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General C++ Programming - December 2017 (Page 2)

Can I create a custom data type? (Not Classes)

Hello there! I was wondering if there is any way to create a custom data type. I don't mean classes, I mean a 3 bit data type that holds values from 0 to 7. ...

[6 replies] Last: Heh, I let my save every ounce tendency take over. I agree with the ... (by Duthomhas)

by stav

*new* struct not getting initialized to 0

I'm doing the bunny excersise thingy, and i want to have a bunnyEvent struct. problem is, when i create it, it doesn't get initialized to 0 ? which is importan...

[4 replies] Last: No. new T(); causes value initialization , while new T; causes ... (by mbozzi)

by fewdiefie

program crashes

Hello guys, I was trying to create a program that reads data from a txt file and store that data to an array. but unfortunately, my program started tp crash aft...

[4 replies] Last: I think that doing so increase the amount of complexity within the cod... (by benhart)

by tabris17

Optimization suggestions for linear probing table

Hi, I've written a rudimentary Linear probing hash table and I was wondering if you could suggest any optimizations for my search function. essentially my fu...

[4 replies] Last: I would seriously consider making it allocate max expected * X (you ca... (by jonnin)

by iJack123

Lights on/off programm

I have some problems with a code that I'm writing right now. I want to make a programm for a Raspberry Pi that should turn on or off my lights in my house. Any ...

[4 replies] Last: My programm does not work... I'm sorry to hear that. Please read: h... (by mbozzi)

by Muhammad Kashif

Triangle program

Hi guys, I'm having trouble with this program. Question is write a c++ program to draw and fill a triangle given three sides. For some values, it works fine ...

[4 replies] Last: h is used in the for loop too. But what is it? (by jonnin)

by Max Euler

How to make 2D OpenGL rendering efficient in C++

Hi, I am working on a little project in C++ using OpenGL. I want to be able to render multiple 2D rectangles either in some color or with texture as efficien...

[2 replies] Last: change the design. Class rectangle may make sense but draw inside ea... (by jonnin)

by dbag

Comparer question with custom Objects

I have the following list of person class to which I am sorting by full name and I apologize if this is a 101 question as I am still new to C++ and come from a ...

[8 replies] Last: Thank you so much @JLBorges for the in depth explanation. You have no ... (by dbag)

by hussnain

waiting for answer

There is problem in the output where it is just displaying last values just displaying last row values for every output. # include <iostream> using namespa...

[2 replies] Last: This should fix you problem #include <iostream> using namespace std... (by noobofcpp)

by hebrerillo

getaddrinfo_a Windows equivalence

Hi everyone! I have to implement a client socket connection application. This application receives only one parameter : the maximum timeout for connect/read ...

[no replies]

by fewdiefie

reading data from txt file.

Hey everyone, I'm trying to create a basic program that reads data from a txt file that looks like this: /* data.txt */ var1 = value1 var2 = value2 var3...

[8 replies] Last: Nah, people aren’t taught how to use C properly, so it looks like ma... (by Duthomhas)

by ReaperSoul

get object idetifier

i want to get the identifier of a object class placeholder { string identifier = identifier public: void print(){ cout << identifier << endl; } } int ...

[1 reply] : #include <iostream> #include <string> struct some_class { std::s... (by JLBorges)

by SOURABH PRAKASH PATI

String input

What is the best way to take a string as input ignoring the whitespaces? For example : If input is : IGNORE WHITE SPACE string should contain : IGNOREWHITES...

[7 replies] Last: Another option without getline and removing whitespace. In case the in... (by Thomas1965)

by AlexCantor

Ivor Horton Book: Using C++ Standard Template Libraries

Ivor Horton Book: Using C++ Standard Template Libraries 2015 Apress has C++ programming exercises at end of each chapter. At the beginning of the exercises the...

[no replies]

by omarrrrsoska

warning signs

You are developing a program to control the warning signs as the exists of major tunnels. If roads are slick ( road_status is ‘S’) , you want to advise driv...

[9 replies] Last: You are not asking the right questions. If you want the code for this ... (by bheadmaster)

by JustMike

Randomisation Each Time The 2D Array Is Called

Basically I am making an adventure game in a 2D array, I would like the character to move around fighting monsters and have that represented in a 2D array. I ha...

[3 replies] Last: Thank you both for replying, I have looked over what you both have sai... (by JustMike)

by Cambalinho

C++: how use arrays on our class's? (1,2)

see my class: class Sprite { private: LPDIRECT3DDEVICE9 sprDevice=NULL; LPD3DXSPRITE sprSprite=NULL; LPDIRECT3DTEXTURE9 sprTexture=NULL; pub...

[21 replies] Last: 1.b and 2 works fine. but the 1.a have a memory leak. maybe because i ... (by Cambalinho)

by sharsh2222

Playsound only when specific key is pressed

i am making a program in c++ but i want help in playsound fuction i want a specific sound to be played only when a specific text is entered for exampl...

[1 reply] : Use SFML.Use sf::SoundBuffer to load the sound file you what then use ... (by noobofcpp)

by RAMADHAN HAMISI

c++ programmin problem please ! any one can show how this be?

A PROGRAM THAT READS IN THE EXAMINATION NUMBER OF CANDIDATES IN RANGE OF 0-32768 TOGETHER WITH THE PERCENTAGE MARKS ATTAINED IN A GIVEN EXAMINATION .THE MARKS...

[5 replies] Last: The premise of your question is slightly wrong because the question is... (by Ganado)

by SSteven

Improper locale definitions

A C++ implementation defines both: 1) the named locales that are available and 2) the definitions of the facets contained in each locale. The C++ standard ...

[3 replies] Last: I could never be sure that the locale in fact encapsulates German con... (by Cubbi)

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