c = getchar() ! = EOF ;

for example you read chars from file in a loop. You need sign to stop, cause every file has its end. So you read entil EOF, this is end of file

c = getchar() ! = EOF ;

for example you read chars from file in a loop. You need sign to stop, cause every file has its end. So you read entil EOF, this is end of file

/report not sure what this is, but doesn't seem to be related to C/C++

Is there anyone in this group using Doom Emacs as their C++ IDE?

thx Pavel

I do

if you use doom emacs you just uncomment ;; cc in your init.el

what is the error?

i would suggest you join doom emacs discord group (you can find the link on github)

/get cppbookguide

@JRandomGuy @unterumarmung https://www.reddit.com/r/cpp/comments/ldxkwt/iterator_invalidation_of_stdstring_view/gm9oyjd/

Anyway your question was kinda.. weird? Idk. I mean I don't like unnecessary state and mutations, I'd try to find a way of writing the code without the mutation

i mean what's the point of a non-owning view if you can't mutate it the way you want.

I'd try to get rid of the mutation + an iterator saving somewhere in memory

Hello everybody, I'm C programmer, I'm using MS Visual Code but now I need to choose a good IDE (not editor) for Linux. My needs are: free license, dark mode editor and if it's possible a GUI interactive editor (but it's not mandatory). Thnx for supporting.

Hello everybody, I'm C programmer, I'm using MS Visual Code but now I need to choose a good IDE (not editor) for Linux. My needs are: free license, dark mode editor and if it's possible a GUI interactive editor (but it's not mandatory). Thnx for supporting.

Hello everybody, I'm C programmer, I'm using MS Visual Code but now I need to choose a good IDE (not editor) for Linux. My needs are: free license, dark mode editor and if it's possible a GUI interactive editor (but it's not mandatory). Thnx for supporting.

Cross platform: Atom, VS Studio Code. All support useful plugins, such as Lint, format code,+ integrated compiler or build script.

In Window, Visual Studio (Express version) lack many utiliies

I prefer SubLime Text in both Window in Linux. Although it's a commercial software, but you can use it without register

I can't see any reason you use Sublime Text as a main tool to write code except your computer is way to slow.

vim for slow computers :)

SUblime ver 3.x is seem so cubersome, but 2.x is light and fast

and at least in Window it's open and navigate in the large prrj more quickly than VS

and you're wrong, it's full feature IDE with many utilites, even design resources + GUI

it looks this is going OT

and you're wrong, it's full feature IDE with many utilites, even design resources + GUI

what is exactly IDE in your idea? While you consider VIM is a IDE?

You are your best judge!! Manipulate your size😜 — #include <iostream> #include <string_view> using namespace std; int main() { std::string x = " this looks funny"; std::string_view y = x; std::string z {y}; cout << "String: " <<y.data() <<endl; cout << "Size : " <<y.size() <<endl; std::string_view::iterator it; int i=0; for(it = y.begin(); it!= y.end(); it++) { cout <<"Test-1: " <<i <<":" <<*it //<<"String: " <<i <<":" <<y.data() //## <<endl <<"Size-1: " <<i <<":" <<z.size() <<endl; //y.remove_prefix(*it); //#unhide# //y.remove_prefix(i); //#unhide# i++; } //////—-either-of-above-&-below—- //const int k=y.size(); /* for(int j=0; j<y.size(); j++) { cout <<"Test-1: " <<j <<":" <<y.data() <<endl <<"Size-1: " <<j <<":" <<y.size() <<endl; y.remove_prefix(j); } */ cout << "Last-Str1\t: " <<y.data() <<endl; cout <<"XX—————" <<endl; i =0; cout <<"String: " <<z.data() <<endl; cout <<"length: " <<z.size() <<endl; std::string::iterator itx; for(itx = z.begin(); itx != z.end(); itx++) { cout <<"Test-2: " <<i <<":" <<*itx <<"String: " <<i <<":" <<z.data() <<endl <<"Size-2: " <<i <<":" <<z.size() <<endl; z.erase(i, 1); i++; } cout <<"Last-Str2\t: " <<z.data() <<endl; cout <<"\nTypeX:"<<typeid(x.data()).name() <<"\nTypeY:"<<typeid(y.data()).name() <<"\nTypeZ:"<<typeid(z.data()).name() <<endl; return 0; } 🙃🙃

i don't see what you fixed. list of undefined behaviours - y.remove_prefix(*it); *it >= ' ' = 32 > 20 = y.size(); y.remove_prefix(i); y.remove_prefix(j); at some point i or j = 6 > y.size() = 5 at that point the erase loop - erasing contents invalidates iterators. itx++ uses invalid iterators, which is undefined behaviour. if you somehow fix that, the z.erase(i, 1); will eventually throw std::out_of_range because i keeps growing and z.size() keeps shrinking.

why this compiler shows a wrong output for this program?: http://cpp.sh/26alq6

This is undefined behavior

Exactly what makes it an undefined behavior? Logically the output must be 9. Other compilers have no problem with this.

Exactly what makes it an undefined behavior? Logically the output must be 9. Other compilers have no problem with this.

Order of execution is not specified

Other compilers just implement it differently, there's no problem in any of the compilers

> Logically the output must be 9. What logic is that?

not really. compilers are written for correct code. code that exhibits undefined behaviour is incorrect by definition.

Right, I meant that the compilers don't have problems :)