I had the exact opposite experience with T-Mobile, crappy service, terrible coverage, and worthless customer support... Even had trouble with them trying to charge me the month after I transferred my phone off their network.
But that was two years ago, maybe they've improved since... But I'm not willing to go back.
Because kdawson is still an editor here, so you've got a better chance of getting your post of an inflammatory interpretation by a talking head on the front page than the actual original material...
No, it doesn't. If ++ works, I assume x=x+1 will work. I also assume x=x+100 will work (it may overflow, but it should work). Neither of these are true for the entire class of iterators.
x=x+1 should work for STL compliant iterators. In cases where it won't work, it will at least give a compile time error informing you it doesn't. What doesn't work is x = x + x, but that won't work for pointers, either.
Postincrement vs preincrement is an example. So is the STL above. Another is string concatenation, where the + operator loses the commutative property when used for concat (a+b != b+a).
Postincrement vs preincrement already aren't 1:1, so I'm not sure I understand your point. Commutative "mathematical" operations are already not commutative "C/C++" operations in certain cases (+ and * for floats and doubles aren't always commutative). But operator+ in C++ isn't "mathematical addition", it's operator+. There's no requirement to be bound by how things work in mathematics. If I have a class Ellipse and a class Circle, mathematically a Circle is an Ellipse but in C++ that sort of inheritance probably break the interface for Ellipse. We could argue all day about why things should behave like their mathematical equivalents, but there's no requirement that they should be required to. Just don't surprise your users... I really can't believe that someone, on finding out that + performs string concatenation, had as their first thought in response "But that's not commutative!" If so, they weren't probably trying to get any real work done in the first place.
Even = can be problematic. Is it doing a shallow or deep copy (or even COW- although that should be transparent it does make for a performance difference)? There's no way to know without digging through the code, and the difference can matter greatly.
If it matters for your application, read the documentation. If it doesn't matter, happily use = obliviously.
That's why function names are better than operators- they're explicit.
The existence of overloaded operators does not prevent the implementation of explicit function calls for the same operations. Function names aren't automatically "better" than operators, especially since they're not automatically explicit. clone() in Java, for instance, performs a shallow copy... Except when it doesn't...:) And the Java guys in this shop would probably strangle someone if we made them type.cloneDeepCopy() or.cloneShallowCopy() every time.:)
With operators you tend to assume that it's doing exactly what the basic type version does, which just gives rise to hard to find bugs.
Actually in the STL I'd argue conceptually it does work the same as it does on native types. Incrementing an iterator is supposed to "feel" like incrementing a pointer. Iterators can be implemented as pointers, after all. There's just no guarantee they ARE pointers.
I still don't understand this "operator overloading is t3h devil" attitude from so many people (especially Java programmers). Yes, you can use it to cause your objects to do non-intuitive things (like mapping * to division) but almost ANY language feature can be abused by a programmer to cause similar stupidity. The problem is the person writing the code, not anything inherently wrong with operator overloading. It's nice to have the ability to add expressiveness in a concise way to your objects, in my opinion, and I think I'd have gone nuts without ways to overload assignment, copying, and dereference...
Actually he said they didn't have a right to just decide by themselves to violate another nation's sovereignty. We at least make a show of getting "permission" before we do it.
Even the US Secretary of State agreed they had a right to do SOMETHING to protect their "peacekeepers" that were in harm's way, what they didn't have a right to do was enter Georgia's territory outside of South Ossetia or start annexing Georgian provinces...
This isn't how we do things here, rounding people up for political reasons ahead of time like Russia or how we hated China for before the Olympics. Let them protest and make complete asses of themselves and show everyone how ridiculous and consumed with vitriol they are.
Then let those that disagree fight it out in the streets. That's the American way.
"The fed" - that is, your federal government - has agencies that are specifically designed to work quickly and effectively and do so.
You and I must be thinking of a completely different Federal Government. I'd make a joke about the only agency being efficient and effective being IRS Collections, but I did taxes for a year so I know that's not the case either.
FEMA worked quite effectively in previous disaster situations.
Really? Can you name one case where they did? I was a bit young to remember most of them, but I remember how badly they handled Hurricane Andrew because I was in that Hurricane and was shocked at how bad the people in Florida had it.
