much simpler than BitKeeper or Arch, but nearly as powerful (at least for small-medium projects.)
It's very unclear what is on-topic for Slashdot, if anything. Merely sending an announcement a couple of days after Spolsky, Cringely or Graham writes something seems a bit of a waste. (I suppose slashdot provides a central discussion board.) own.
If this is 'news for nerds', and nerds are shaped by their highschool experience, then discussing school is probably news.
Personally I find "$company releases marginally-improved product" stories pretty boring, but each to their own.
You can't do anything useful in two hours? I think if you're a good programmer, it ought to be possible.
Doing programming exams on paper is pretty pointless, but that's a separate problem. Do them in a computer lab. Some examiners might want to cut off net access.
What could you do?
- here's a small problem. write a solution.
- here's a mid-size program. find the bug in it.
- here's a large program. add a new feature.
- here's a large problem. write a design document on how you'd solve it.
Now certainly assignments during the term can be useful to give feedback, and they're good for that reason. But giving them more weight than say 20% is just a bonus for cheaters.
If universities are concerned about cheating, they should give more weight to exams, where it is harder to cheat.
Exams alone put too much weight on memorization and performance under pressure, rather than research and long-term thought.
Therefore, tell people ahead of time what the broad area is, though not the specific topic. Let them bring in a few pages of notes, but those notes have to be submitted with the exam.
It depends on whether you take the English proper noun "God" to mean the judeo-christian "Yahweh", or just a monotheistic deity in general. It is hard to discuss because the different systems are mutually contradictory.
In common usage "God" refers to the christian god, and therefore didn't exist before the Olympics.
Of course some people would say a god can exist even before anyone believes in him. I prefer to follow the theory in Small Gods: belief makes a god exist.
God knows there was no Olympics before there was capitalism.
There were Olympics before there was God. Indeed, the dominance of Christianity was one of the factors leading to the downfall of the Ancient Olympics.
My previous post said that PoE (in one mode) creates a DC potential between the rx and tx lines. This is done by applying DC to the isolation transformers. The two statements are entirely consistent.
you can just modify a client and make it draw power from the hub/switch/jack.
Can you? That's what I was originally asking. I don't think you can get much power that way. But anyhow, that's not how PoE works; it requries a modified hub/switch, or at least a separate unit to supply the DC voltage.
I realize that standard ethernet doesn't have a VCC line. But you can be more creative: since data is transmitted by a modulated signal, you can use a DC potential between the two pairs to transmit power, or you can use the two spare pairs that are unused by most installations.
802.3af requires upgraded equipment which is currently rare. Therefore my question: how much load can you put on the rx pair without degrading the signal or hurting the other machine? Probably not very much, but more than zero. Not enough, I suppose, to run a Wifi emitter.
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Right, but surely Clearcase would have the same problems as ccache in getting the right debug source path in the object file. It's a gcc bug (fixed in 3.4, i think) and neither ccache nor Clearcase can fix or avoid it.
SCons ships in a few distros, though it's not on other Unixes. On the other hand, it is a single Python file which you can just copy into the source directory, and which only requires Python 1.5. Doing that is in fact less hassle than trying to get libtool, automake, and autoconf to work on different platforms, and it can replace all of them.
I've merged projects into Clearcase and converted them to Scons and I have to say Scons was less trouble and more rewarding. YMMV of course.
I'm not sure tying build-avoidance into the kernel and the SCM system is really the best way to do it. It does give you automagic dependencies, but at a price -- last time I used Clearcase we had to run a buggy two-year-old kernel because that was the last one Rational supported.
ccache and SCons give you build-avoidance too, without slowing things down or making everyone depend on a central server.
Strange as it may seem, some programmers care about using the right word in the right place.
If you wanted to use Arch, but it's too complex, then you should try darcs. It has fully-distributed operation, but you can get up and running in much less time. Commands have a closer resemblence to what you're used to in Subversion or CVS: "darcs record", "darcs revert", "darcs diff", etc.
The best thing about darcs is that every operation is local by default. Subversion does diffs locally; darcs does everything locally. You only need to wait on the network when you want to get something not on your machine, or when you want to share your work with others. Arch can be made to work this way, but it requires a bit of setup and a lot of understanding of advanced concepts: mirrored archives, revision libraries, etc. With darcs, fast is the default.
The main downside is that it's still pre-1.0, and so a bit less stable and documented than Subversion, though still reasonably good.
I'm pretty sure that falls under "evil", and they wouldn't do it.
But really: would it be so bad? Any web site that you can't find either through Google or clicking from somewhere else is likely to be so badly organized as to be barely worth reading. And as Raph says, Google response times are very competitive with DNS.
