there is either a function or a method of std::string for that. Im not quite sure anymore, but im certain you can look that up pretty esily

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Qt creator If you are a beginner go for code blocks

or just better use vscode

Which site do you recommend learning full c ++ ?

does code blocks work on Linux

please i need help in setting up my vscode on my linux system please can some1 help

learncpp.com is pretty good in my opinion

which distro?

am a newbie to coding so i dont knw wt u mean by distro

What linux operating system do you use? Like a debian? Ubuntu? Arch?

does code blocks work on Linux

should i just go and use windows

Honestly linux dostos are usually more user friendly for new computer users i think. Bit i have heard other opinions on that as well. What problem do you face exactly?

please i need help in setting up my vscode on my linux system please can some1 help

please i need help in setting up my vscode on my linux system please can some1 help

thake a look at std::chrono

# include <iostream> using namespace std; int main(){     cout<<"Enter the length of array"<<endl;     int n, counter, length, cd=0;     cin>>n;     int arr[n];     cout<<"Enter the elements of array"<<endl;     for(int i = 0; i<n ; i++){         cin>>arr[i];     }     for(int i=0; i<n; i++){         cd = arr[i+1]-arr[i];         for(int j =i; j<n; j++){             if (arr[j+1]-arr[j]==cd){                 counter++;             }             else{                 break;             }         }         if(counter>length){             length=counter;         }         counter =0;     }     cout<<length<<endl;     return 0; }

Hello. I'm trying to write a program that calculates the instillation of nose type integrable functions. But what I want to do Sample: 1) Press to add a trgonometric expression. 2) Polynomial term Press to add. I do not want to do it. In addition, the user will type commands from the keyboard and this program will immediately recognize the matte functions used immediately. How can I do that?

does the program has gui?

are you writing a simple console program?

Yes. But I also write in the required program for this. But I have to learn what I can do with

If allowed to choose the input language, a RPN string of tokens (like in FORTH) could be adequate, ugly but adequate...

Hlo

https://codegolf.stackexchange.com/questions/175485/the-first-the-last-and-everything-between void between(int a, int b) { int inc = (a <= b) ? +1 : -1; printf("[%d, %d", a, b); for(int i = a+inc; i != b; i += inc) printf(", %d", i); printf("]\n"); }

Hey guys I wanted to know if you'd think it's a good idea to specifically instantiate an object at the end of the heap (like, endofheap address - sizeof(myobject)) I specifically thought about doing this because I want to create a temporary collection that cannot live on the stack since it'll exist across multiple calls, but once all the adds are made, and all the processes done, it'll get deleted I'm working on an embedded system with only 8MB of RAM and I'm trying VERY hard to prevent memory fragmentation as much as possible It's also worth mentioning that memory management is implemented with the heap being all of the space in between static memory, which is at the start of RAM, and the stack, which is at the end of it

Hey guys I wanted to know if you'd think it's a good idea to specifically instantiate an object at the end of the heap (like, endofheap address - sizeof(myobject)) I specifically thought about doing this because I want to create a temporary collection that cannot live on the stack since it'll exist across multiple calls, but once all the adds are made, and all the processes done, it'll get deleted I'm working on an embedded system with only 8MB of RAM and I'm trying VERY hard to prevent memory fragmentation as much as possible It's also worth mentioning that memory management is implemented with the heap being all of the space in between static memory, which is at the start of RAM, and the stack, which is at the end of it

If you don't know the size of the collection ahead of time, you either need to do as you planned or use some sort of allocator. A memory pool with different sizes keeps fragmentation low, however you might waste memory for padding purpose. When "growing" - how do you deal with allocation failures? (which might happen). If you can estimate an upper bound of elements, you could allocate the collection statically ahead of time or on the stack when needed. In the second approach you still might run out of space (and stack corruptions might be hard to detect). If you use global memory / shared memory, remember your functions modifying the collection are not reentrant / thread-safe. What do you store in these collections? Can you change your algorithm to work on a "stream" so you don't need to add all the objects?

If it helps, I'm working on a LilyGo TTGO Watch It's basically an ESP32 with a touchscreen and other peripherals, as far as hardware is concerned 16MB Flash, 8MB RAM, programming it using Arduino; though I replaced setup and loop with my own main, of course calling init() before anything else

How about this one: void between(int a, int b) { int inc = (a < b) ? +1 : -1; printf("[%d, %d", a, b); for (b -= inc; inc * a < inc * b; printf(", %d", a += inc)); printf("]\n"); }

Hey guys I wanted to know if you'd think it's a good idea to specifically instantiate an object at the end of the heap (like, endofheap address - sizeof(myobject)) I specifically thought about doing this because I want to create a temporary collection that cannot live on the stack since it'll exist across multiple calls, but once all the adds are made, and all the processes done, it'll get deleted I'm working on an embedded system with only 8MB of RAM and I'm trying VERY hard to prevent memory fragmentation as much as possible It's also worth mentioning that memory management is implemented with the heap being all of the space in between static memory, which is at the start of RAM, and the stack, which is at the end of it

If the classes contain elements that themselves require allocations then... :/ Is there anyway to profile memory usage? Either on metal or simulated?

An alternative may be to allocate a large pool and hope the allocator recycles it well after free lol. Of course all the initiated classes would sit mid-way in memory...

In this collection I store references to all of the objects I want to call a specific method from I have different classes implementing a base class for different dedicated tasks in my system, and each of them have a "Start" method In the loop where I initialize ALL of my tasks, I send this collection over to them so that they can add themselves on it, and this method is GUARANTEED to only be called once per object, and guaranteed to only be called before the main loop, so after all this is done, this collection is thus deleted Then, all objects that added their references to it will be started automatically Think of Window's "startup apps" folder, I don't want to keep a separate list that I need to maintain additionally, I'd much rather encapsulate this within the class itself

Where do you get the objects from? Are they known at compile time?