As I've posted in other spots, I was actually working in the government in Louisiana about two hours west of New Orleans when this all went down. In the aftermath of the storm, with people sitting on their rooftops waiting for rescue, a lawyer in Lafayette, LA put together a group of about 150 private small boats to caravan to New Orleans and volunteer to pull people off roofs. When they got near the city, officials from Wildlife and Fisheries told them "Oh we don't need help, go home." and made them return home. The lawyer and another boat snuck back into the city via an alternate route and launched their boats from an off-ramp. They started rescuing people from hospitals and rooftops, with the people they were rescuing wondering aloud why they were the only two boats they'd seen... Eventually they kinda got "commandeered" with armed security personnel onboard protecting them as they evacuated people from one of the hospitals. The people working inside the city were happy for the help and desperate for more, but the state officials outside of the city were still turning people away.
This sort of stuff was rampant during the entire ordeal: volunteers turned away, rescue workers commandeered by state officials for their own personal use, local officials taking first pick of relief supplies, local officials lying about their situation on national news programs to generate sympathy, etc.
I find the mental block people have astounding, it's like FEMA did no wrong before 2005 and suddenly people were stunned by their shocking ineptitude.
You'd be hard pressed to find a single example of a disaster they handled WELL pre-Katrina, so I don't understand why their performance during Katrina was so surprising. If anything (as I keep pointing out) they responded FASTER to Katrina than Andrew.
The difference was all the previous disasters didn't happen in Louisiana, so their ineptitude was outshined by the stunning work of local officials...
bly assisted by Dubbyah making FEMA a sub-agency of DHS, which appears to be the most incompetent agency in existence - a title that takes some doing, I know. As soon as you make emergency managers part of a body that's all about finding "t3h terrists", you change its focus and direction.
Actually FEMA has always suffered from "feature bloat," as any problem that Congress didn't want to deal with was randomly assigned to the agency. Its original purpose was actually to deal with civil defense against the Communists (the 'terrorists' of our parents' days), so it being subservient to DHS is actually closer to its original mission than what it's been tasked with lately.
Whether or not FEMA was a charlie foxtrot before 11/9 is a point for argument, I'm sure, but since being subsumed into DHS it's been an unstoppable toboggan ride into the abyss of bureaucratic hell.
Honestly FEMA was even more incompetent before 9/11 than it was during Katrina. The response to Hurricane Andrew was even worse, and even slower, and every other disaster they tried to help with in the nineties was exactly that, a disaster. The difference in those cases was there were State and Local officials actually trying to do something in the meantime, instead of sitting around shouting expletives and crying. Really, the difference was that those disasters didn't happen in Louisiana.
If you want to see how emergency management should be run, look to the Coasties. They saved 33.5k people after Katrina, and they have fewer than 40k staff! They don't insist on kicking decisions about the colour of Post-It notes up to national command level, which means they're agile and can respond quickly. Local commanders have authority to make decisions, and that's that.
And there is the entire problem with your "FEMA is bollocks" argument. Rescuing people is the job of the Coast Guard, State, and Local Officials. They have the agility and the manpower to accomplish that. FEMA's job is to support them by providing them whatever resources they request. The problem is, our glorious governor didn't actually request any help. She just assumed they would take care of it. She also apparently forgot that the state's National Guard is under her command, not theirs. There's nothing FEMA could have done to change what happened in Louisiana short of deposed the State government.
Funnily enough, I happened to be in Louisiana during Katrina and happened to be working for the government at the time. A small portion (like 25%) of our state's national guard was in the process of standing down from Iraq when Katrina hit, and they were actually rotated into the city during the aftermath because our governor wanted to try and save face and look tough by deploying "combat hardened troops" that will "shoot to kill." One of the main Reserve bases in Louisiana, funnily enough, is IN New Orleans and the other 75% of our National Guard was sitting on their asses waiting for orders, as they were under control of the state government, not the federal government. Bush moving in and federalizing those troops would have been seen as a huge violation of states rights and an assurpation of power, as essentially the only legal basis he could have used for it would have been to declare the state of Louisiana to be rebelling and essentially removed the state government from power. In hindsight, that probably would have been a better option.
