4 ms·

I interview a lot of C++ developers who have 20 or more years of experience I feel really bad when the vast majority of them fail to keep up with modern standar

by Kranar 5y ago

I interview a lot of C++ developers who have 20 or more years of experience I feel really bad when the vast majority of them fail to keep up with modern standards or take the time to understand their tools resulting in all kinds of misconceptions based on outdated information. Lambda expressions do not involve any kind of hidden allocations, their definition is precisely formalized and can be reviewed in S 7.5.5 of the standard. Even if you don't care to read the standard, there is no shortage of resources online that explain what a lambda expression is, and none of them involve anything to do with hidden allocations: https://en.cppreference.com/w/cpp/language/lambda https://en.cppreference.com/w/cpp/language/lambda I'm sorry to pick on you specifically, but it's a major problem that is entirely unnecessary. It's almost heartbreaking that the people who should have the most experience in a subject based on decades of knowledge are often the ones who carry the biggest misconceptions and spread the most misinformation.

b20000 5y ago
Maybe the allocations I was referring to came from using std::function. My point was that if you are not careful when you write software in C++ and use modern features, you will get behaviour you don't want or didn't expect. I have no time to read the standard or keep up with it. Maybe that is what people at Google can afford to do? I'm guessing that is where you work. I run a small business, and I have to juggle a lot more than just writing code. When I have a problem, I figure out where it's coming from, and fix it. If you run your own business I'm sure you understand that. Not keeping up with the standard has nothing to do with ignorance or refusal, but with constraints. I also don't think it should be required to know the standard, or the syntax for features you don't need to use everyday of the top of your head. If you are not sure, look it up. That's what the internet is for. In any case, no need to be arrogant and dismiss people with experience as stupid or ignorant, or blaming them for spreading misinformation, simply because they don't know certain syntax by heart or don't keep up with the standard.
- Kranar 5y ago
  >My point was that if you are not careful when you write software in C++ and use modern features, you will get behaviour you don't want or didn't expect. This is an unsubstantiated point and simply untrue. Modern features have worked hard to maintain what is referred to as "zero cost abstractions". >If you run your own business I'm sure you understand that. I do own and operate a business, a quant firm engaged in HFT. It's part of the reason why I hire so many C++ developers. >Not keeping up with the standard has nothing to do with ignorance or refusal, but with constraints. The ignorance comes from going into an interview where one would presumably be expected to have a basic understand of modern C++ functionality and then proceeding to call that interview BS when in fact it was you who simply had a poor understanding of what was expected. If you don't want to use lambda expressions or you feel like using C++ like it's still the year 2003, so be it, that is your choice... just don't be surprised and go around calling interviewers full of BS when you continuously refuse to keep your understanding of technology up to date. The problem in this case is not with the "BS interview" or the interviewer, the problem is with you. If you do not keep your understanding of C++ up to date, for whatever reason, then an interviewer is right to reject you for it in favor of someone who does take the time to keep their skills up-to-date.

by Kranar 5y ago

b20000 5y ago

Maybe the allocations I was referring to came from using std::function. My point was that if you are not careful when you write software in C++ and use modern features, you will get behaviour you don't want or didn't expect. I have no time to read the standard or keep up with it. Maybe that is what people at Google can afford to do? I'm guessing that is where you work. I run a small business, and I have to juggle a lot more than just writing code. When I have a problem, I figure out where it's coming from, and fix it. If you run your own business I'm sure you understand that. Not keeping up with the standard has nothing to do with ignorance or refusal, but with constraints. I also don't think it should be required to know the standard, or the syntax for features you don't need to use everyday of the top of your head. If you are not sure, look it up. That's what the internet is for. In any case, no need to be arrogant and dismiss people with experience as stupid or ignorant, or blaming them for spreading misinformation, simply because they don't know certain syntax by heart or don't keep up with the standard.

Kranar 5y ago
>My point was that if you are not careful when you write software in C++ and use modern features, you will get behaviour you don't want or didn't expect. This is an unsubstantiated point and simply untrue. Modern features have worked hard to maintain what is referred to as "zero cost abstractions". >If you run your own business I'm sure you understand that. I do own and operate a business, a quant firm engaged in HFT. It's part of the reason why I hire so many C++ developers. >Not keeping up with the standard has nothing to do with ignorance or refusal, but with constraints. The ignorance comes from going into an interview where one would presumably be expected to have a basic understand of modern C++ functionality and then proceeding to call that interview BS when in fact it was you who simply had a poor understanding of what was expected. If you don't want to use lambda expressions or you feel like using C++ like it's still the year 2003, so be it, that is your choice... just don't be surprised and go around calling interviewers full of BS when you continuously refuse to keep your understanding of technology up to date. The problem in this case is not with the "BS interview" or the interviewer, the problem is with you. If you do not keep your understanding of C++ up to date, for whatever reason, then an interviewer is right to reject you for it in favor of someone who does take the time to keep their skills up-to-date.