Beginners

by admin
Welcome -- read before posting!
 
Welcome to the beginner's forum in C++.com! In this forum, users can to talk about any topic relate...
[2 replies] Last: How To Answer Questions in a Helpful Way Be gentle. Problem-relat... (by admin)
Console Closing Down (1,2,3,4,5,6,7)
 
Hi, i am new to C++ and have just written my "Hello World" program. It worked all right but the cons...
[120 replies] Last: It displayed "Hello world" after you pressed Enter. int c is a ... (by Duthomhas)
base class undefined
 
I'm try to use inheritance here where the "started" class is the parent and as I made the "BeginJour...
[11 replies] Last: Not sure if this thread is dead or not, but for the factory pattern I ... (by Deadweight77)
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)
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)
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)
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)
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 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...
[3 replies] Last: Also, self-documenting variable names helps readability. something lik... (by againtry)
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)
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)
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
Need help with a random number generator
 
Need this program to generate a random number that is then modulated. If the modulus produces a 0, t...
[4 replies] Last: Hello F95, For the most part most of this is unchanged from what you ... (by Handy Andy)
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)
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)
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)
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)
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)
Pages: 123... 23
  Archived months: [dec2019]