General C++ Programming - September 2018 (Page 6)

simple question about copy constructors
Hello everyone! I have a very simple question. If you execute this simple code : #include <iostream> #include <vector> class Example { public: ...
Sep 14, 2018 at 11:12am
[3 replies] Last: Actually I don't know that I am right ... I'm sure that the issue is t... (by lastchance)
Problem with recursion
I'm getting this error and have no clue how to solve it it's probably one of my curly braces but can't pinpoint it Error main function must return a value He...
Sep 14, 2018 at 8:01am
[1 reply] : @Fundoram, You will get more attention if you put code in code tags - ... (by lastchance)
by RCane
Class constructor with struct as argument
I am trying to use a constructor that has a Struct as an argument - unsuccessfully. The TESTER constructor with the Business struct as an argument doesn't provi...
Sep 14, 2018 at 7:39am
[1 reply] : TESTER(Business Business) The name of the var must be different from... (by Thomas1965)
My try Again Loop is not working correctly
My programs test to see if the user input is a well formed formula. My try again loop in my code does the loop but it skips the user input and goes straight ...
Sep 14, 2018 at 6:57am
[5 replies] Last: so the output is suppose to just rerun the program asking for another ... (by nightskyxXx)
Calculating if circles are touching, not touching, or overlapping using class Circle
So i'm in a pickle, i'm trying out how to use my preset values that I used for the two circles? I have listed the values in main. I have a function called getD ...
Sep 14, 2018 at 12:47am
[2 replies] Last: if (getD == c2.getRadius + c3.getRadius ) Hi, Equality is problema... (by TheIdeasMan)
Reverse and changing case in the For loop...
The program should be in "For loop":
Sep 13, 2018 at 8:47pm
[2 replies] Last: joee, you haven't shown any effort in attempts to solve this problem, ... (by Ganado)
solve the linear equation
I am trying to solve the linear equation A.x=C. I created the matrix as shown below to find the x. When I increase the dimension (n) to for example n=100000, I ...
Sep 13, 2018 at 4:53pm
[8 replies] Last: As @helios and @ganado have shown you, you cannot afford to store a ma... (by lastchance)
Partial differential equation
I am trying to solve a Partial differential equation using finite difference method in c++. is there any library to use for solving PDE in c++
Sep 13, 2018 at 4:21pm
[3 replies] Last: It's a 2-d diffusion equation (if A, B, C are positive). Look up Crank... (by lastchance)
by rcx11
error: invalid user defined conversion
I'm attempting to implement a lambda to return the largest number of characters in an arbitrary group of strings. As each call of to the lambda may be different...
Sep 13, 2018 at 4:09pm
[9 replies] Last: I think I was too hasty to make that claim. In any event, "generic" ... (by mbozzi)
How to make objects without calling parameterised constructors?
How to make objects of a class without calling parameterised constructors? I have only one parameterised constructor but don't want to call it when I don't need...
Sep 13, 2018 at 3:22pm
[1 reply] : You need to create an default constructor - either with no parameters ... (by Thomas1965)
C++ Char Start with [P] and Convert
C++ Version 11 How to start basic code for below code? The program should be in the loop. If the first character is the letter lowercase g then....
Sep 13, 2018 at 6:44am
[1 reply] : #include <iostream> // std::cout #include <sstream> // std::... (by homy18)
Threads
Hi I have a program that can use an odd or even amount of threads - based on a passed in parameter - being used on any run of the program. If each thread fe...
Sep 12, 2018 at 9:05pm
[2 replies] Last: Ok that makes sense. So what path would I follow in order to make ea... (by parallx)
overloading the + operator
Hi I need to overload a + operator to assign memory in a 1D array of pointers. operator+: This operator adds a team of gladiators by receiving an array o...
Sep 12, 2018 at 9:00pm
[7 replies] Last: The spec doesn't ask for any checks. It only asked for checks in the d... (by parallx)
Another Boolean algebra question,
Hi guys, so I'm almost finished my computer science degree and I'm going back to some basics,in order to become a better programmer I would like to understan...
Sep 12, 2018 at 7:31pm
[13 replies] Last: thanks Helios, I'm surprised I even knew this stuff to begin with :o ... (by adam2016)
SetFocus after text
Hi, I made a txtfield form with text inside i want to SetFocus into this txtfield but after the written texts My problem: When I setfocus, it aims in the e...
Sep 12, 2018 at 6:17pm
[4 replies] Last: Thank you!!!!!! WORKED <3 (by alesandro676)
Hit Enter in Textfield
Hello, I've created a window via CreateWindowEx Problem is, I can't detect hitting enter in a txtfield Enter can only be detected in the window form, but not ...
Sep 12, 2018 at 4:33pm
[8 replies] Last: Thank you!! (by alesandro676)
Help in this shuffling question!
Consider the following algorithm, which generates a (not necessarily uniformly) random permutation of numbers 1 through N: P := [1, 2, ..., N] for i in 1..N d...
Sep 12, 2018 at 2:16pm
[4 replies] Last: My program will not work for N == 17, as that would require around ~35... (by Ganado)
by lo2
Best way of solving linear equations
Hi there, I have a program where I am doing some weighted least squares, and for that I need to solve a system of linear equations. I have tried doing thi...
Sep 12, 2018 at 9:44am
[9 replies] Last: @lo2 Here is a naive implementation of the QR factorisation described ... (by lastchance)
How can I make class to accept array of variables?
How can I make my C++ class to accept Array of variables? Like this: Vertex<float> vertex = { 0.3, 0.2, 0.1 };
Sep 11, 2018 at 9:05pm
[2 replies] Last: Thank you! (by Putarda)
boolean algebra(circuits)
Hi guys, so I have taken the time to go back and study some computer architecture,I am on the first chapter and doing boolean algebra,using boolean algebra to ...
Sep 11, 2018 at 3:21pm
[5 replies] Last: Wrong AB+A'C (by lastchance)
September 2018 Pages: 1... 456789
  Archived months: [aug2018] [oct2018]

This is an archived page. To post a new message, go to the current page.
Registered users can post in this forum.