please wait
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by JamieAl
Error: cannot convert ‘const Scalar*’ {aka ‘const double*’} to ‘const std::complex<double>*’
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| I am trying to solve for a linear system of equations x = A\b and I am using the following expression in Eigen: x = A.colPivHouseholderQr().solve(b); ... |
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Aug 7, 2022 at 10:26pm
[3 replies] Last: Thanks for the help. I was wondering what is the difference b/w rei... (by JamieAl)
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by nvthielen
Addmenus
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| Hello, Cplusplus. I have a problem when I Append the Menu Item a get an error the argument of type const char" is incompatible with parameter of type "... |
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Aug 7, 2022 at 7:28pm
[4 replies] Last: sold the puzel, void AddMenus(HWND hwnd) { HMENU hMenu = Crea... (by nvthielen)
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by LukeProducts
Write object into file
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| Hello guys, i am working on a simple password manager and i want to write multiple struct Credential objects into a bin file. #include <stdio.h> #include <s... |
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Aug 7, 2022 at 1:39pm
[6 replies] Last: Thanks, thats good to know ive already thought that too. I dont suppos... (by LukeProducts)
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by ruzip
Detect Num Lock key press/up and other special keys in GLUT/FREEGLUT
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| I can't seem to find any documentation on how to detect other special keys like Num Lock, Scroll Lock, Pause, PrintScreen when they are hit/key up in Glut/FreeG... |
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Aug 7, 2022 at 4:13am
[7 replies] Last: Thanks guys for the additional info. The workaround you mentioned ne... (by ruzip)
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by Bubbles0012
Shift words
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| Hi if I have a 2d array , how can I shift either left or right, for example: xhellofreind xxxhellofriend |
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Aug 7, 2022 at 1:50am
[4 replies] Last: 2d is still a solid block. so its fine. 2d dynamic, need to loop it ... (by jonnin)
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by alexdieter
Assignment with arrays
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| Hello, I need help with this assignment and I have zero ideas what to do and how to even start. Could anyone help at all. (1) Function Algorithms for Array El... |
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Aug 6, 2022 at 9:43am
[2 replies] Last: your own programming interface and algorithm Maybe :) : #include... (by seeplus)
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by alexdieter
How to assign 2D array with random numbers
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| How do I assign 2D array with random numbers. I need to display this C1 C2 C3 C4 C5 R1 2 3 4 1 6 R2 3 3 4 4 5 R3 4 ... |
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Aug 6, 2022 at 8:51am
[2 replies] Last: #include <iostream> #include <random> #include <utility> #include <a... (by seeplus)
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by LukeProducts
Overflow while converting domain name to ip address
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| Hello all, ive just written a function to tell the ipv4 of any domain like f.ex "google.com", and for linux, it yust works fine. But now i shwitched to windows... |
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Aug 5, 2022 at 4:35pm
[3 replies] Last: As this topic is marked with a green tick, it looks like the OP has so... (by seeplus)
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by Worldtreeboy
some function call does not require parentheses?
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| //Fig. 13.9: Fig13_09.cpp //Creating and testing user-defined, nonparameterized //stream manipulator #include <iostream> using namespace std; //bell manipu... |
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Aug 5, 2022 at 1:42pm
[6 replies] Last: if you want to circle back to the big question, there are several othe... (by jonnin)
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by frek
Fish task
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| I have doubt if my understanding about the task is right or not since I don't get the score I want. The task says: You are given two non-empty arrays A and B... |
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Aug 4, 2022 at 6:36pm
[5 replies] Last: the code that I'm not going to give you Thank you for that. Only unde... (by frek)
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by Andre G
C++ Reference to read offline?
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| Good evening everybody! I was wondering if there was any C++ reference that can be downloaded to read it offline? The reason why I am asking this is becau... |
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Aug 2, 2022 at 8:35pm
[5 replies] Last: Thanks! Like I said, I am new to this, so I did not know to look unde... (by Andre G)
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by JUANDENT
why some callables require std::forward and others don't?
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| Hi, I am grabbing this code from cppreference.com and cannot understand why std::forward is used sometimes on the callable and sometimes it isn't... For... |
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Aug 2, 2022 at 6:41pm
[5 replies] Last: Essentially, although the "function" being called (the Callable ) is ... (by mbozzi)
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by KaiTang
Strncmp consumes a lot
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| hello everyone, I encountered a problem. When I was performing string matching, I used the strncmp function. I found through the flashgraphs that it consumed a ... |
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Aug 2, 2022 at 12:09pm
[6 replies] Last: comparison of strings is one of the most expensive things we do regula... (by jonnin)
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by frek
Objects initialized by default
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| As far as I know, static or const objects are initialized by default. Is it true? And is there any other type of object which is by default initialized? PS... |
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Aug 2, 2022 at 5:35am
[12 replies] Last: Could you write what you've gathered, for example, on a conclusion li... (by TheIdeasMan)
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by PeteDD
multiple definitions of class instances
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| (I can't delete this post...) but you can ignore it if you like since, as you can see from the next post, I fixed it. I have tried for several hours to figur... |
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Aug 1, 2022 at 6:21pm
[6 replies] Last: Brilliant Ganado! That solved a lot for me! Thanks! (by PeteDD)
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by Worldtreeboy
Difference between virtual, redefining and overridden function?
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| These 3 seems the same because the derived class will have a same function that is overriden? |
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Aug 1, 2022 at 7:35am
[1 reply] : https://en.cppreference.com/w/cpp/language/virtual [quote=cppreferenc... (by TheIdeasMan)
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