Questions tagged [c++]
C++ is a statically typed, free-form, multi-paradigm, compiled, general-purpose programming language. This tag should be used for any question which requires knowledge or expertise with the C++ programming language. This is a general tag which is used for any of the C++ language standards (C++98, C++11, C++17, etc.). The question should identify the compiler being used, the operating system, and which of the C++ standards is being targeted.
9,376
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A recursive_reduce Template Function with Unwrap Level Implementation in C++
This is a follow-up question for A recursive_sum Template Function Implementation with Unwrap Level in C++ and A recursive_reduce_all Template Function ...
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1
answer
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QuadTree implementation in c++
I'm new on C++ and OOP. I wrote the following QuadTree implementation (I didn't wrote the remove object part yet).
please take a look on it and provide feedback, mainly about C++ OOP design, ...
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2
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ds - A directory switcher via tags in Windows command line
I have this repository.
The idea is that there is a file tags sitting in the users home directory, and which contains the tag declarations of the format ...
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Variadic pack class providing operations over types without constructing objects of those types
Sometimes I find I want to call a function passing each of a set of types as a template parameter, but without needing to construct an object of those types. I also may want to do this in multiple ...
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1
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Custom binary file format serializer
I am creating a binary file format to store a series of vectors alongside some metadata. The vectors will be stored at the start of the file which will have a predetermined size, and the metadata ...
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1
answer
64
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Access integer field in network packet
I see three complexities in accessing (reading/writing) integer field in network packet.
Handle endianness. Integer in network packet is big-endian (BE). The host may be either big-endian or little-...
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Multi-threading Class in C++
I wrote a C++ class which can take a vector of functions and their respective arguments and execute them in parallel and return a vector of results from its respective functions.
...
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2
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256
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Search function using SIMD
I wrote a search function, similar to std::find, that uses SIMD instructions. Since I am new to SIMD, I would appreciate comments on other SIMD instructions I have ...
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1
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105
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Any amount bits integer
This class is meant to work exactly as an unsigned integer should work, but it limits the value based on a set amount of bits.
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2
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268
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Code for asynchronous data stream processing with multistage pipelines
I am trying to write some code for processing streams of asynchronous data from multiple sources (Producer Nodes), process them ...
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1
answer
82
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Winsock code for lockstep RTS game
Summary
This is my core networking code for the lockstep RTS game that I am creating. Clients connect to a relay server via a TCP socket, and any packets sent to the relay server are forwarded to all ...
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2
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1
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119
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Binary (de)serialization library for c++
A while ago I posted the code for this library I'm working on, and have refactored the code quite a bit ever since. I would appreciate any feedback in regards to what I have so far to see what can I ...
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139
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A recursive_reduce_all Template Function Implementation in C++
This is a follow-up question for A recursive_sum Template Function Implementation with Unwrap Level in C++ and A recursive_unwrap_type_t Struct Implementation in C++. Considering the answer provided ...
- 3,996
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1
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Find a solution to a puzzle with tile squares
I wrote a C++ program to find the solution to a puzzle board (a custom puzzle from my school). The puzzle board is made from squares - tiles. On the different tile middle, side or corner there are ...
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1
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371
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Event manager for games written in C++17
This is a single header event manager that I'm using in my game.
Disclaimer
I ripped everything from these lovely people:
https://austinmorlan.com/posts/entity_component_system/
C++ Event System - ...
6
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1
answer
387
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Synchonizing queue with mutex
I am trying to syncronize the queue between threads using mutex. I have 2 mil random integers in input.txt file. Main thread reads integers then puts them in queue. Other threads are simultaneously ...
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3
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118
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Convert integer A to integer B using three operations any number of times
You are given a, b and c. You need to convert a to b. You can perform following operations:
Multiply a by c
Decrease a by 2
Decrease a by 1
You can perform these operations in any order and any ...
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1
answer
162
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Pre-calculate attacks in a chess game
I'm writing (or at least trying to write) a chess engine in C++. This is the first time I write code in C++, and I use this project to practice. Anyway, I'm following the general guidelines of a ...
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1
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Large file log parser with less memory footprint
This is a variation of an interesting problem I am currently dealing with. We have a large input file which is being continuously written (size: 10-20G). We need to write a log filter which reads ...
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1
answer
115
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Rubik's cube with simulated annealing [closed]
I wanted to write a c++ program to solve a 3x3 rubik's cube using algorithm named simulated annealing, but failed at it. This idea appeared when I watched this:
https://www.youtube.com/watch?v=...
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A recursive_unwrap_type_t Struct Implementation in C++
This is a follow-up question for A recursive_sum Template Function Implementation with Unwrap Level in C++. As G. Sliepen's answer mentioned, I am trying to implement a recursive struct for retrieve ...
- 3,996
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1
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Remove smiles from string in-place
I have a coding task. Remove smiles from string in-place. Smile is a set of characters starting from ':' and ending with one or more brackets ')' or one or more brackets '('
Example
...
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1
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611
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Simple, fool-proof pattern to execute tasks in parallel
Assume I have a type task_info that stores the task-specific data needed to execute the task. A std::vector of those is built ...
