!rant

Some days ago I finished "Ray tracing in a weekend" (Peter Shirley) and I'm learning a lot :D

In the new year I will start with "Ray tracing the next week", but there are still some things I want to tackle before that (improve code quality, optimize... it's my first project that is bigger than a codeforces problem solution, a part from the projects at work).

Any sources of wisdom and recommendations are welcome!!

I'm working on a programming language with a "bytecode" interpreter and a compiler that translates source code to said bytecode and... it sort of actually works!

I want to recreate an Erlang-style environment, currently you can write functions, call C++ functions via wrappers, have immutable-only values, and it has no explicit control structure apart from statement sequencing and the if-expression because I want to make it as functional as possible. Next thing on the list is to add a green threads implementation and ability to spawn and send messages to processes.

Still a WIP and heck even design-in-progress.

Now for the rant:
I'm using CMake for building C++ (interpreter) and Stack for Haskell (compiler) and I've been trying to get them to talk to each other for hours because I want CMake to manage the Stack build too and shove all the executables into one place. CMake documentation is weird and Stack isn't too helpful either, so I guess I'll just spend another few hours trying to get Stack to fuckin reveal its build directory to CMake and/or build to a given directory. Ugh.

In 15+ years of full time work as a C++ software engineer there is one tool that I always hated: CMAKE. What a fucking pile of shit, seriously, every time there is project that uses it I simply cannot build said project with one click. In all these 15 years working in different companies the only reason people speak about cmake is to avoid adding source files to multiple projects (VS, XCode, Android).

I'm not some kind of newbie: I've make cmake projects myself, I've build hundrends of projects that use cmake and I even contributed fixes to their code. I still believe that cmake is garbage that should stop to exist.

I kind of feel like I invested 2.5 years of my life trying to run away from being a hamster, and here I am in my PhD back in the hamster spot.
The moment I finish compiling some not-os-compatible package, I get a new one to tame. A day after perfecting a sensor integration, another sensor is thrown at me. I am the one who calibrate and tunes the MoCap system, including manufacturing the markers and ordering part. I make sure the robot is functional, from software to battery replacement.
I need to crawl on floors to collect data, while the rest of the lab uses public datasets.
I optimize C++ code, and then get asked to write unit tests and use a CI, while the rest of the lab just writes some subpar Python.
They are doing research and I am doing Cinderella work.
I shouldn't be punished because I get shit done, whether it 3D modeling, CMake voodoo or low-level programming.
Instead of encouraging other lab mates to develop skills, everything is thrown at me. Fuck that shit.

This bonehead wants to delete your C++ code. He obviously means that to use this for out-of-source builds, but still pretty dumb and easy to mess up.

Why is starting a C++ project so overly complicated and annoying?!

So many different compilers. So many ways to organize the files. So many inconsistencies between Linux and Windows. So many outdated/lacking tutorials. So many small problems.

Why is there almost no good C++ IDEs? Why is Visual Studio so bizarre? Why are the CMake official tutorials literally wrong? Why can't we have a standard way to share binaries? Why can't we have a standard way to structure project folders? Why is the linker so annoying to use?

Don't get me wrong, I quite like the language and I love how fast it is (one of the main reasons I decided to use it for my project, which is a game almost comparable to Factorio)... But why is simply starting to write code such a hassle?

I've been programming in Java for years and oh god I miss it so much. JARs are amazing. Packages are amazing. The JDK is amazing. Everything is standardized, even variable names.

I'm so tempted to make this game in Java...

But I can't. I would have a garbage collector in the way of its performance...

I can't take a (C++) project seriously if it is using Visual Studio's build system instead of autotools, CMake or even just a Makefile.

Visual Studio 2022 compiles our internal c++ cmake project as a mix of x86 and x86_64 binaries, then fails to link.

VS 2019 correctly compiles everything as x86_64.

No idea why. And, obviously, it's not a documented problem.

After many painful hours of fixing cmake errors, I've managed to successfully build 2 large C/C++ projects in a week. That shit hardens you.

C++ development will be my end.

