The STL definitely can make your code run faster. For instance, the standard way to sort an array in C is with quicksort(), which requires a function pointer argument. This function is called for each comparison.
In C++, with the STL, you would use the sort() algorithm, which is inlined by the compiler. No function call. The resulting code can be an order of magnitude faster !
Read this report for some code and illustrations. The C++ code is easy to write and in their example still faster than a hand-designed sort routine.
Finally STL has little to do with OOP, but everything to do with *generic* programming.
If the iPad pans out the way they anticipate, it could replace a lot of what people use PCs for. They don't need new exciting totally different products every year. At the moment the iPad is not so interesting for me, but it could be in a few years once their capacity hit about 1TB and I can plug it into a monitor with decent resolution. Also if I can develop on it without a $99/year contract with Apple.
If anybody is listening, (serious) data entry into these things is a problem : no USB, no SD. Only a keyboard and wifi.
Einstein did help the atomic bomb by formulating some necessary theory on the equivalence between matter and energy in 1905, and in 1939 by writing a letter to president Roosevelt upon receiving information about what the Nazi state was up to coming from fellow Jewish physicists immigrants Szilar, Teller and Wigner. However he did not participate in the Manhattan project at all.
However, unless you are trying to build a nuclear bomb, which by grade 12 should still not be required material, Newton's theory of mechanics is more than sufficient to explain a great deal of natural phenomena, from the motion of ordinary items like cars and bicycles to those of planets revolving around the Sun.
Even the motion of ordinary bullets in a constant gravity field is going to be tough to explain without some references to Newton. What's the problem of the Texas education board with the guy anyway ?
You are so right. Even the Catholics embrace science. There is an astronomical observatory right in the Vatican, and one of the best science library in the world there. I think pope Paul VI in the 1970s said the Big Bang was the instant God created the Universe. I'm not claiming the Catholics necessarily have it right, but it does seem like these Texans want to be more Christian than the Pope.
Actually singing the "Happy Birthday" song to yourself or your loved ones is legal, even in public. In addition the IP associated with "Happy Birthday" has not been tested in court. The difference between the "Happy Birthday" and "Good Morning to You" score, which is in the public domain, is exactly one note (just sing "Good Morning to You" as you would "Happy Birthday" and there you have it).
Law is no more and no less than a system to resolve disputes. It has little to do with morality or justice, even though these are words that one hears often in connection with Law. Some Laws are unjust, some are immoral.
Yes, I agree, but how do we manage the funding issue? Give the same to everybody, and so reward the slackers? or give more to more productive teams, according to publication results, which is basically the only thing scientists produce? *Gettting* data requires a lot of effort and money, but does not guarantee any publication. *Analysing* the data can sometime be quickly and easily done and does guarantee publication if it is well done. So what do people who spend a lot of time, effort and money to get data? They hoard it, for the most part, even the data acquired through publicly funded studies, and they analyse it themselves and publish. Only once the data has been well and truly analysed to death does it become public, and even then after a long time. In many cases never, or only small portions of it.
Find a fair solution to this problem, go ahead! Another instance of pesky reality getting in the way of nice principles.
Your point is taken, but you are a bit off. To get the circumference of the Milky Way with meter accuracy, assuming 150kLY as the radius, you need 22 digits of Pi by my reckoning.
please check : 150.000 Y * (365*24*60*60) second * 300.000.000 m/s = 1.41912 e+21 m, and so the circumference of the MW is close do 10^22 m.
I seem to recall that to get the circumference of the visible universe to the precision of an Angstrom you need about 80 digits.
I have thought that one through. I would never purchase an Xbox for this reason, and I notice that you did not mention the PS3, on which Linux is (or was) installable.
Have you noticed that the toolchain used to compile anything on the iPhone is the GNU one? I would understand Apple restricting access to the AppStore to those who have paid the damn fee, but this in my mind abuse of the goodwill of the thousands of developers, without whom OS/X would just be yet another empty proprietary shell. For sure they would never have had me as a customer and developer.
The iPhone and iPad has a lot more potential than a haven for untold copies fart apps, however, serious work on this device like scientific and medical imaging apps requires cooperation, which the Apple model actively discourages.
Even worse, the iphone is so proprietary that one cannot even run one's code on one's own device unless one pays the $99 developer extortion fee to Apple!!!
