OpenGL

Making shapes and geometrical representation for school project

Can anybody write analog of this python code in C? import subprocess output = subprocess.getoutput("command") print("cmd: "+output)

This code get symbols from terminal output, I don’t like to write code in python but I didn’t find analog of this in C language

use pipes

Do u mean popen()?

Can anybody write analog of this python code in C? import subprocess output = subprocess.getoutput("command") print("cmd: "+output)

system("command>output"); FILE *fcmdout = fopen("output", "r");

read about pipe() lol

I need a function wich return char[]

I need a function wich return char[]

Google didn’t help me

http://www.microhowto.info/howto/capture_the_output_of_a_child_process_in_c.html

auto fn = [&] <typename T> (std::string arg, T val) { bool empty = args[arg].empty(); if constexpr (std::is_integral_v<T>) { return !empty ? std::stoi(args[arg]) : val; } else { return !empty ? args[arg] : val; } }; Well well well

wait how is that a constexpr ? O.o"

wait how is that a constexpr ? O.o"

The type checks are compile time

yeah but the value is not

so it shouldn't be a constexpr

so it shouldn't be a constexpr

https://en.cppreference.com/w/cpp/language/if

Oh. I missed this one.

And this: auto fn = [&] <typename T> (std::string arg, T val) ?

oh, that is just a lambda. maybe it's the only language where I wouldn't use them inline.

hmmm....?

These <> fellas

Though. There's also to say that C and C++ have gigatons of libraries available for most of the business stuff and that, that is what carries the community and what actually the programmer is happy about (because it means better environment too) But this means also, that it's going to be very slow for C++ to adequate to the modern standard way of thinking a program.

I still wonder why people still programs in C++ instead on moving to easier solutions. It's ok you might want to optimize and I don't think C++ has such that memory harness they usually complain about (I actually think it's a matter of experience of the programmer) but I think you should be able to use most if not all of the modern tools to write better programs for example, Haskell, OCaml, but even experimental languages like Scala and Dart, they all compile to native binary (still somewhat inefficient since they embed a whole VM, OBVIOUSLY) and they all provided (for example) generic lambdas much before C++ did I mean, take a look at the NIM programming language. It doesn't have a VM, its output binaries are light and slim and it even features STATIC DEPENDENT VARIABLES, LOL

I just enjoy writing in cxx

I still wonder why people still programs in C++ instead on moving to easier solutions. It's ok you might want to optimize and I don't think C++ has such that memory harness they usually complain about (I actually think it's a matter of experience of the programmer) but I think you should be able to use most if not all of the modern tools to write better programs for example, Haskell, OCaml, but even experimental languages like Scala and Dart, they all compile to native binary (still somewhat inefficient since they embed a whole VM, OBVIOUSLY) and they all provided (for example) generic lambdas much before C++ did I mean, take a look at the NIM programming language. It doesn't have a VM, its output binaries are light and slim and it even features STATIC DEPENDENT VARIABLES, LOL

I just enjoy writing in cxx

which is just okay u.u"

which is just okay u.u"

What's wrong with C++? And giving example of alternatives like haskell and ocaml? There is a reason why there are few if any large projects one of those. Purity is good in theory and maybe small project but in real world large scale is a pain.

And yeah you miss a lot about C++. It's "native", so it can run anywhere, literally. Ypu can acxess your C++ lib from any environment, you manage memory as you like (which is essential for my many projects, especially my unique pet project), you can create optimized single-executables, write one codebase maybe with some ifdefs and you have code that you compile literally on anywhere. For example, my cryptolib runs on Windows, Linux and Android from single codebase. I've written a simple desktop GUI in ImGui with full encryption support, all features of my cryptolib, fonts and icons included it's about ~900kb single static executable, just put it into your USB and use it anywhere.

And yeah you miss a lot about C++. It's "native", so it can run anywhere, literally. Ypu can acxess your C++ lib from any environment, you manage memory as you like (which is essential for my many projects, especially my unique pet project), you can create optimized single-executables, write one codebase maybe with some ifdefs and you have code that you compile literally on anywhere. For example, my cryptolib runs on Windows, Linux and Android from single codebase. I've written a simple desktop GUI in ImGui with full encryption support, all features of my cryptolib, fonts and icons included it's about ~900kb single static executable, just put it into your USB and use it anywhere.

Not true. It can't run anywhere 🤦‍♂