General C++ Programming - C++ Forum

by Ganado

I need even numbers in each row using array as a output but its showing me the error ?

Please edit you post and use code tags to format your code. [ code][ /code] What is the error?...

[3 replies] Last: You don't provide any test data, so this is untested but does compil... (by seeplus)

by thmm

Create and manipulate the Linked List Data Structure in C++

Don't do it. C++ has a std::list and std::forward_list. If you have to any search engine will give y...

[2 replies] Last: There is no way to quickly explain it. Have a look at this article: ht... (by thmm)

by JUANDENT

enable_if fragment not working!!

Hi, I have a short code sample using enable_if that does not want to compile. Can somebody...

[6 replies] Last: So the question is whether the programs we're discussing violate the o... (by mbozzi)

by Ganado

I want to save this so I can reference how to use code tags

You're passing 'mat' (a single double, despite its name), instead of 'arr' (a 2D array of doubles). ...

[1 reply] : Here's some reading for how to use code tags as well as other tags you... (by deleted account xyzzy)

by DraxDomax

Algorithm shopping: Economic object transfer (lossless compression)

This isn't really about C++ but I imagine the fine fellows here are probably my best bet! Proprieta...

[7 replies] Last: OP will have to port the algorithm themselves to the platform, that's ... (by helios)

by Aaron Vienneau

bad_weak_ptr when using shared_from_this in ctor

Hi, When I run the example program below (just a MVP of my actual issue), I get a bad_weak_ptr ex...

[2 replies] Last: Thanks! Good point about having no control over the objects allocation... (by Aaron Vienneau)

by sinasb

Derefrencing Null pointer and buffer overrun warnings

Hello! I have the following code that works properly most of the time but rarely outputs garbage. I...

[15 replies] Last: The problem with memory corruption is that the error is usually not wh... (by dhayden)

by frek

Writing and reading from a file using fstream

In this incomplete project I happen to firstly write to a file and then extract data (read) from it,...

[8 replies] Last: .seekg() sets the get (read) pointer to the beginning. May not be need... (by seeplus)

by yucecoder

pthread cout issue

I have a multithreaded program. At the code below, the first cerr gets printed, but cout at the end ...

[2 replies] Last: If you want us to be able to help you, you need to post more code than... (by JRManx)

by learning123

Process finished with exit code 143 (interrupted by signal 15: SIGTERM) error message

Hi! I wrote a program using dynamic arrays and got the error message "Process finished with exit cod...

[4 replies] Last: Thank you both! Appreciate your help (by learning123)

by joe2014

RC4 encryption/ decryption

Hey guys, So, I want to implement the RC4 encryption but everything I found online was not quite...

[4 replies] Last: Thank you guys so so much! (by joe2014)

by JUANDENT

Trouble with simplest module example in C++ 20

Hi, Using VStudio 2019 v 16.9.1 with C++20 support it does not compile correctly. My interface...

[3 replies] Last: Current Visual Studio 2019 (16.9.2) support for C++20 modules is spott... (by deleted account xyzzy)

by jake john

Sudoku Puzzle Checker

This program will partially check the validity of a given sudoku puzzle. The user will enter the pu...

[10 replies] Last: déjà vu http://www.cplusplus.com/forum/general/276768/#msg1194648... (by Ganado)

by RicoJ

Const Rvalue reference becomes Const lvalue?!

Int&& i is a lvalue object, of rvalue int reference type. Below works as expected void foo(int&&){...

[5 replies] Last: Yes, it is a constness issue. [quote=mbozzi]You've attempted to make a... (by mbozzi)

by winterx0

Tarot Card Program Design

Hello! I am working on a final project for my intermediate C++ class. For the project concepts to be...

[3 replies] Last: I was thinking of somehow trying to figure out how to implement multi... (by seeplus)

by missesIrby

i can't get this programme to work

I can't figure out what's wrong, so could any of you please help me.Thank you all in advance here i...

[5 replies] Last: #include <iostream> int main() { const size_t MAXPER {500}; std:... (by seeplus)

by JUANDENT

Defining my own heap isn't working - is my signature correct?

Hi, I am defining my own heap like so: class MyHeap { public: void* allocate(size_t siz...

[4 replies] Last: Thanks! (by JUANDENT)

by MALPY

problem including files or building

Hello, I have recently run into a problem regarding including files or building project in cpp. ...

[3 replies] Last: I have to add that i can compile everything using gcc directly on the ... (by MALPY)

by AnabelSylvester

How do I delete a current node in a linked list in c++? I have studied many sites, but my compiler refuses to accept anything

this is my first question on StackOverflow, so please forgive me if I did not fully indicate somethi...

[2 replies] Last: Try this: #include <iostream> using namespace std; struct element ... (by seeplus)

by FluxT

Need help ASAP

Calculate the average mark with two decimal symbols. Generates school grades until the generated ta...

[2 replies] Last: What part are you having difficulty with? Do you know how to calculate... (by seeplus)

General C++ Programming - March 2021 (Page 3)

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