FEMA, funnily enough, responded more quickly to Katrina in New Orleans than they did to Andrew in Homestead, FL. The cynic in me would say that's because of the demographic differences between the two locations, but such baseless theorycrafting serves no one. FEMA (and pretty much any federal disaster relief agency) is in fact paralyzed without local and state government support and cooperation, as their primary role is organization and logistics; ie: figuring out who needs what and seeing that they get it. They need state and local governments (like the national guard, state police, etc.) to provide the actual manpower to accomplish anything, and in the case of Katrina our lovely (and unsurprisingly deposed) governor just sat around and dithered while people died. She even admitted herself (not realizing that the cameras were on) that she should have sent the guard in earlier and when the president offered to take over for her (since she was obviously in over her head) she told him she'd think about it and get back to him in 24 hours.
But of course, it's obviously Bush's fault, he's such a big meanie that Blanco was too scared to call and ask for help...
I spent well on five years being the lone voice in the wilderness at the Lafayette City/Parish Government, slowly spreading OSS... Sadly I had dozens of users using OSS at their homes (especially Linux LiveCDs and OO.o) but they weren't allowed the option of using it at work by policy...
Shut up.Most people actually do know there 'tax load'.
Having done income taxes a while for a living I can say from personal experience that 50% of Americans have no idea whatsoever what their tax burden is (because they don't care) and another 25% or so think they understand it but are mistaken. Most of the rest are small business owners, and they do write a check for their taxes every time they get a "paycheck".
Yes, Exxon got 9% of that 114 billion. But what percentage did the Federal government get? And we should tax them MORE?
People in fact do not understand it costs money to have services, as to the average person "The Government" comes out of the same magic fountain as "Health Insurance," "Car Insurance," and "The Lottery."
Sounds good to me. I always thought it was moronic that some of the brightest guys I worked with in graduate school were going to be forced to go back to India and make nothing, taking all the knowledge they have generated and will generate with them, instead of letting them enrich our workforce. If nothing else, it'd be a lot easier to work with offshore developers if they spent a couple years working in the US with a team of good developers.
And then at the same time I'm being told I should have compassion and allow a bunch of criminals to stay in the US while my buddy's family mortgages their house to put him through a US school and he risks having his visa revoked for looking at someone crosseyed. Yeah, that's fair.
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I had the exact opposite experience with T-Mobile, crappy service, terrible coverage, and worthless customer support... Even had trouble with them trying to charge me the month after I transferred my phone off their network.
But that was two years ago, maybe they've improved since... But I'm not willing to go back.
I wanted to go the US many years ago, visit New Orleans (pre-Katrina) and soak up the local culture.
Then our border guards have done you a favor by preventing you from "soaking up" anything in that abysmal cesspool...
Why anyone would travel thousands of miles to New Orleans purely for the sake of visiting New Orleans is beyond me...
Because kdawson is still an editor here, so you've got a better chance of getting your post of an inflammatory interpretation by a talking head on the front page than the actual original material...
Except that if you read the article, you'd realize you're wrong. :P
x=x+1 should work for STL compliant iterators. In cases where it won't work, it will at least give a compile time error informing you it doesn't. What doesn't work is x = x + x, but that won't work for pointers, either.
Postincrement vs preincrement already aren't 1:1, so I'm not sure I understand your point. Commutative "mathematical" operations are already not commutative "C/C++" operations in certain cases (+ and * for floats and doubles aren't always commutative). But operator+ in C++ isn't "mathematical addition", it's operator+. There's no requirement to be bound by how things work in mathematics. If I have a class Ellipse and a class Circle, mathematically a Circle is an Ellipse but in C++ that sort of inheritance probably break the interface for Ellipse. We could argue all day about why things should behave like their mathematical equivalents, but there's no requirement that they should be required to. Just don't surprise your users... I really can't believe that someone, on finding out that + performs string concatenation, had as their first thought in response "But that's not commutative!" If so, they weren't probably trying to get any real work done in the first place.
If it matters for your application, read the documentation. If it doesn't matter, happily use = obliviously.