OK, obviously web developers need to be able to enter URLs, and intranets need special handling. But beyond that...
In fact, that's a pretty good idea. I'm going to disable the Location bar and see how I go using only Google.
And not only that, but they've hired Dan Kegel. Do a search for "kegel" and see what you find...
When the manual said that "Congratulations on your purchase. This will give you a lifetime of enjoyment".
Ah yes. Want to buy a bomb-disposal kit with a lifetime guarantee?
He's not triggering on any invalid serial number, as you might get from a typo. He's triggering on particular numbers known to be pirated. You're not likely to type a particular 20-digit code by accident.
(Or so the story leads me to believe.)
I don't know if Vesta is much of a contender. It looks like it's hard to adopt for projects that are not totally prepared to buy into its way of doing everything.
A more interesting new open project is Darcs: much simpler than BitKeeper or Arch, but nearly as powerful (at least for small-medium projects.)
It was Xerox, not HP. Read your history.
HP might well have been doing the same, but it happened to be a Xerox printer in that case. But now they have lovely open source^W^Wfree inkjet drivers.
samba, rsync, ccache and much much more, but no babies as far as I know. He does have a puppy.
It's very unclear what is on-topic for Slashdot, if anything. Merely sending an announcement a couple of days after Spolsky, Cringely or Graham writes something seems a bit of a waste. (I suppose slashdot provides a central discussion board.)
own.
If this is 'news for nerds', and nerds are shaped by their highschool experience, then discussing school is probably news.
Personally I find "$company releases marginally-improved product" stories pretty boring, but each to their own.
Can you think of any other mandatory high school course that was less geek friendly than 'English'?
Physical Education?
If you swith back and forth really quickly, you sound like you have a lithp.
Oh, OK. Sorry I misread it.
Making people program on paper is pretty lame.
You can't do anything useful in two hours? I think if you're a good programmer, it ought to be possible.
Doing programming exams on paper is pretty pointless, but that's a separate problem. Do them in a computer lab. Some examiners might want to cut off net access.
What could you do?
- here's a small problem. write a solution.
- here's a mid-size program. find the bug in it.
- here's a large program. add a new feature.
- here's a large problem. write a design document on how you'd solve it.
Now certainly assignments during the term can be useful to give feedback, and they're good for that reason. But giving them more weight than say 20% is just a bonus for cheaters.
If universities are concerned about cheating, they should give more weight to exams, where it is harder to cheat.
Exams alone put too much weight on memorization and performance under pressure, rather than research and long-term thought.
Therefore, tell people ahead of time what the broad area is, though not the specific topic. Let them bring in a few pages of notes, but those notes have to be submitted with the exam.
Does anyone know if this is because of C++ or is it the GNU C++ compiler?
It's both.
I suggest you read the book and get back to me. The theory is developed quite nicely, including an answer to your question.
A character animation system, [...] meshes, deformers, bones, physics, rendering, etc. It gets pretty messy
Sounds messy. Have you seen what a bone deformer can do to a toon?
It depends on whether you take the English proper noun "God" to mean the judeo-christian "Yahweh", or just a monotheistic deity in general. It is hard to discuss because the different systems are mutually contradictory.
In common usage "God" refers to the christian god, and therefore didn't exist before the Olympics.
Of course some people would say a god can exist even before anyone believes in him. I prefer to follow the theory in Small Gods: belief makes a god exist.
God knows there was no Olympics before there was capitalism.
There were Olympics before there was God. Indeed, the dominance of Christianity was one of the factors leading to the downfall of the Ancient Olympics.
My previous post said that PoE (in one mode) creates a DC potential between the rx and tx lines. This is done by applying DC to the isolation transformers. The two statements are entirely consistent.
you can just modify a client and make it draw power from the hub/switch/jack.
Can you? That's what I was originally asking. I don't think you can get much power that way. But anyhow, that's not how PoE works; it requries a modified hub/switch, or at least a separate unit to supply the DC voltage.
I realize that standard ethernet doesn't have a VCC line. But you can be more creative: since data is transmitted by a modulated signal, you can use a DC potential between the two pairs to transmit power, or you can use the two spare pairs that are unused by most installations.
See this diagram.
802.3af requires upgraded equipment which is currently rare. Therefore my question: how much load can you put on the rx pair without degrading the signal or hurting the other machine? Probably not very much, but more than zero. Not enough, I suppose, to run a Wifi emitter.
would be an ethernet-powered access-point: just one plug for an Ethernet port, and it bridges and/or NATs onto that connection.
I don't know how much power you can safely draw over Ethernet. Maybe it's not enough. But it would be cool if it worked.