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Questions tagged [c++11]

Code that is written to the 2011 version of the C++ standard, sometimes known by its pre-publication name of "C++0x". Use in conjunction with the 'c++' tag.

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3
votes
1answer
48 views

C++11 ThreadPool implementation

A new version of this code based on the provided advice can be found here. I made a simple ThreadPool implementation in C++ using only atomics ( neither ...
-4
votes
0answers
26 views

I m getting a error for this code. Two test cases are giving a TLE. Why? [closed]

This code is working well for majority of test cases, but there's one case where the input vector is only containing zeroes, for which it is not working out, I dry runned the code and it seemed to ...
3
votes
1answer
122 views

Conditional Output Streaming in C++

I stumbled into an idea for creating a simple class that would entirely avoid streaming of any data unless some condition is met. The idea here is that a ...
12
votes
1answer
1k views

Simple NAPI wrapper around self written C++ msgpack, horrible performance

I have written a relatively small msgpack implementation in C++, with performance that is not too bad, so I decided to write a NAPI wrapper around it, but the performance is just horrible. I am ...
2
votes
1answer
138 views

Simple Rock Paper Scissors

I made a Rock Paper Scissors game. It works fine but I would like to know how can I improve it further. ...
7
votes
6answers
2k views

C++ implementation of depth-first search

I got the C++ implementation of depth-first search (DFS) from here and made slight modifications to it. The modified code is as follows: ...
0
votes
0answers
43 views

Optimizing matrix vector multiplication with keyword “register” and unsafe pointer arithmetic

I know this piece of code is quite strange, but it does its job very well performance-wise , reducing the running time of a very computation intensive operation by 3 - 5 times without using a better ...
1
vote
1answer
166 views

dynamic_pointer_cast for std::unique_ptr

dynamic_pointer_cast is only implemented for std::shared_ptr, I need it for unique pointers. The wrinkle is that dynamic_casting ...
8
votes
3answers
964 views

C++ Creating custom vector

I am new to C++ and Data structures, so I have started writing a custom vector as a practice. Please provide critique and advice. I know it is quite long, so thank you very much in advance. I just ...
2
votes
3answers
119 views

LRU Cache Implementation in C++

I am learning C++ by implementing small design problems. I have tried to implement LRU cache and the implementation that I have attached here works fine. However, I am not sure whether my code is in ...
6
votes
2answers
409 views

shared_ptr and make_shared implementations (for learning)

Recently, I've been going through Scott Meyer's Effective Modern C++ and found the discussion on shared_ptr really interesting. I also watched Louis Brandy's ...
1
vote
1answer
58 views

Household Outgoings Calculator (OOP)

I would really appreciate feedback on my OOP Household Outgoings calculator. My objective is to develop in OOP. Have I used good OOP techniques? How can I improve on it? And anything else you might ...
1
vote
1answer
51 views

generating stochastic coloured noise for many oscillators

I have a system of n oscillators which oscillate with time. To each of these oscillators I am adding a fluctuating coloured noise term with a different seed for each oscillator. Here is my code for ...
1
vote
1answer
39 views

Priority scheduling algorithm using std::vector

I'm learning priority scheduling algorithm and trying to implement it using std::vector. But the current performance of my code that's partially implemented is not ...
9
votes
1answer
3k views

Deck of Cards written in C++

I created a deck of cards that I used in a BlackJack game. I stripped out my black jack logic and left just the Deck, card and minimum dealer. The deck class is there because I want to create ...
3
votes
1answer
59 views

Random index generator in C++

I have a training dataset from which I want to draw samples in a random fashion such that all samples are used before getting randomly shuffled again. For this reason I implemented a simple random ...
0
votes
1answer
46 views

C++ Error/exception handling [closed]

I know the following code are horrible, so I'd like a review. Criticism are welcome. I want to know what went wrong, and how I can avoid the same mistake in the future. Version 1 ...
7
votes
1answer
173 views

Modular synthesizer framework for C++

While working on a much more complicated audio application, I was thinking about modular synthesizers, and whether it could be made simple to build a C++ application that implemented a modular ...
2
votes
1answer
75 views

An Implementation of Two Dimensional Plane as Monochromic Image Container with std::unique_ptr in C++

I am trying to implement a monochromic image container with std::unique_ptr. The example usages The example usages is as below. ...
13
votes
5answers
2k views

Simple dataset class in C++

As part of my training, I implemented a dataset class in C++ that allows me to create synthetic datasets to get more familiar with features that C++ offers such as object oriented programming. This ...
2
votes
2answers
205 views

My String Class

Here's my very basic String class. This is my first attempt, to try to design and write a basic String class in C++, without using the absolute new features provided by newer C++. ...
7
votes
2answers
412 views

Using c++11 random header to generate random numbers

I'm new to programming. I have a question regarding the usage of c++11 random header to generate random numbers. I tried to learn it, but was unsuccessful. Recently, I've tried the following approach ...
1
vote
1answer
40 views

Find the next number with all different digits, and no 0 or 2

Task Input - integer number (year) Print one number - the next year, in which all digits are pairwise different, and there are no digits 2 and 0. If there will never be such a year, print ...
3
votes
1answer
83 views

Grade Calculator (New OOP Version from one previous)

I'm trying to develop an OOP way of thinking. I was hoping someone would be kind enough to spare some of their valuable time to review my Grade Calculator OOP program. As always, I'd like to know what ...
4
votes
1answer
308 views

Noughts & Crosses UML Class Diagram

I was told I need code in order for someone to review my UML Class Diagram for my Noughts and Crosses console application. I would like to know if it's intuitive, whether you could make a program ...
3
votes
2answers
806 views