They also use and support free software. Google has made a ton of money *from* free software. They have shown it is possible to grow from a garage operation to one of the most influential company on the planet using Linux. They have shown free software can be relied on to deliver stuff people want and that you don't necessarily have to hand out bushels of money to Sun, HP, Microsoft, Apple et al to make money in the IT industry.
The difference is very relevant. I don't think there is a nice way to pack the kind of information that exists in a NIB file using C++ as a development language. Certainly none of the Microsoft, Gnome or KDE designers have done it. You basically have to specify all the callbacks by hand somehow in the interface file in C++, and compile the interface in. Compare this with the NIB+objective C way. The NIB file contains your whole interface, you can change almost everything about the appearance of your application, and you don't have to recompile at all.
So in theory you are right, in practice, objective-C works well in its context, better than C++.
My wife owns a MBP produced in 2006 (very first generation with *the whine*), battery replaced twice as well, not doing too well with the last one. I also own a MBP produced in 2008, first generation unibody, original battery has (check) 227 cycles, 97% health. I think it's the heat. The 2006 MBP is hot as hell.
Very good point. Even though this sounds extremely unlikely, the Slashdot readership is more than able to make their way through life without too much help, but this is not the case of the general population.
Can't we use a smallish SSD acting as cache in front of a large spinning disk? This is old technology, that may need to be modified somewhat to take the particulars of SSDs into account, but surely this is feasible? Any reason why not?
Now how do we communicate the other way ? Like from the laptop back to the router ? How do I twiddle the house lights from there. Inquiring minds want to know.
BTW what kind of light sensor did they use ? Cheap hopefully.
Slashdot Mirror
Any free game developer on the app store still nets Apple $99 a year. Not so bad after all.
Adobe dropping mac support together with about 30% of their CS customers ? how likely is that ?
Precisely, non-C !
Here they are talking about finally using something else *than C* to continue development of GCC.
The STL definitely can make your code run faster. For instance, the standard way to sort an array in C is with quicksort(), which requires a function pointer argument. This function is called for each comparison.
In C++, with the STL, you would use the sort() algorithm, which is inlined by the compiler. No function call. The resulting code can be an order of magnitude faster !
Read this report for some code and illustrations. The C++ code is easy to write and in their example still faster than a hand-designed sort routine.
Finally STL has little to do with OOP, but everything to do with *generic* programming.
Given sufficiently difficult situations, many people can be driven to suicide. Would you like to try the sweatshop lifestyle ?
If the iPad pans out the way they anticipate, it could replace a lot of what people use PCs for. They don't need new exciting totally different products every year. At the moment the iPad is not so interesting for me, but it could be in a few years once their capacity hit about 1TB and I can plug it into a monitor with decent resolution. Also if I can develop on it without a $99/year contract with Apple.
If anybody is listening, (serious) data entry into these things is a problem : no USB, no SD. Only a keyboard and wifi.
Einstein did help the atomic bomb by formulating some necessary theory on the equivalence between matter and energy in 1905, and in 1939 by writing a letter to president Roosevelt upon receiving information about what the Nazi state was up to coming from fellow Jewish physicists immigrants Szilar, Teller and Wigner. However he did not participate in the Manhattan project at all.
However, unless you are trying to build a nuclear bomb, which by grade 12 should still not be required material, Newton's theory of mechanics is more than sufficient to explain a great deal of natural phenomena, from the motion of ordinary items like cars and bicycles to those of planets revolving around the Sun.
Even the motion of ordinary bullets in a constant gravity field is going to be tough to explain without some references to Newton. What's the problem of the Texas education board with the guy anyway ?
You are so right. Even the Catholics embrace science. There is an astronomical observatory right in the Vatican, and one of the best science library in the world there. I think pope Paul VI in the 1970s said the Big Bang was the instant God created the Universe. I'm not claiming the Catholics necessarily have it right, but it does seem like these Texans want to be more Christian than the Pope.
Who is going to be her employer? Some foreign company like Siemens perhaps?
Actually singing the "Happy Birthday" song to yourself or your loved ones is legal, even in public. In addition the IP associated with "Happy Birthday" has not been tested in court. The difference between the "Happy Birthday" and "Good Morning to You" score, which is in the public domain, is exactly one note (just sing "Good Morning to You" as you would "Happy Birthday" and there you have it).
