C++

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Beginners - May 2018 (Page 8)

Project to calculate money and time to spend all of it.

Hello, I'm trying to make a program that would calculate a certain sum of money and how long it would take you to spend it. This is a very sloppy rough draft. I...

[14 replies] Last: struct ForceCommas : std::numpunct<char> { char do_thousands_sep... (by SmokeyBear)

by kainev

Visitor pattern: To cast or not to cast

Hi all, I've just started using C++ (from Python/Java), I'm trying to implement a basic visitor design pattern to be recursively used on a tree data structure....

[10 replies] Last: > Surely if the Accept method is marked const, you would have to chang... (by JLBorges)

by wsme

Strings without <string.h>

Hey all, Wanting to use char* or char as a string as I had in a recent class, but am unable to remember how it was done in the class. I remember most of the...

[11 replies] Last: I'll try those, then see how things go from there. Thanks for the help... (by wsme)

by An Integer

How to treat previous/tail on doubly linked lists?

I am having some troubles on logic for implementing both previous and tail on a doubly linked list with nodes. Could someone help me with this? My node setup...

[8 replies] Last: @keskiverto & @jonnin thanks!! For @icy1 : you're right. I got t... (by An Integer)

by Ceadric

Trying to understand functions + arrays

Hey guys, I'm currently taking a beginner C++ class and failing to understand how arrays and functions work together, I have a test coming up soon and the teach...

[5 replies] Last: because it did not pass by reference. what it really does, broken dow... (by jonnin)

by Flaze07

make_unique an abstract class

is it possible to make_unique an abstract class ? i.e //A is an abstract class std::unique_ptr a = std::make_unique< A >( A ); note : What I am try...

[5 replies] Last: yeah, I know that reference_wrapper does not create, because it is jus... (by Flaze07)

by Anoraki

What should I be using to create 2D games and GUIs?

I've looked into different libraries and I started on SDL2 because of its good support and simplicity. Just kind of want some opinions on if I should be learnin...

[2 replies] Last: Are you talking about making a 'windowed' 2d game, like windows solita... (by jonnin)

by jxo

C++ string converting

i am asked to write two c++ programs , the first asks the user to enter a character string that consists of numbers ranging from 0-255 separated by a single das...

[7 replies] Last: I have one suggested change to Andy's and icy's programs. Use a for l... (by dhayden)

by AL88

Trying to fill an array with enums

Hi. I'm trying to fill the array with enums, why aren't the if else statements responding? #include<iostream> using namespace std; int main() { ...

[4 replies] Last: well, let me preach on it lol. if this is indeed tic-tac-toe, that bo... (by jonnin)

by cplusplusnightmare

C++ backtracking doesn't seem to work

Hello guys! I'm a newbie in programming and i really need your help. I've been trying to learn backtracking for about 3-4 days now and i must say that i fi...

[8 replies] Last: Hello cplusplusnightmare, Sorry I got behind here. I do agree with tp... (by Handy Andy)

by closed account L6Cjy60M

Please help me begin this question. I don't even know where to start

The largest value is -1

[14 replies] Last: @FurryGuy Oh I see... Pardon my confusion. @icy1 (laughing!) Progra... (by Manga)

by jardenblack26

How to delete a character from each word in the sentence

i was trying to do a program that ask you how many characters you wish to delete from each word as example: you enter the sentence : HI HOW ARE YOU delimiter(st...

[1 reply] : If c-style strings with std::strtok() must be used, something like t... (by JLBorges)

by egroj1

Nested loops

Hi ! i'trying to output a list like this: 255-255-0 to 255-255-64 ----> 255-254-0 to 255-254-64 ...... 255-0-0 to 255-0-64 254-255-0 to 254-255-64 ...

[8 replies] Last: Hello egroj1, I came up with this. See what you think of it: for (... (by Handy Andy)

by jbohol

Advantages and Disadvantages of C++

Hello Masters, Greetings! I'm reading some articles regarding c++ Vs C# and i saw this disadvantages of C++. Can someone of masters explain the below disadvan...

[15 replies] Last: [quote=Ganado]"the safe part" of C# Perhaps I should have said, si... (by Ganado)

by Glaucous

access single element in vec3d

I have this code that store 3d coordinates in vec3d. Now I am trying to find the average of max & min value in first column (which is c in my vec3d) then let ...

[11 replies] Last: Didn't just want to make a comparator to sort based on Y, then X, then... (by icy1)

by gagamehl

CreateThread problem

I have quite a big MFC application at my disposal which I want to break down to the stuff I actually need. However I am just using Standard Windows Libraries. ...

[3 replies] Last: Why don't you use AfxBeginThread ? https://www.codeproject.com/Article... (by Thomas1965)

by Newbieess

Simple array problem plz help

Hi!! im new to c++ and i would like to know how to write a program to read string, but only read a to z, not the , ' ' + ! etc. and store them into an array s ....

[2 replies] Last: Hi Newbieess -- post what you have so far inside tags... This... (by icy1)

by CGunn86

Class constructor question.

If I use an initializer list to initialize most of my member variables, but I have one data member that needs to be initilized through another function, what wo...

[4 replies] Last: Furthermore, Foo::Foo( Bar x ) : foo( x ), // foo has now been comple... (by keskiverto)

by closed account 3RMzT05o

Calling function in switch case help

My program: It is a very basic calculator. you have to enter 2 numbers and then either type "a" for adding and "m" for minus. Problem: I have encountered som...

[17 replies] Last: Oh I get it, it is a good way to make code more simple. (by closed account 3RMzT05o)

by Ceadric

Need help exiting a while loop

Hello everyone, I am currently writing a code that is supposed to take the users miles driven and gallons used to produce the MPG. I have majority of the code d...

[2 replies] Last: I see, thank you so much! (by Ceadric)

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