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.
9,372
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C++ Mock Library: Part 6
Parts
C++ Mock Library: Part 1
C++ Mock Library: Part 2
C++ Mock Library: Part 3
C++ Mock Library: Part 4
C++ Mock Library: Part 5
C++ Mock Library: Part 6
Side Note:
I will say the processes of ...
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Banking System console app in C++
I built a banking system in C++ (still a lot of features to do but (I decided to post it here to see what can I change so I wont make those mistakes in the future).
User header and c++ files
Header
<...
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52
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C++ Mock Library: Part 5
Parts
C++ Mock Library: Part 1
C++ Mock Library: Part 2
C++ Mock Library: Part 3
C++ Mock Library: Part 4
C++ Mock Library: Part 5
C++ Mock Library: Part 6
Overview
So brief overview:
Part3 was the ...
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C++ std::optional implementation
Took a shot at implementing a subset of std::optional functionality. A lot of core features are there but some things like converting constructors, etc are missing ...
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C++ Structural Requests System with Payload Management
First things first, I'd thank Mr. G. Sliepen and Mr. Davislor regarding their help in the previous questions (C++ System data transfer design) (C++ System data transfer design - Following 1), given ...
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C++ Mock Library: Part 4
Parts
C++ Mock Library: Part 1
C++ Mock Library: Part 2
C++ Mock Library: Part 3
C++ Mock Library: Part 4
C++ Mock Library: Part 5
C++ Mock Library: Part 6
Description:
In part 3 I described how I ...
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1
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Temperature of a Lennard-Jones system
Are the formulas used in getTemperature() and setTemperature() correct?
...
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1
answer
45
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C++ Mock Library: Part 3
Parts
C++ Mock Library: Part 1
C++ Mock Library: Part 2
C++ Mock Library: Part 3
C++ Mock Library: Part 4
C++ Mock Library: Part 5
C++ Mock Library: Part 6
Define normal use case patterns:
The next ...
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votes
1
answer
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Type-safe number serialization-deserialization
I have written this code for serializing and deserializing integer and floating point numbers to/from vector/array of bytes. The aim of the code is to provide a simple interface to use, but make it as ...
- 55
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1
answer
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Finding the kth smallest number where all (hexadecimal) digits are different
I'm mostly trying to understand why the simpler char array mask below (to track which digits have been already used) is much ...
3
votes
1
answer
107
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C++ Mock Library: Part 2
Parts
C++ Mock Library: Part 1
C++ Mock Library: Part 2
C++ Mock Library: Part 3
C++ Mock Library: Part 4
C++ Mock Library: Part 5
C++ Mock Library: Part 6
Removing redundant MOCK_SYS usage
After ...
- 94.3k
6
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1
answer
193
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C++ Mock Library: Part 1
Parts
C++ Mock Library: Part 1
C++ Mock Library: Part 2
C++ Mock Library: Part 3
C++ Mock Library: Part 4
C++ Mock Library: Part 5
C++ Mock Library: Part 6
Note:
If you see an extra ...
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1
vote
2
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Minimalistic implementation of Leapfrog integration algorithm (2)
Please review this C++ listing of an implementation of Leapfrog integration.
This C++ listing is rewritten according to this review.
...
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13
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3
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A Simple Tetris game made with C++ and ncurses
I made a Tetris game with C++ and ncurses. The game implemented the most core rules of the game such as 7-bag system or familiar rules you know about the Tetris, but lacks some features - for example, ...
- 131
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2
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C++ std::any Implementation
Took a shot at implementing std::any. I think this should cover a majority of the functionality of the standard version, except there may be some missing auxiliary ...
- 319
2
votes
1
answer
110
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Minimalistic implementation of Leapfrog integration algorithm
Please review this C++ listing of an implementation of Leapfrog integration.
Was the algorithm implemented correctly?
...
- 575
8
votes
4
answers
2k
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Plotting the Mandelbrot set efficiently
This is my Mandelbrot set program - it includes Smooth Coloring, perodicity checks, and my approach to biomorphs.
I know of Edge Detection, but I couldn't find a simple explanation that I can ...
1
vote
1
answer
55
views
safe numeric type converter
I have written a function for casting between built in numeric types. I built it to check if the source value is within the range of the destination value, and to provide a nicely legible error if not....
4
votes
2
answers
108
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Find largest sum not involving consecutive values
There is a question to basically find the largest sum in an array, such that no two elements are chosen adjacent to each other. The concept is to recursively calculate the sum, while considering and ...
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1
answer
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Market Portfolio Binary Search Tree [closed]
I'm trying to solve the following problem here:
First line of input contains the number of days D. The next d lines contains a character c and a number x. If c is B, then buy stock . If c is S, then ...
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2
answers
211
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C++ std::shared_ptr implementation
Took a shot at implementing std::shared_ptr, with a thread-safe refcount and weak count. Didn't do weak_ptr, I'm doing this for ...
- 319
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vote
1
answer
76
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Process comma separated input and check format
I have to read console input and store data in the vector of structs. In case of any data format violation I have to print "Malformed Input" and return <...
- 397
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2
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217
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A memory leak-free RAII wrapper around two raw pointers
As a practice of implementing RAII-enabled class, I prepared a class called DynamicWallet that wraps around two raw pointers. I am well aware that using smart ...
- 331
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0
answers
40
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Reusable storage for array of objects V4
Here is a thirdfollow up on Reusable storage for array of objects, Reusable storage for array of objects V2 and Reusable storage for array of objects V3, taking into account the provided answers.
The ...