The absolutely unreadable errors, the overly convoluted macros set up in the project, the cmake build system.... The absolutely unnecessary separation into cpp and header files...

help

I'm working in a complex CMake/C++14 project.
Many libraries uses EASTL as STL replacement, works and compiles flawlessly.
Have to use Qt5 for an application which uses the libraries.
The EASTL Library fucking collapses
Compile fails, 1k of syntax errors somehow.
After hours trying to figure out without alterating the EASTL library (i don't want to maintain custom versions of 3rd party libraries, an complete burden to maintaining updated)
Remove all reference of Qt5 from the code and the build system.
It fucking compiles.
Isolate an minimal build which only uses CMake, EASTL and Hello World in Qt5.
1k of syntax errors again.
Spend hours trying to fix it, no avail, still fucking 1k syntax errors.
I'm past beyond of the project development where ALL the big libraries of the project uses EASTL extensively.
One day C++ will drive me into the depths of madness.

For multiplatform C++ development (using Cmake and Conan), should I dev on Linux or Windows?

Fuck. I just want to fucking use OpenCV on CLion on Windows. Why the fuck do I need twenty fucking PhD's in quantum rocket science to set up a simple project with Cmake?

During the time I just wasted trying to get the correct library to link properly, I could have rewritten all of Tesla's fucking CV functionality from scratch, but instead here I am spending literal fucking hours googling why the fuck does 'recursive_mutex' not name a fucking type in namespace 'std' on mingw.

Fuck C++ I'm going back to C# where I can literally install OpenCV and all of its fucking dependencies from nuget with ***ONE*** fucking click.

Trying to start doing stuff with C but CMake is very confusing and I can't find anything solid (and easy to read) about setting it up and including depends and what not. We are totally spoiled in Java with tools such as Gradle or Maven.

Yo I heard you like compiling C/Cpp so we make you compile and link each individual file so you need a makefile for compiling everything. But that shit still gets to annoying to maintain so you make the make files with cmake. Just so you can compile a library basically at all.
And dont get me started on autoconf and random configure scripts you have to run before you actually configure shit.
Can we make compiling a regualr program any more difficult so that we need a whole ass A4 page of documentation just to end up with a binary of something?

Holy shiiittttt I finally got 64bit NASM working on windows with cmake. Cmake documentation is fkn bad man.

I’ve got a c++ file that calls a procedure in an assembly file that calls win32 APIs to show dialogs and other cool shit. Compiling was working fine, linking turned out to be a bit of a pain in the ass, but figuring out how to enable NASM in cmake was a nightmare. Why is the cmake docs so horrific 🥺

I just can't get my head around it. How could a "language" like cmake become so widely used and popular? Let alone be the horrible syntax or the documentation which is an insult to anyone who is trying to read it.

I mean seriously??: " function_xyz( PARAM1 PARAM2 PARAM3) : for this use case A pass the keyword A and the words X Y Z, for use case B pass the keyword B and the words A B C you can also add the keyword D simply to increase the number of possible behaviours this stupid function can have."

But yeah i get it, it's free its cross platform and so on.

But how can after version 10000000.1, after adding dozens of "macros or functions" the most simplest and straight forward use case without any fucking thirdparties be so fucking difficult to implement.

And why are there for any use case 50 different ways of doing it? instead of one simple way?

Really, I just don't get it.

Gotta love it when CMake manages to change the way it handles GLEW in the latest build and breaks the QT moc inclusion directive in the previous. I absolutely detest the current state of cross platform build tools and environments. The amount of ffing time wasted on this crap is just beyond me.

Let me start this off by stating I'm a Java dev, and a noob with C++.

Thought it'd be cool to learn some OpenCL, since I want to do some maths stuff and why not learn something new.

So I sat down, installed Nvidia proprietary drivers, broke my x-org server, purged, reinstalled, rebooted and after a while I got stuff sorted out.

Then on to my IDE. I use CLion and it uses Cmake. C++ noob knows shit about Cmake, so struggle for two hours trying to figure out wtf is going on with the OpenCL libs and why they're only partially detected. Fml.

Finally, everything is configured and I'm set. I start working on a Hello World program using OpenCL. Finish it in 20 mins, all good. No output. Do some googling, check my program a million times. Nothing wrong here. Check the kernel, everything as in the tutorial.

I start checking error codes after a while reported by OpenCL (which I had no clue was a thing) and I get some code saying the program was not created properly (to run the kernel). No fucking clue what's up with that. Google around, find another tutorial, rewrite my code in case I'm using outdated code or something. Nothing.

Fast forward an hour, I find out that OpenCL has logs! So I grab some code from the website I found it on, and voila, I finally get some info on what's going on.

Get a load of this bs.

In the kernel file, so that OpenCL knows that it's a function to run, you have to put __kernel. But in all the places I read, it said to put it as _kernel.