Law is no more and no less than a system to resolve disputes. It has little to do with morality or justice, even though these are words that one hears often in connection with Law. Some Laws are unjust, some are immoral.
Yes, I agree, but how do we manage the funding issue? Give the same to everybody, and so reward the slackers? or give more to more productive teams, according to publication results, which is basically the only thing scientists produce? *Gettting* data requires a lot of effort and money, but does not guarantee any publication. *Analysing* the data can sometime be quickly and easily done and does guarantee publication if it is well done. So what do people who spend a lot of time, effort and money to get data? They hoard it, for the most part, even the data acquired through publicly funded studies, and they analyse it themselves and publish. Only once the data has been well and truly analysed to death does it become public, and even then after a long time. In many cases never, or only small portions of it.
Find a fair solution to this problem, go ahead! Another instance of pesky reality getting in the way of nice principles.
Your point is taken, but you are a bit off. To get the circumference of the Milky Way with meter accuracy, assuming 150kLY as the radius, you need 22 digits of Pi by my reckoning.
please check : 150.000 Y * (365*24*60*60) second * 300.000.000 m/s = 1.41912 e+21 m, and so the circumference of the MW is close do 10^22 m.
I seem to recall that to get the circumference of the visible universe to the precision of an Angstrom you need about 80 digits.
I have thought that one through. I would never purchase an Xbox for this reason, and I notice that you did not mention the PS3, on which Linux is (or was) installable.
Have you noticed that the toolchain used to compile anything on the iPhone is the GNU one? I would understand Apple restricting access to the AppStore to those who have paid the damn fee, but this in my mind abuse of the goodwill of the thousands of developers, without whom OS/X would just be yet another empty proprietary shell. For sure they would never have had me as a customer and developer.
The iPhone and iPad has a lot more potential than a haven for untold copies fart apps, however, serious work on this device like scientific and medical imaging apps requires cooperation, which the Apple model actively discourages.
This is when we realize that the decades of work put into GCC are going to be tough to redo in less than a few decades.
Even worse, the iphone is so proprietary that one cannot even run one's code on one's own device unless one pays the $99 developer extortion fee to Apple!!!
They also use and support free software. Google has made a ton of money *from* free software. They have shown it is possible to grow from a garage operation to one of the most influential company on the planet using Linux. They have shown free software can be relied on to deliver stuff people want and that you don't necessarily have to hand out bushels of money to Sun, HP, Microsoft, Apple et al to make money in the IT industry.
The difference is very relevant. I don't think there is a nice way to pack the kind of information that exists in a NIB file using C++ as a development language. Certainly none of the Microsoft, Gnome or KDE designers have done it. You basically have to specify all the callbacks by hand somehow in the interface file in C++, and compile the interface in. Compare this with the NIB+objective C way. The NIB file contains your whole interface, you can change almost everything about the appearance of your application, and you don't have to recompile at all.
So in theory you are right, in practice, objective-C works well in its context, better than C++.
Actually the glassy ash will melt in the jet engine and quickly accumulate to the point where the engine stops working.
My wife owns a MBP produced in 2006 (very first generation with *the whine*), battery replaced twice as well, not doing too well with the last one.
I also own a MBP produced in 2008, first generation unibody, original battery has (check) 227 cycles, 97% health. I think it's the heat. The 2006 MBP is hot as hell.
OS/X is already largely unshackled, look around. It's nice to run it on one's hardware of choice, and not just desktops.
When Jobs goes, however a douchebag he may be, Apple is finished, if past history is any indication.
I know, nothing new in here.
Very good point. Even though this sounds extremely unlikely, the Slashdot readership is more than able to make their way through life without too much help, but this is not the case of the general population.
Can't we use a smallish SSD acting as cache in front of a large spinning disk? This is old technology, that may need to be modified somewhat to take the particulars of SSDs into account, but surely this is feasible? Any reason why not?
Now how do we communicate the other way ? Like from the laptop back to the router ? How do I twiddle the house lights from there. Inquiring minds want to know.
BTW what kind of light sensor did they use ? Cheap hopefully.
Excellent, thanks. Although things are funnier at 3:00am sometime, so anyway I'm told.