pkolaczk

74 ms·

901.
by pkolaczk 10y ago
"But we couldn’t afford to fight the case" I think there must be something very wrong with the court system in USA. This is the one who claims their patents have been infringed that should prove at the court and pay the price for
902.
by pkolaczk 10y ago
> Kotlin has generics that are in most circumstances reified enough ;). They are not more reified than what you can achieve by just putting Class<T> fields in Java objects to represent the runtime type of the generic type parameter
903.
by pkolaczk 10y ago
Kotlin doesn't really have true reified generics (any more than e.g. Scala has), Java 8 has first class lambdas, extension methods and @Nullable now. Kotlin is just Java 8 with cleaner syntax.
904.
by pkolaczk 10y ago
This is happening currently as well, even with very sophisticated remote car keys in cars from 2016-2017. Most modern systems have exploitable vulnerabilities and thieves are probably the first to learn them.
905.
by pkolaczk 10y ago
A person with this skill set would not be the same who do burglary. More likely, burglars would just license the software / hardware for disabling alarms the similar way how car thieves probably do this now. I doubt car thieves are sec
906.
by pkolaczk 10y ago
Scala is an official Intellij plugin as well. Installing it takes two clicks.
907.
by pkolaczk 10y ago
Gradle has a daemon, but I have some doubts if it really keeps scalac hot in memory. Last time I tried Gradle was weirdly slow with scala incremental compilation, while SBT worked like a breeze. As for compiling 200k LOC - just split it in
908.
by pkolaczk 10y ago
> I think compiling a large codebase from scratch would be quite slow, and slower than templated C++ It very much depends on which features of Scala you use. If you restrict yourself to the features available in Kotlin or other "bet
909.
by pkolaczk 10y ago
You get much better compile times if you keep scala compiler running in daemon mode (in SBT or IDEA; AFAIK Gradle can't do this yet), so it gets more benefits from JVM HotSpot. It makes a tremendous difference (up to 10x) on larger cod
910.
by pkolaczk 10y ago
C++ exceptions definitely come at some non-zero cost, albeit very small on the happy path, both in terms of runtime and code size. RTTI also comes at a cost of higher memory footprint, but more importantly relying on RTTI is a sign of bad d
911.
by pkolaczk 10y ago
> they won't expose conflicts to the user layer. They will, you'll see them as separate rows of the same partition, and then you can merge them as you wish in the application.
912.
by pkolaczk 10y ago
Now you are arguing about a lack of a particular builtin feature. Riak is last-write-wins by default with optional vector clocks and builtin CRDTs. Cassandra is last-write-wins by default with clustering columns allowing to implement an eq
913.
by pkolaczk 10y ago
You can have safe updates through clustering columns or if you really insist on destructive updates - through LWTs. With clustering columns you can easily achieve whatever is possible with vector clocks. http://www.datastax.com&#
914.
by pkolaczk 10y ago
Using timestamps and last write wins is a well known and well documented behavior, so you must assume updates can be sometimes applied in a different order than they were submitted. However, reordering updates is not the same as rolling bac
915.
by pkolaczk 10y ago
http://www.datastax.com/dev/blog/testing-apache-cassandra-wi...
916.
by pkolaczk 10y ago
Cassandra had a minor bug with timestamps which was fixed relatively fast and now it passes Jepsen fully. There were also a few implementation issues around LWT (Paxos) but at that time Paxos was very new. There were no architectural /
917.
by pkolaczk 10y ago
Even on a single core, there are several copies in different cache layers and synchronizing them is done by sending asynchronous messages. Sure, in that one particular edge case when the threads are sharing a core you're right, but thi
918.
by pkolaczk 10y ago
Well, even though I'm totally for using a modern GC when I can, implementing an efficient GC (low pause, high throughput) requires a lot of effort and special hardware. This is still not available for a number of platforms, particularl
919.
by pkolaczk 10y ago
"sharing data" is quite illusory. Even if two threads have a reference to the same object, the CPU deals with it internally by making several copies, asynchronous message passing and locking, and in many cases it can lead to abysm
920.
by pkolaczk 10y ago
"What makes you think I'm angry?" The wording you used and the fact that your post was a completely off-topic opinion, just to attack the language you don't like. We're discussing various null-safety approaches here
921.
by pkolaczk 10y ago
Why so angry? I pointed to one obvious limitation of Kotlin null handling compared to Scala and you're attacking the whole language. Scala and Kotlin both have their place and they are not direct competitors at all, because they have
922.
by pkolaczk 10y ago
Kotlin can't abstract over optional types. Scala Option is a monad which let's you do plenty of cool and useful stuff that Kotlin can only dream of. Kotlin solution is actually more complex, because it is baked into the language
923.
by pkolaczk 10y ago
The problem is that you often don't know what the state of the patient is going to be in a year, two or five, after the treatment. My grandma is 88 now. A few years ago she had serious issues with heart, blood overpressure, and electro
924.
by pkolaczk 10y ago
Technically you're right, but what you really want at home is not generating heat, but having more heat inside. These are not the same things. You can actually move some heat from outside to inside by using a heat pump (powered by
925.
by pkolaczk 10y ago
Antenna gain is a function of directionality and vice versa. Patch antennas are also good because they have often very low "backward gain" but at the same time they are not very directional forward, so they are good to be placed
926.
by pkolaczk 10y ago
Dotty (the next Scala) does have true sum types.
927.
by pkolaczk 10y ago
I'd rather say templates are a hack to get generics in C++, because C++ lacks real generics contrary to eg. Java, C#, Haskell or Scala. Templates used as generics are limited in a way that the typechecker can't reason about generi
928.
by pkolaczk 10y ago
And my experience has shown that soft skills (= EQ, being good with people) among programmers are not worse on average than in any other occupacion. In my life I've just met too many jerks among sales-people, managers, lawyers, doctors
929.
by pkolaczk 10y ago
The proprietary Nvidia driver supports Optimus with nvidia-prime. No need for Bumblebee. There are still a few bits missing there, though, like external display support in low-power mode. So, basically I agree - it is still PITA.
930.
by pkolaczk 10y ago
My father is a mechanical engineer and he says the amount of problems in the designs he reviews is very high, contrary to popular beliefs. There are often multiple rounds required to clean things up and some problems are discovered at build

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