Add the underscore, compile, run and everything is perfect.

Then I tried just putting 'kernel'. Also compiles and runs fine.

Two hours hours and my program was fixed by adding an underscore. IF ONLY C++ GAVE AN INDICATION OF WHAT BLEW UP INSTEAD OF SITTING BACK AND BEING LIKE "oh wow man feels bad, work some magic and try again" THEN THIS WOULD NOT HAVE TAKEN SO LONG.

Then again, it was OpenCL that was being shitty with its styling enforcement or whatever the hell the underscore business is. But screw it. C++ eats shit too for this. Sure, maybe Java babies you by giving you the exact error and position that the error took place at. But at least that way you don't waste hours of your life chasing invisible bugs 😠😠

I'm going to eat some food... Too much energy was consumed fighting the system... Then I'll get back to OpenCL because 😇 but that doesn't make it less bs.

Note to self: Next time remember to clean build when CMake is throwing an error, before you start whining to the library support team.

I have been writing c++ for a long time and I have gotten away with using my own buildscripts and nothing more.

Just started using cmake for a library. What the absolute fuck is this. I have never felt this out of depth in a long time.

WHY is cmake such a total shitstain?

Nothing about it works. literally nothing. I can't even make it run a script and do probably the single most fundamental notion of what it means to run a script, which is display its fucking output.

CUDA is a fucking bitch when it comes to configure projects

Creating my first CUDA project it yelled at me it doesn't support my current gcc version, ended up with me yelling back "OY SHUTUP" and slapping some flag for it to use clang instead — basically what it advised but I didn't listen first. Fine now.

Working on this project on another fresh environment, and now it doesn't detect anything and dumbly tries to reload my CMake project with the LATEST installed gcc when I already told it to use version 8 TWICE. First by setting up a toolchain with compilers pointing to this specific version and second by passing the -DMAKE_C_COMPILER pointing to it again. Still this stubborn piece of shit tries with latest everytime.

The most applauded solution was to use update-alternatives to make gcc point to the version I want CUDA to use. Thank you genius, but what if I don't want to use a deprecated gcc version with normal Cxx projects ?

And cherry on the top of this bullshit, I'm fixing this dumb configuration issue (can't stress enough how much I hate this shit) to be able to fix an EVEN MORE annoying issue with CUDA being a bitch AGAIN and not letting me use std functions where I'm allowed to

Fuck CUDA. Fuck CMake. Fuck C. Fuck everything

I would appreciate if the language server wouldn't crash constantly, it's getting rather annoying.

Why is it that most C(++) tooling I have used feels like a half assed barely working project?

So I did some testing with WebAssembly to see how it works in the most recent version and without Emscripten. I installed CMake and Visual Studio Community 2015 and compiled Binaryen, LLVM and Clang for a few hours (had to do it multiple times because I used the wrong version and forgot a compile flag), ended up with over 10 GB less free space on my laptop.

All that to compile a < 1kb C file to < 1kb WASM code.

At least it works for now and can natively run in (some) browsers.

I fucking cannot stand CMake. I hate this stupid fucking piece of software. I've been trying for 3 fucking days to get SDL2 to link just once and I cannot. It doesn't work in the slightest.

Every time I look for help I find a Stack Overflow post from 5 years ago about someone having the exact same problem and all of the responses are "This function is deprecated, use this instead"

THAT DOESNT SOLVE MY FUCKING ISSUE
WHY DOES CMAKE DEPRECATE THINGS EVERY 1.5 YEARS

THIS ACTUALLY MAKES ME WANT TO SWITCH TO INTERPRETED LANGUAGES I CANNOT STAND BUILD SYSTEMS

SURELY IT CANT BE THAT HARD

WE HAVE OPERATING SYSTEMS, AERODYNAMIC SIMULATIONS, AND A GLOBAL COMMUNICATIONS NETWORK BUT WE CANT FUCKING PASS COMMANDS TO GCC PROPERLY?????

Today, I decided to learn build a c++ project using cmake. Since I've never done a big project in C++ I have no experience with these stuff.

Couple of hours for researching and trying to understand how that thing works, how to specify things, this and that. Wrote a small program for testing.
Everything was fine. Makefile was generated and program was worked.

Then.... Somehow, sublime text started to give me error messages like, 'the header file you included is not found.' I hit the makefile again, the built was successfull... I know that, need to add -I to compiler flag so that it can find the files. But in sublime text constantly refuses my 'possible' solutions.