The existence of overloaded operators does not prevent the implementation of explicit function calls for the same operations. Function names aren't automatically "better" than operators, especially since they're not automatically explicit. clone() in Java, for instance, performs a shallow copy... Except when it doesn't... :) And the Java guys in this shop would probably strangle someone if we made them type .cloneDeepCopy() or .cloneShallowCopy() every time. :)
Well then maybe you shouldn't assume that. :)
I think you have a fundamental misunderstanding of what's going on, as you're assuming i is an integer type.
Actually in the STL I'd argue conceptually it does work the same as it does on native types. Incrementing an iterator is supposed to "feel" like incrementing a pointer. Iterators can be implemented as pointers, after all. There's just no guarantee they ARE pointers.
I still don't understand this "operator overloading is t3h devil" attitude from so many people (especially Java programmers). Yes, you can use it to cause your objects to do non-intuitive things (like mapping * to division) but almost ANY language feature can be abused by a programmer to cause similar stupidity. The problem is the person writing the code, not anything inherently wrong with operator overloading. It's nice to have the ability to add expressiveness in a concise way to your objects, in my opinion, and I think I'd have gone nuts without ways to overload assignment, copying, and dereference...
Except that operator++ is used for more than just integer increment...
Actually he said they didn't have a right to just decide by themselves to violate another nation's sovereignty. We at least make a show of getting "permission" before we do it.
Even the US Secretary of State agreed they had a right to do SOMETHING to protect their "peacekeepers" that were in harm's way, what they didn't have a right to do was enter Georgia's territory outside of South Ossetia or start annexing Georgian provinces...
Was planning on taking Dad there for his 50th Birthday in 2011. Drag.
http://science.slashdot.org/comments.pl?sid=949249&threshold=0&commentsort=0&mode=thread&pid=24822665#24825301
You're late to the party.
This isn't how we do things here, rounding people up for political reasons ahead of time like Russia or how we hated China for before the Olympics. Let them protest and make complete asses of themselves and show everyone how ridiculous and consumed with vitriol they are.
Then let those that disagree fight it out in the streets. That's the American way.
FISTICUFFS!
You and I must be thinking of a completely different Federal Government. I'd make a joke about the only agency being efficient and effective being IRS Collections, but I did taxes for a year so I know that's not the case either.
Really? Can you name one case where they did? I was a bit young to remember most of them, but I remember how badly they handled Hurricane Andrew because I was in that Hurricane and was shocked at how bad the people in Florida had it.
As I've posted in other spots, I was actually working in the government in Louisiana about two hours west of New Orleans when this all went down. In the aftermath of the storm, with people sitting on their rooftops waiting for rescue, a lawyer in Lafayette, LA put together a group of about 150 private small boats to caravan to New Orleans and volunteer to pull people off roofs. When they got near the city, officials from Wildlife and Fisheries told them "Oh we don't need help, go home." and made them return home. The lawyer and another boat snuck back into the city via an alternate route and launched their boats from an off-ramp. They started rescuing people from hospitals and rooftops, with the people they were rescuing wondering aloud why they were the only two boats they'd seen... Eventually they kinda got "commandeered" with armed security personnel onboard protecting them as they evacuated people from one of the hospitals. The people working inside the city were happy for the help and desperate for more, but the state officials outside of the city were still turning people away.
This sort of stuff was rampant during the entire ordeal: volunteers turned away, rescue workers commandeered by state officials for their own personal use, local officials taking first pick of relief supplies, local officials lying about their situation on national news programs to generate sympathy, etc.
So you mean now they know the truth? :)
I find the mental block people have astounding, it's like FEMA did no wrong before 2005 and suddenly people were stunned by their shocking ineptitude.
You'd be hard pressed to find a single example of a disaster they handled WELL pre-Katrina, so I don't understand why their performance during Katrina was so surprising. If anything (as I keep pointing out) they responded FASTER to Katrina than Andrew.
The difference was all the previous disasters didn't happen in Louisiana, so their ineptitude was outshined by the stunning work of local officials...
Actually FEMA has always suffered from "feature bloat," as any problem that Congress didn't want to deal with was randomly assigned to the agency. Its original purpose was actually to deal with civil defense against the Communists (the 'terrorists' of our parents' days), so it being subservient to DHS is actually closer to its original mission than what it's been tasked with lately.
