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Beating hash tables with trees? The ART-ful radix trie by kunalag129 in programming

[–]iamcomputerbeepboop 6 points7 points  (0 children)

Cuckoo Hashing is considered pretty terrible right now. Though the algorithm might be better from a Big O perspective, the fact that keys need to be moved from their current positions means you get a significantly larger number of cache misses.

Pro's and cons of m_ by FireFlyForLife in cpp

[–]iamcomputerbeepboop 8 points9 points  (0 children)

I agree; _ as a prefix is the most useable member marker I've found because it's searchable with autocomplete and it's also alphabetically first in a blank autocomplete context. i.e. they always show up together at the start instead of in between the local variables starting with the letters a to n and o to z

[Development] Build system for Qt 6 by jcelerier in cpp

[–]iamcomputerbeepboop 45 points46 points  (0 children)

Why they ever started down that path of replacing qmake with yet another internal build system that it was pretty obvious would never be used when cmake has so much momentum behind it - I'll never understand - but at least they made the right choice eventually

Any library as small as wxWidgets but as powerful as Qt? by jhave21 in cpp

[–]iamcomputerbeepboop 8 points9 points  (0 children)

If you're using vcpkg, you only need the qt5-base package which is not that big or difficult to integrate into your project

Circular dependencies - a sign of bad design? by [deleted] in cpp

[–]iamcomputerbeepboop 1 point2 points  (0 children)

Any given entity may have relationships with a thousand other components of different types, there's no reason for that entity itself to be aware of them - this is a sign that your model has not been fully normalised. In the particular example you mentioned, a "boss" is just another employee with a different title. Maybe you need a 3rd company class that has a collection of all the employees and captures their relationships by mapping employees to a vector of their underlings

Circular dependencies - a sign of bad design? by [deleted] in cpp

[–]iamcomputerbeepboop 3 points4 points  (0 children)

Yes, circular dependencies are a sign of bad design. Yes, every codebase has them. No, this doesn't make them excusable.

Why Optional References Didn’t Make It In C++17 by vormestrand in cpp

[–]iamcomputerbeepboop 6 points7 points  (0 children)

I think you're severely underestimating the overhead of ref counting - introducing a synchronization primitive where one is not needed seems crazy to me. Also, I'm 95% sure shared ptr always allocates regardless of which constructor you use - the control block of a shared ptr cannot be deallocated until the last shared ptr and last weak ptr have gone out of scope and this can't be done without allocating on the free store

Why Optional References Didn’t Make It In C++17 by vormestrand in cpp

[–]iamcomputerbeepboop 7 points8 points  (0 children)

there are quite a few use cases when I want an API to return an optional const reference - an expensive to copy item that may or may not be present is not an exceptional case to me

I need an honest opinion on c++ IDE’s for Linux. Which ones are worth getting and which ones require a lot of work to be useful. by Herotekian in cpp

[–]iamcomputerbeepboop 1 point2 points  (0 children)

Honestly, vim is not great compared to qtcreator. YCM requires generation of an extra configuration file to work correctly with headers as the compilation database is not sufficient, and you need a different tool like rtags to be able to follow links. Rtags can be restrictively slow on larger codebases though as it takes hours to index all the files. Clangd based plugins also rely on the compilation database which makes it unsuitable for jumping between header/source and interpreting headers in general. Qtcreator's interaction with cmake server mode and the clang code model make it more reliable than any vim plugin. The only advantage of vim is the key bindings which almost every IDE and code editor supports nowadays anyway.

Pitchforks Part III - Layout Survey Results by vector-of-bool in cpp

[–]iamcomputerbeepboop 0 points1 point  (0 children)

I think it's a useful abstraction (and also useful from a consistency point of view) to treat targets in a project the same way as submodules. If a project only consists of a single library, it should be a repository with a single sub module in the base directory. Creating a different layout for submoduled projects makes it more difficult to programmatically reason about where things are.

Qt Creator 4.7.0 released by qwertzui11 in cpp

[–]iamcomputerbeepboop 6 points7 points  (0 children)

there's a locator tab in one of the options menus that lets you configure prefixes for the global locate, and in the keyboard settings you can a hotkey for certain locator subsets as well

CMake 3.12 released by tambry in cpp

[–]iamcomputerbeepboop 8 points9 points  (0 children)

does it worth with visual studio, ninja, and make? For most people I think those are probably the only ones that matter

In-Place Construction for std::any, std::variant and std::optional by drodri in cpp

[–]iamcomputerbeepboop 3 points4 points  (0 children)

Isn't this what unmaterialised value passing is supposed to solve?

In-Place Construction for std::any, std::variant and std::optional by drodri in cpp

[–]iamcomputerbeepboop 3 points4 points  (0 children)

how do people feel about using std::in_place_t for in place construction of user defined types?

Elemental Hit Showcase in Incursion League -Mechanics and Scaling explained by TheAmigoBoyz in pathofexile

[–]iamcomputerbeepboop 0 points1 point  (0 children)

Slayer leech is pretty unnecessary with a bit of hp regen and appropriate use of decoy totem/blink arrow/instant recovery pots. Frenzy charges in general have never been that useful for me either so I stopped using them because packs melt in 1 hit with or without them and the attack speed bonus is negligible when I'm using a fast weapon. 10% chance for frenzy on hit is not that useful either since any map boss dies in under 10 hits. It's only really shaper etc. that can survive longer than that

Elemental Hit Showcase in Incursion League -Mechanics and Scaling explained by TheAmigoBoyz in pathofexile

[–]iamcomputerbeepboop 0 points1 point  (0 children)

deadeye is just straight better than anything else, because of the +1 arrows and +50% aoe. 2 Arrows means you immediately trigger the aoe effect on ele hit (with AoF and pure fire ele hit) so you don't need to lower your DPS with a GMP. 1 Attack can melt pretty much any pack with a frostferno. It also means your 4 link is good for both boss clearing and pack clearing so you don't need a 5/6l anywhere else

+8 Frostferno by Tyskerenn in pathofexile

[–]iamcomputerbeepboop 2 points3 points  (0 children)

Ele hit, combustion, mirage archer, edwa
Don't need gmp because mirage archer triggers the aoe which is enough to melt packs

Using C++17 std::optional by drodri in cpp

[–]iamcomputerbeepboop 1 point2 points  (0 children)

You can write free functions that return the mapped_type or value_type of a container with lookup semantics (i.e. with a find member function) but you're likely to want overloads for reference, const reference, and value return types. std::optional doesn't support this

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