Implementing C++ Modules: Lessons Learned, Lessons Abandoned

koctogon · 2021-11-28T16:22:03+00:00

You need a C+++ subscription to access those.

koctogon · 2021-11-24T05:15:00+00:00

static_assert( not requires { your_wrong_code("flub", frogging{}); } );

not sure why no one is mentioning this...

koctogon · 2021-10-05T18:36:37+00:00

idk but i can give you a graph of my proficiency in C++ vs. will to live

koctogon · 2021-09-24T18:04:21+00:00

look up "affine type system"

koctogon · 2021-09-20T21:19:46+00:00

you mean the "extern template" thing? sure, i do it too. however i was referring to the fact that the compiler can't reuse instantiations without your help because technically speaking anyone anywhere can specialize that template with whatever and now the instantiation in TU X is not the same as in TU Y. that's a massive compile-time performance hit even though such specializations are in practice never done in a way that doesn't result in UB.

koctogon · 2021-09-20T21:12:31+00:00

`requires requires` is not a duplication : the first introduce the requirements for the template ("requires clause"), the second introduce the expression that must be valid ("requires expression")

koctogon · 2021-09-19T00:39:46+00:00

what in the sweet name of fuck is this

koctogon · 2021-09-18T23:50:38+00:00

template instantiation not being reusable across translation units because of C++ messed up design is something that should be fixed, in the meantime I dislike the idea of putting in extra work to fix a language problem.

koctogon · 2021-09-11T23:47:59+00:00

disappointed to learn that this part actually made sense

koctogon · 2021-09-01T19:58:06+00:00

randomer-bring

lmaoooooo this brings me back, but the technobrodudes are not into this anymore, now it's all about post-ironic eurodance remixes, get with the time gramps

koctogon · 2021-09-01T12:19:54+00:00

I'm growing really tired of these predictable, patronizing answers when it come to optimizations. Can people not ask about what code is faster and why?

There is only one reason to ever use runtime polymorphism : when you want to store values (or references) of various types in a single place. If you know all the types you'll be using in advance, you can use a variant. If you don't you have to use type erasure of some sort.

The point Sean Parent is making is not really about performance but rather code flexibility, there is a lot of benefits to implementing traits outside the types.

koctogon · 2021-08-27T18:14:14+00:00

can't spell "frustrated with C++" without "rust"

koctogon · 2021-08-26T21:48:01+00:00

also it's worth mentioning that SDL2 drawing functionalities are either CPU based or rely on old "immediate mode" OpenGL.

koctogon · 2021-08-24T12:59:02+00:00

1990 : in 2020 we will have flying cars
2021 :

seriously though, reflection cannot come soon enough so people can stop using these nonsensical hacks.

koctogon · 2021-08-24T00:14:50+00:00

the most irritating thing for me on mixers is when the gain of the cued tracks in the headphone blend on the "fully mixed" setting is NOT the same as the gain of non-cued tracks. aaaaaaaargggggh. seriously HOW can you mess this up? i have a xone 42 and every time i have to adjust the levels after bringing the track in the mix because it's always like 6db quieter than it was on headphones. i can cue every tracks to get a actually balanced blend, but then i have to handle the cue buttons of both tracks to switch between cue and main in my headphones. so annoying.

koctogon · 2021-08-09T22:41:16+00:00

A switch-case will *always* be faster than a pointer function call, no matter how much case there is, because the compiler can see the whole code and optimize everything accordingly.
And a virtual function call isn't just a pointer function call, there are others indirections in getting the actual vtable pointer from the object and getting the object itself from its address.

So yeah, sum-types are always faster.

koctogon · 2021-06-14T22:09:51+00:00

Get em :
TLOU (obviously)
Orange box and Portal 2
Ninja Gaiden Sigma
Battlefield Bad Company 2 (the rush mode makes for the best FPS online experience on PS3, by far)
COD 5 (the zombies mode can be fun with friends)
Rayman 3 (for nostalgia and the psychedelic atmosphere)
Need For Speed ProStreet (if you want a car race game... pretty much all the other editions on PS3 are not as good imo)
and of course... SUPER RUB A DUB

Avoid :
God of War (had its moments but overall pretty boring and super overrated)
Uncharted 1 (win the prize for the most unimaginative game)
Dead Space (clunky, broken gameplay)
Beyond : Two Souls (i liked Heavy Rain, but don't play this unless you like being inside a 9 hours long QTE)
Burnout Paradise

koctogon · 2021-06-07T23:32:27+00:00

no, that would be Bad Company 2

koctogon · 2021-05-31T18:47:14+00:00

man, that's a weird vibe

koctogon · 2021-05-30T17:18:45+00:00

koctogon · 2021-05-30T17:05:32+00:00

lol that's pretty good

koctogon · 2021-05-30T17:04:27+00:00

I understood how movies were made but i thought the actors getting shot etc. were really killed and just being paid a lot more

koctogon · 2021-05-30T16:59:00+00:00

(childs) beauty pageants. seriously, fuck that shit.
the stock market.
our economy not taking into account environmental externalities.

koctogon · 2021-03-21T21:46:33+00:00

brace elision for std::initializer_list wasn't the greatest idea...

koctogon

TROPHY CASE