- 299
4
votes
2
answers
535
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O(nlogn) Lexicographically minimal rotation code but tle on this particular case
Based on a small suggestion here , this code tries to find lexicographically minimal rotation (question) by successively comparing two adjacent substrings in the very left , that can potentially give ...
- 129
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0
answers
49
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C++ registry class which manages game object, components and systems in an ECS
So this is my header file (registry.hpp):
...
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2
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1
answer
96
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C++ Chess Engine - Initialization of Magic Bitboard Attack Tables
I've just completed the generation of magic bitboard attack tables for bishops and rooks in my C++ chess engine.
Main Questions
The functions generateMagicNumbers()...
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1
answer
45
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Reusable storage for array of objects V3
Here is a second follow up on Reusable storage for array of objects and Reusable storage for array of objects V2, taking into account the provided answers.
The following code should be compliant at ...
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3
votes
1
answer
51
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Reusable storage for array of objects V2
Here is a follow up on Reusable storage for array of objects, taking into account the provided answers.
The following code should be compliant at least with gcc, <...
- 299
4
votes
3
answers
311
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C++ custom string class implementation
I recently had an interview where I was tasked with implementing a custom C++ string class without using the STL. The interviewer provided the function signatures and variable declarations, specifying ...
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2
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2k
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CAT: Cat Approved TUIs
Cat
Hello everyone! I am working on this TUI framework which aims to abstract the ncurses library. I was wondering how understandable it is, and what I can improve! Any feedback is welcome!!
My ...
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4
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1
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104
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C++ custom vector class implementation
I've developed a custom vector class in C++, complete with functionalities like assignment, push_back(), emplace_back(), pop_back(), clear(), and size(). I would greatly appreciate any feedback on ...
- 111
2
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1
answer
40
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Comparison of Named parameters and the Java Builder pattern in C++
OK writing a C++ wrapper on top of openSSL.
Setting up the SSL_CTX* object. There are a whole bunch of extra functions to specify functionality on how this object ...
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1
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0
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56
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Binary Search Tree Universe
In the world of Binary Search Tree (BST) enthusiasts, where collecting and trading BSTs is a craze, you have a beloved BST with n nodes. In this scenario:
(a) Identifying Swapped Nodes and Common ...
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2
answers
372
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Reusable storage for array of objects
My goal is to have a memory pool non-template class that is used to store arrays of objects.
The same memory pool object must be reusable for a different array (difference size, different type and/or ...
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1
answer
112
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Parsing Tokens in a Toy Interpreter
I'm working on a homework writing a toy interpreter. All the expressions in this language are prefix expressions. The language has a lot of lexical tokens and I wrote code as follows:
...
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2
answers
540
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std::chrono compatible clock using CLOCK_MONOTONIC_RAW
We're using std::chrono::steady_clock for most of our internal queues and relative timings. However, we're on a POSIX platform and ...
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4
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2
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79
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C++ Neuron Spike Raster Deserializer
Please help me establish a solid foundation for this computational neuroscience project. I'd like to make sure I'm moving forward with something reasonable before I begin tackling the more complex ...
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0
answers
74
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1
vote
0
answers
69
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An Updated recursive_transform Template Function Implementation in C++
This is a follow-up question for A recursive_transform_view Template Function Implementation and A recursive_transform_view Template Function which returns a view in C++. In those implementations ...
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1
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75
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Program to find all possible legal words and their scores in a Wordfeud (or Scrabble) game
To anyone who doesn't know WordFeud, but is familiar with Scrabble, WordFeud is just a variation with different letter bonus placements.
The code below is complete and runnable. Given a WordFeud board ...
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2
votes
1
answer
50
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Find perfect and amicable numbers
I've been playing with perfect, amicable and social numbers lately, and created a class for investigating these. At present, it has functions to return the perfect and amicable numbers in a specified ...
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5
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1
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398
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Print abcabc... in three threads
I want to implement the following case
Input - integer number n
Start 3 threads. The first thread prints 'a', the second prints 'b', the third prints 'c', then the ...
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votes
1
answer
172
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C++ Readers-Writer Lock using Asio's Strands
The locking mechanism is implemented in the class RW_Lock.
The saved_async_completion_handler structure is used in ...
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1
vote
1
answer
52
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Counting number of time frames in a simulation trajectory file
I have written a function in c++, which accepts an "ifstream" object (file) to read from and a string to match a header token in the file. This way I am counting how many times a token ...
3
votes
1
answer
988
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Knock down tall buildings
I'm trying to solve the following problem:
As you know Bob likes to destroy the buildings.
There are N buildings in a city, ith building has ai floors.
Bob can do the following operation.
Choose a ...
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1
answer
57
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C++ compile time polymorphism example [closed]
I found an example using std::variant to provide compile time polymorphism as a possible optimisation to runtime polymorphism in 'Software Architecture Using C++', https://github.com/PacktPublishing/...
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4
votes
1
answer
108
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Packet generation and consumption
I have the following simplification of a program which consists of 2 threads. One thread pushes packets to the back of a deque while another waits for user input before performing a "heavy" ...
- 379
5
votes
1
answer
398
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Noughts & Crosses (tic-tac-toe) revisited (using C++20 modules)
This is a development of Nought and Crosses (tic-tac-toe) in C++ a learning project in C++. This time using C++20 modules. As before, any suggestions on improvements in style, clarity (or anything ...
- 501
2
votes
2
answers
75
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Binary search tree with Iterators
One more BST implementation with iterators added. Did not manage to find another implementation with iterators and it is my first attempt at implementing them so thought to check on your opinion:
<...
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