Even ycm in vim does this. They expected me to write includes like '../thispkcg/include/header.h'

Where did i go wrong ..............

Btw it works like a charm in cLion I don't know why..

Why is it that every time I want to make some dead simple script with Python it turns into the utmost awful programming experience?

Ah no you see you have to install this dependency but even if pip doesn't give you an error your script will still crash on import and vomit up some ugly back trace that doesn't tell you anything.

And then some retarded sub sub dependency wants to run on Python 2 and that has its entire own shithole of dependency hell.

And then for some unknown reason the Python installation wasn't compiled with zlib and some library wants it so you either you compile the entire thing yourself or idk go fuck yourself?

Why is this hot mess of a language still in use? I dont get it, it's easier to set up a cmake project with C++ for gods sake.

Often when i see the annoying as hell t debug exceptionless let’s just bomb entirely but blazing fastness of c and c++ I feel like a nettard
I use c# for its immutable strings clean syntax and beautiful class markers that are redundant compared to c++ but ensure you tell after adding 1000 methods and total lack of all special characters to indicate reference and derreference and pretty lambda syntax... sure it’s lib poor but I get shit done goddamn it and can read my own code later
So why do I feel empty inside every time i run a ./configure and make under Linux like I’m missing some secret party where neat things are being done and want to sob like I do now
I am not a dotnettard even though 5.0 is an abomination in the eyes of man and god ! Even though Microsoft cooks up overcomplex framework technologies that make a wonderful language underused and make us all look like idiots that they then abandon into the scrap heap! We can’t help Linux users haven’t discovered how much nicer c# is and decided to implement it on their own and port their horrible undocumented ansi c bullshit can we ???? Oh god I feel
So hollow inside and betrayed ! Curse
You gates curse youuuu! Curse you for metro direct3d xna wpf then false promises of core ! May you have a special place in hell reserved for you and your cheap wallpaper shifting monitor paintings and a pool speaker that playeth not but bee jees and ac dc forever and ever amen !

Speaking of which do any c/c++ ides have anything that even begins to rival intellisense on Linux and don’t use some weird ass build system
Like cmake as their default ?

Oh sweet memories of time a while back when I already wrote this and still wasn’t getting then tail I deserved

Again

Another hours wasted on debugging, on what I hate most about programming: strings!

Don't get me started on C-strings, this abomination from hell. Inefficient, error prone. Memory corruption through off by one errors, BSOD by out of bound access, seen it all. No, it's strings in general. Just untyped junk of data, undocumented formats. Everything has to be parsed back and forth. And this is not limited to our stupid stupid code base, as I read about the security issues of using innerHTML or having to fight CMake again.

So back to the issue this rant is about. CMake like other scripting languages as bash have their peculiarities when dealing with the enemy (i.e. strings), e.g. all the escaping. The thing I fought against was getting CMake's fixup_bundle work on macOS. It was a bit pesky to debug. But in the end it turned out that my file path had one "//" instead of an "/" and the path comparison just did a string comparison without path normalization.

Stop giving us enough string to hang ourselves!

So I was building opencv some time back.
Nice enough package, like most python linked packages I'm finding though I know you can use it via c and its meant to be but why would you want to ? .. it contains a whole bunch of half finished crap that is actually useful in part including the capacity to tear apart video files and manipulate frames one at a time and then rewrite them back to a file. about the only lib that's easy to use that I saw that does that. hell I can even compose my own video frames. also the only other lib I saw that does that thus far.

so...

I post a bug, because of FUCKING CMAKE NOT WORKING. not conforming with the well thought out build environment that most GNU style c packages use.

you know like when you need an upstream source package to build the code, or a downgraded package to build the code and don't want to fuck up your host environment so you have to specify a bunch of lib paths and the like so that ld and gcc work correctly etc etc etc from your custom build location and so you can later use these same values to find the compiled lib and build software against it.

fucker closes my ticket saying i hijacked the c environment................

no.

its because cmake sucks.

they're using and i don't know why a module specifically written to find libtiff.

specifically written but doesn't find the only source on my system that provides tiff which my env variables point directly to !!!!

lazy fucking cocksuckers !

I want to code a solution this issue.
something that translates ac files and am files and cmakelists into something intelligent and easy to follow that doesn't sacrifice the flexibility of make and gnu shit and unfucks cmake based projects !