Beginners - C++ Forum - February 2020 (Page 3)

by theleonicking

create sized dynamic array of class private members

For my project I'm working on, I have to create a dynamic character array to model my categories lik...

[4 replies] Last: I have and my code didn't look like this in the submission section. Al... (by theleonicking)

by theforgottenone4

Help with looping a set of code

Hello, this is a code snippet of something that I need help with. So, essentially, I need to loop ea...

[8 replies] Last: I got it! Thanks so much, Andy! Your code is working perfectly and I'm... (by theforgottenone4)

by YodaD

Output char into square

Write your question here. I am trying to output a square that is the same height and length as the u...

[4 replies] Last: Thanks so much @againtry (by YodaD)

by Thatguy101

Functions being ignored

-Preview option showed up blank- I'm new to c++. I learned tutorials from learncpp and was practici...

[2 replies] Last: Thanks a lot man. I was thinking over it for a while. Didn't know what... (by Thatguy101)

by SeanJohn22

Confusion with if/else statements

Hello. I am having an issue with my code that I cannot figure out. I have entered an equation and de...

[2 replies] Last: Yes, that looks much cleaner and easier on the eye. Thank you very muc... (by SeanJohn22)

by alexas

Rotate a 3D rectangle in z axis in C++ when rectangle is described with arrays

I am learning C++. I need a simple example of how rotation can be done (probably using rotation matr...

[10 replies] Last: Thank you , now I have better understanding - thanks again! (by alexas)

by topman20000

member function "Quest::PlayQuest" may not be redeclared outside its class

Thanks for any guidance, Terribly sorry in advance if things look messy or bulky. I'm trying to i...

[1 reply] : Hello topman20000, The comments in the code should explain everything... (by Handy Andy)

by sindhu05

Compiler allowing allocation of memory to a garbage pointer index

This is a program of jagged array. #include<iostream> using namespace std; void display(int...

[2 replies] Last: To me, the root cause of your error is confusion about user-friendly i... (by dhayden)

by lacked2

Program crashes when trying to initiate a thread in while loop

I want to create a new thread inside a while loop but it makes the program instantly crash on start....

[3 replies] Last: Sorry i forgot to mention i already thought it mightve been because of... (by lacked2)

by killingthemonkey

Range Based For - Out of Range Error

OK, I'm working my way through a Udemy course. The instructor has just covered range based for loops...

[2 replies] Last: Thank you, againtry. That did it. (by killingthemonkey)

by phazed99

Converting String to Char

Hello, the code below works but if I remove the " // " to make it no longer a comment and replace th...

[9 replies] Last: > Note: to get a pointer which can be used to modify the characters (b... (by ne555)

by adam2016

Bit shifting question

Hey guys I'm reading a book on algorithms and the author illustrates a simple hash function this h...

[5 replies] Last: Exactly! :O) (by Duthomhas)

by Beherit666

Fastest algorithm to conditional search within two large text files

Hi experts, I want to compare the contents within two large text files: i.e. In file A (n li...

[10 replies] Last: and, you may be able to cut the binary search down to a O(1) lookup if... (by jonnin)

by momof4

how to get a random negative number?

I'm working on a game, the screen goes from -200 to 200, and I need stuff to appear anywhere on it. ...

[5 replies] Last: I can't even look at it now, really bad headache today. its supposed ... (by jonnin)

by F95

C++ Word search in randomly created list

Need to create a program that creates a Library that is 1024 lines deep and a Recent_List that is 12...

[7 replies] Last: It looks correct, but I still have to ask if you're doing the right th... (by dhayden)

by Bopaki

Why is it that I get a stray error \302 on every line of code

Each time I copy code from the internet I get these errors // C++ Program to find smallest and...

[7 replies] Last: Thank you to all!!! I basically had to re-type the whole program befor... (by Bopaki)

by sindhu05

Can anyone help me finding the Time Complexity of these two algorithms?

Here are the two algorithms, sum = 0; for( i=1; i<n; i++ ) for( j=0; j<i*n; j++ ) ...

[3 replies] Last: Got it. Thanks a lot! Really appreciate the help :) (by sindhu05)

by TheToaster

How can I initialize this array at compile time in the constructor?

Here is a simplified version of the code I am having an issue with: constexpr NUMLABS = 8; //Shou...

[13 replies] Last: Seems like an array of some union-like class type (e.g. std::optional... (by mbozzi)

by nchithangvic

access variable by pressing address

Hello , I wanna use Instance w to access _x by pressing address (OlMain->vref->_x=10;) through ui_Ma...

[2 replies] Last: @coder777 thank you so much, (by nchithangvic)

by cblack618

File Filter Assignment

I need help with this assignment. I know pure basics cin, cout, type stuff. I don't know this advanc...

[8 replies] Last: Thank you Jonnin and Manga for you assistance (by cblack618)

Beginners - February 2020 (Page 3)

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