Tic Tac Toe (New OOP Design)

Would someone be able to review my latest OOP design of my Tic Tac Toe / Noughts & Crosses program? I’d like to know what I’ve done well and whether I could improve the OOP Design. Many thanks in ...
1
vote
2answers
116 views

Loan System Calculator

I would really like feedback on this Loan System Calculator. My goal is to get better at OOP design and would like to know if I've done a good job in making this scenario OOP? Could I have structured ...
4
votes
1answer
100 views

wrapper class for random access iterator to hide template method implementation from header file

I have a set of template functions that have itrator types as template parameters, so can be used with any kind of iterators. std::find can be a good example. Also ...
6
votes
1answer
70 views

External sorting with async read and write

I wrote this code for a home task, and received some negative feedback. Though I really appreciated the reviewer, but I disagree when he said I use auto disorderly, ...
2
votes
2answers
94 views

Noughts & Crosses (Tic Tac Toe) OOP Design

I was wondering if someone could review my object oriented design for my Noughts & Crosses program. Yesterday I posted a procedural version and now I've done an OOP version. Can someone tell me ...
1
vote
2answers
117 views

Either monad in C++11

I'm using C++11 with https://github.com/SmingHub/Sming. It has no support of std lib or exceptions. I wanted to use Either monad ...
6
votes
1answer
119 views

Graph implementation with Dijkstra

So, here is the code: ...
5
votes
4answers
778 views

Tax Calculator (using OOP techniques)

I was wondering if you'd be able to review my basic Tax Calculator that incorporates OOP techniques. I'd greatly appreciate it if you didn't mention about my variable naming convention i.e. Hungarian ...
7
votes
2answers
347 views

Doubly Linked List Data Structure ADT in C++

I'm trying to implement a Doubly Linked List data structure in C++. Please give me suggestions on how this code can be improved. Try to remain in C++11 because that's what I know atm. ...
5
votes
1answer
97 views

C++ Queue Circular Array Implementation

I'm trying to implement a queue data structure in C++ using a circular array. Please give recommendations on how I can improve this code. Also, is my array growth strategy good? I'm doubling the array ...
7
votes
2answers
486 views

Validating ISBN-10s, with or without dashes in C++11

Description A regex-based method of validating ISBN-10 as strings. Can be digits (or 'X' at the end) only, or with dashes, according to those of English-speaking publications (which are defined by the ...
5
votes
3answers
374 views

Personal Finance Management Tool (OOP version)

CodeReview Community! I was hoping you'd be able to review my basic OOP program. Last year I did a strictly procedural one and now I’ve incorporated OOP techniques. Ignore the commented out piece of ...
11
votes
5answers
2k views

Grade Calculator (using OOP techniques)

I was wondering if you'd be able to review my basic C++ Grade Calculator I based off the following scenario. I would like to know what I've done well vs what I haven't done well. Many thanks in ...
4
votes
1answer
95 views

Kernel Interpolation C++

Purpose of this program is to calculate the velocity of ng = nxnynz particles at the Lagrangian points from the values at regular grid nodes. How can i speed up this calculation? I hope to receive ...
5
votes
3answers
156 views

A FIR filter using Modern C++ features

I'm diving into "modern CPP", with wide usage of templates and containers, So I started with FIR filter. In signal processing, a finite impulse response (FIR) filter is a filter whose ...
4
votes
3answers
151 views

Calculation of Energy Spectrum using C++

My purpose is to calculate the energy spectrum of three-dimensional turbulent flow from three velocity components. The calculation is too expensive. Therefore, I hope the calculation time can be ...
4
votes
1answer
85 views

Const wrapper for iterator

Edit: added clarification for why I want this, and updated the code since I don't have any answers yet I have a C++11 array-like class which (can be) a wrapper around a random-access iterator. Index-...
6
votes
3answers
149 views

C++ WAVE file reader: library-like structure, safety, readability

Introduction I have released a small a WAVE file reader with a mutex/lock-based caching mechanism, as a header-only library. The general purpose of the library is to read WAVE files into floating ...
3
votes
2answers
168 views

Using Token Bucket to rate limit function calls

This program is my attempt at solving the below problem: We have a function which is going to be called by multiple threads. The problem is to find a way to limit the number of times this function is ...
2
votes
2answers
367 views

Reactor pattern in modern C++. Please comment on coding improvements to be done

The reactor possesses its own thread to wait for messages in an event loop. Users should be able to start or stop the reactor at any point. These two operations are not required to be thread-safe. ...
6
votes
2answers
330 views

Templated palindrome

I'm trying to implement a palindrome check for each element in a vector and return a vector with only the palindromes. This should work for different type .e.g strings int vector of ints.I have done a ...
2
votes
0answers
50 views

Producer consumer with shared buffer in C++11

My C++ knowledge is outdated and I'm trying to learn about C++11 threading. I'm working on a SoapySDR driver where the client acquires a buffer it wants to write to and the hardware transmits from ...
6
votes
1answer
120 views

Manage lists of executable id

I need to manage lists of executables Id. Each executable belongs to a capacity (obviously the list of capacities in the code is just an example). For every capacity we need to be able to find the ...
2
votes
0answers
27 views

AEC-to-WebAssembly compiler

Now that my new compiler is capable of compiling programs such as the Analog Clock in AEC, I've decided to share the code of that compiler with you, to see what you think about it. File ...
4
votes
1answer
438 views

Doubly-linked list with iterators

Writing a double-linked list seemed like a good practice for understanding it. I tried to fix all the errors that were pointed out to me in the last question, as well as add new functionality. In ...

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