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by Jonathan100
Linked list of structures
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| Hello! in C we define node : struct Node { int data; struct Node* next; }; Does next pointer is pointing to the data of the next node? If i... |
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Aug 30, 2022 at 5:38am
[9 replies] Last: it is not mean that next pointer also point to the data? C++ allows ... (by mbozzi)
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by ElusiveTau
Floating-point comparison for mortals
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| I see a menacing dark cloud looming on the horizon and I wonder why other beginners aren't as concerned as I am. Have they ever had to deal with floating poin... |
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Aug 30, 2022 at 2:00am
[9 replies] Last: #include <iostream> #include <limits> #include <iomanip> #include <cm... (by JLBorges)
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by Silver29
Problem with delete function.
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| So our prof tasked us to delete a block of array. Technically in this case, to delete GroceryList_fin or the first block in the GroceryList_fin array. Our ... |
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Aug 28, 2022 at 6:34am
[7 replies] Last: Your assignment operator doesn't assign . You probably should remove... (by kbw)
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by Geckoo
override specifier
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| Hello. In the next code, must be written the keyword override in the derived classes or not? It seems to me that the virtual keyword in the base Class is en... |
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Aug 27, 2022 at 4:30pm
[8 replies] Last: Re. virtual destructor When a base class is intended for polymorphic ... (by JLBorges)
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by Silver29
I have a lot of problems.
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| So basically, our professor told us to do: Problem 1: Create a class for the fruits and the vegetables. Each class must have a constructor, deconstructor, copy... |
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Aug 26, 2022 at 3:57pm
[8 replies] Last: "Create a class of vegetables ..." It's been a long day: I just misre... (by lastchance)
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by Silver29
Why is this not working?
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| I don't know why my code doesn't work and my reference code works. I am trying to copy this code by making my own code which is now directly similar to t... |
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Aug 25, 2022 at 3:18pm
[6 replies] Last: Don't use string.h for the include - it's string. Hey! Did not see t... (by Geckoo)
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by colt
Destructor causes memory exception
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| Hello. In the program I am creating, I created a destructor in a certain class, one that calls delete to remove two dynamic allocated array from two different u... |
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Aug 25, 2022 at 8:21am
[12 replies] Last: An important question is whether you have "legacy" code that does not... (by seeplus)
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by SubZeroWins
static inside a class, inside a method
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| If I call a method in a class a million times but I don't want it to create and delete the variable a million times, what to do? Can I add static to it and it w... |
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Aug 24, 2022 at 1:55pm
[19 replies] Last: At the end pop off the function and the static still stays on. But w... (by Peter87)
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by PhysicsIsFun
copy constructor and initialization (1,2)
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| Greetings! I don't understand why the copy constructor does not work for initializing an object with a return value of a function. Example, a class "person": ... |
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Aug 24, 2022 at 9:20am
[29 replies] Last: An issue with copy assignment is that you'll probably also then need a... (by seeplus)
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by learner999
Need a help slicing 2D vector
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| Hello everyone, I need a help slicing a 2D vector. I guess it is easy but since I am complete beginner I could nout achieve to sclice them. I have one 1D vecto... |
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Aug 24, 2022 at 6:37am
[4 replies] Last: std::slice doesn't work on a vector, only on a valarray: https://en.cp... (by deleted account xyzzy)
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by cplus2303
' ' is not a member of 'std'
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| I don't know how to fix this error error : 'answer' is not a member of 'std' #include <iostream> #include <vector> #include <string> class Triangle{ pr... |
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Aug 23, 2022 at 5:58pm
[14 replies] Last: Monument Valley is ethereal - quiet delivering good vibes. One of its ... (by Geckoo)
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by Geckoo
Another Guess My World
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| Hello. I continue to increase my understanding of the OOP principle using C++. I made another game - Guess My Word. Not a big revolution - just another exercise... |
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Aug 22, 2022 at 10:34pm
[14 replies] Last: But it seems to me that I did that before... True, but if your progra... (by kbw)
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by NowIC
VS Code and multiple files (libraries)
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| Hello. I setup VS Code to work with gcc and gdb (Windows 11 with mingw64). The compile and debug with 1 file works fine. Now, how do I setup the tasks.json and ... |
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Aug 21, 2022 at 2:42pm
[no replies]
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by JamieAl
How to update Eigen matrices correctly in a solver?
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| I have an iterative solver where it solves a PDE by given an initial guess and updating it until a convergence criteria is met. My question is embarrassingly si... |
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Aug 20, 2022 at 6:06pm
[14 replies] Last: @TheIdeasMan I discovered what a PDE is Partial Differential Equation... (by JamieAl)
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by bydrachen
Current Usage of Copy and Move Constructors
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| I was following a course from Udemy. But I lost my interest in the c++ language 3 months ago because of these copy and move constructors. As far as I know, they... |
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Aug 20, 2022 at 5:58pm
[5 replies] Last: It's hard for me to learn them and probably because of the instructor... (by deleted account xyzzy)
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by learner999
How to return multiple data from a function
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| Hello fellows, In a function , I do some mathematical and obtain a vector , a double value and one 2D matrix. I need to use all these three outputs later in a... |
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Aug 20, 2022 at 2:16pm
[7 replies] Last: #include <vector> #include <tuple> using Array = std::vector<int>; u... (by keskiverto)
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by learner999
Possible reasons for the loop that does not call a function more than once
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| Hello fellows, When I call the Func1 in the loop in Func2, it does not call the fucntion more than once, ie; the loop does not iterate. In Func2, in Func1 , w... |
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Aug 19, 2022 at 9:27pm
[5 replies] Last: Thank you so much for all these replies. @zapshe, thank you so much. Y... (by learner999)
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by cplus2303
Bracket problems
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| I think there's a problem with my Bracket alignments or is there any problem in my if -else statement positions? #include <iostream> #include <cmath> #includ... |
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Aug 19, 2022 at 9:40am
[3 replies] Last: Thank you guys you solved my problem!!! very much appreciated :) (by cplus2303)
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by PhysicsIsFun
Cyclic dependencies and forward declaration
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| Hi guys, I have a question to the following. Imagine two classes A and B that use one another. The naive approach: have the respective header files include ... |
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Aug 19, 2022 at 9:29am
[10 replies] Last: This, and a lot of other design issues, are discussed in this great bo... (by seeplus)
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by Wedde
Handle cos, sin function.
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| I dont believe i get the correct results. Is something wrong with the way i use the cos and sin function? When the angle i 45 degree the x y velocity should be ... |
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Aug 18, 2022 at 9:13am
[5 replies] Last: #include <iostream> #include <vector> #include <cmath> //double posi... (by lastchance)
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