Honestly FEMA was even more incompetent before 9/11 than it was during Katrina. The response to Hurricane Andrew was even worse, and even slower, and every other disaster they tried to help with in the nineties was exactly that, a disaster. The difference in those cases was there were State and Local officials actually trying to do something in the meantime, instead of sitting around shouting expletives and crying. Really, the difference was that those disasters didn't happen in Louisiana.
And there is the entire problem with your "FEMA is bollocks" argument. Rescuing people is the job of the Coast Guard, State, and Local Officials. They have the agility and the manpower to accomplish that. FEMA's job is to support them by providing them whatever resources they request. The problem is, our glorious governor didn't actually request any help. She just assumed they would take care of it. She also apparently forgot that the state's National Guard is under her command, not theirs. There's nothing FEMA could have done to change what happened in Louisiana short of deposed the State government.
I mean, crap, you coulda at least pointed out I spelled usurpation wrong.
Glad to see that the way I chose to be annoying is the only thing you could attack me on.
Also, didn't you just write the equivalent of "I never tell the truth?" YAY PARADOX!
Funnily enough, I happened to be in Louisiana during Katrina and happened to be working for the government at the time. A small portion (like 25%) of our state's national guard was in the process of standing down from Iraq when Katrina hit, and they were actually rotated into the city during the aftermath because our governor wanted to try and save face and look tough by deploying "combat hardened troops" that will "shoot to kill." One of the main Reserve bases in Louisiana, funnily enough, is IN New Orleans and the other 75% of our National Guard was sitting on their asses waiting for orders, as they were under control of the state government, not the federal government. Bush moving in and federalizing those troops would have been seen as a huge violation of states rights and an assurpation of power, as essentially the only legal basis he could have used for it would have been to declare the state of Louisiana to be rebelling and essentially removed the state government from power. In hindsight, that probably would have been a better option.
FEMA, funnily enough, responded more quickly to Katrina in New Orleans than they did to Andrew in Homestead, FL. The cynic in me would say that's because of the demographic differences between the two locations, but such baseless theorycrafting serves no one. FEMA (and pretty much any federal disaster relief agency) is in fact paralyzed without local and state government support and cooperation, as their primary role is organization and logistics; ie: figuring out who needs what and seeing that they get it. They need state and local governments (like the national guard, state police, etc.) to provide the actual manpower to accomplish anything, and in the case of Katrina our lovely (and unsurprisingly deposed) governor just sat around and dithered while people died. She even admitted herself (not realizing that the cameras were on) that she should have sent the guard in earlier and when the president offered to take over for her (since she was obviously in over her head) she told him she'd think about it and get back to him in 24 hours.
But of course, it's obviously Bush's fault, he's such a big meanie that Blanco was too scared to call and ask for help...
Which parish is this?
I spent well on five years being the lone voice in the wilderness at the Lafayette City/Parish Government, slowly spreading OSS... Sadly I had dozens of users using OSS at their homes (especially Linux LiveCDs and OO.o) but they weren't allowed the option of using it at work by policy...
Shut up.Most people actually do know there 'tax load'.
Having done income taxes a while for a living I can say from personal experience that 50% of Americans have no idea whatsoever what their tax burden is (because they don't care) and another 25% or so think they understand it but are mistaken. Most of the rest are small business owners, and they do write a check for their taxes every time they get a "paycheck".
Yes, Exxon got 9% of that 114 billion. But what percentage did the Federal government get? And we should tax them MORE?
People in fact do not understand it costs money to have services, as to the average person "The Government" comes out of the same magic fountain as "Health Insurance," "Car Insurance," and "The Lottery."
Sounds good to me. I always thought it was moronic that some of the brightest guys I worked with in graduate school were going to be forced to go back to India and make nothing, taking all the knowledge they have generated and will generate with them, instead of letting them enrich our workforce. If nothing else, it'd be a lot easier to work with offshore developers if they spent a couple years working in the US with a team of good developers.
And then at the same time I'm being told I should have compassion and allow a bunch of criminals to stay in the US while my buddy's family mortgages their house to put him through a US school and he risks having his visa revoked for looking at someone crosseyed. Yeah, that's fair.
They bombed the wrong things and didn't bomb what they did bomb effectively enough to make a difference.
Exactly how is bombing your enemies a mistake?