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2
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241
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atomic spinlock mutex class
This here is the follow-up to this question. I was recommended to implement a Lockable type (similar to std::mutex) that can work with ...
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1
answer
122
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A recursive_sum Template Function Implementation with Unwrap Level in C++
This is a follow-up question for A Summation Function For Various Type Arbitrary Nested Iterable Implementation in C++ and A recursive_transform_view Template Function Implementation. In the previous ...
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3
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2k
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Basic RAII spinlock class
I have written the following class that acts as a simple lock for mutual exclusion:
...
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1
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270
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OO simple network time server with changes from a previous code inspection and added Windows support
I put up my SNTP Server code for review here:
SNTPv4 server based on rfc 4330 in C++
a fortnight ago and since then I have made changes as per code review comments and also added support for Windows, ...
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3
votes
2
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92
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text format solution
A firm gave me a small take home assignment which asks you to implement text formatter. Given some text which only contains alphanumerics and spaces (only one space between words), we should align it ...
4
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1
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205
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Tic Tac Toe console game in c++
For learning purposes i wrote a Tic Tac Toe game in object oriented manner.
I have question about storing players in game class - Players(cpu and human) are derived from virtual class players and ...
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2
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150
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C++ Arbitrary Precision Whole Number Class
The class below implements an arbitrarily sized whole number C++ class.
It is wrapped around a bitvector class, which does most the binary heavy lifting.
The basic ...
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0
answers
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2nd Update Per Feedback - C++ Binary Mathematics Class
Per feedback from here, below is the updated bitvector class.
The class was renamed from binary_register to ...
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1
answer
59
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Updated Per Feedback - C++ Binary Mathematics Class
Below is the updated binary mathematics class from the feedback provided here.
It was decided that the project should simply be written with an expectation of using C++20 as the minimum version to use....
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1
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323
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Port Node and TreeBuilder from Python to C++
I am trying to port a TreeBuilder Python class to C++, keeping the structure as close as possible to the original. Here is a simplified Python version: https://onlinegdb.com/I4dg0hCtg
The purpose of ...
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1
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656
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C++ Binary Mathematics Class
I am working on an arbitrary math lib. Below is a class I use to handle the binary mathematics needed for the library.
The class is quite simple. All it does is wrap around a vector of any unsigned ...
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1
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164
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A simple Image class utilizing the XTensor library
I've been teaching myself C++, and I recently created a simple Image class that makes use of the XTensor library. With my Image ...
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std::optional<std::size_t> correct values comparison [closed]
I need to compare two std::optional<std::size_t> variables, considering all possible cases(both std::nullopt or one of ...
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2
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Count the number of ways N queens can be placed on an N✕N chess board
The n-queens puzzle is the problem of placing n queens on an n✕n chessboard such that no two queens attack each other.
Given an integer n, this code returns the number of distinct solutions to the n-...
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Progress bar for reading a file
I have written this class which displays a progress bar reading from the file. In what possible ways could I have gone wrong with this definition? And can somebody suggest what wrongs I am committing ...
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3
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Custom array class in C++
I wrote a custom array class in C++ to suit my personal use case. The main important rule in this project is that no unassigned element is allowed between 2 assigned elements; please review for ...
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C++ Thread Pool with suspend functionality,
This implementation of thread pool that includes support for suspend functionality, which is necessary for refreshing reference data periodically.
I would appreciate your review to ensure that there ...
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2
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C++ Thread Pool Implementation using Lock Free Queue
Topic: C++ Implementation of Lock-Free Queue and ThreadPool classes
In a project I'm currently working on, I need the implementation of ThreadPool along with a thread-safe queue. I've tried ...
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1
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Implementing a `concat` range view using C++ std::ranges
The code below is my first attempt to create a concat "range adapter" using C++20 ranges. It compiles and runs with the latest Clang. The little test ...
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1
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144
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SNTPv4 server based on rfc 4330 in C++
Please review my SNTPv4 server based on rfc 4330
I tested running 3 instances of ntp-check.exe from Galleon systems and 1 instance of Microsoft w32tm - w32tm /stripchart /computer:
No crash!
This is a ...
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1
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General bytes to number converter (c++)
I've written a bytes to number converter for cpp similar to the python int.from_bytes.
It does not make any assumptions on:
The endianness of the input buffer
The ...
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1
answer
245
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A CUDA compatible Vector class
Please review the following CUDA-compatible Vector class in C++.
...
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2k
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Deserialize bytes from the network into a struct
I want to deserialize bytes coming from the network to a struct. The bytes come in big-endian order (BE) and my computer is using little-endian order (LE).
I'd like your advice concerning in order:
...
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875
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Monad object in C++
Have I defined a Monad object for C++? Below is a class called var which I created years ago to implement a lambda calculus like interpreter in C++. The class ...
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any bits unsigned integer [closed]
This is a class that acts as an unsigned integer with a variable amount of bits.
...
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2
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437
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Arduino library to simplify differential drive robots
I've written code for an Arduino library to abstract away some of the underlying logic in a particular way of moving robots. Code is posted after explanations.
I'm not assuming a high degree of ...
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A parse function for text line with fields separated by a comma with the known number and their type, simplified version
simplifying this question, taking most of the comment into considerations, I ended up with this version, looking for some feedback
...
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