Beginners - C++ Forum - January 2019 (Page 2)

by inf2405

Numerical Approximation

Hi, I have to code two numerical approximations and compare them by giving them two different val...

[4 replies] Last: Of course it runs for ever. You NEVER CHANGE THE VALUE OF i. Just use... (by lastchance)

by Tduck

Segfault upon compilation

My last question was far too wordy and I tried using an entire program to describe my problem. I ha...

[7 replies] Last: Oh. Right, arrays start at 0. I guess that kind of flew to the back ... (by Tduck)

by CakeByTheOcean

Address boundary error, while reading a file

hi every I received a bug when I reading a file. I want to read a file, which more than (1 << 17) li...

[11 replies] Last: What I do now, is only having one vector, resize or reserve at... (by CakeByTheOcean)

by lizan0a

Fraction Class

I need some guidance and constructive feedback on how to get my code to execute adding, subtraction,...

[7 replies] Last: @Granado Wow that was wonderful. Thank you for sticking around to help... (by lizan0a)

by inf2405

Wrong binary expression with double

Hi :) I am trying to implement a numerical approximation, but first I need to define the function...

[2 replies] Last: double y=-(50*x)/(((25*x*x)+1)^2); ______________________________^ ... (by AbstractionAnon)

by closed account Ezyq4iN6

Best way to retrieve multiple variables from nested objects for other object?

I want to reach into an object, which is nested in other objects, and retrieve data to easily pass t...

[12 replies] Last: Interesting. I'll practice with some examples from that link and see i... (by closed account Ezyq4iN6)

by Bopaki

Help me display the total volumes of Box1 & Box3

Line 87 and 88 calculates the sum of two volumes Box1 + Box2. This is what I get when I try to disp...

[2 replies] Last: Hello Bopaki, You have been around long enough to know not to use the... (by Handy Andy)

by Bopaki

I do not know how to work with:String::String(char const*)

I get this error when compiling my program: undefined reference to `String::String(char const*) ...

[8 replies] Last: Your constructors look fine. You have some other problems though. Li... (by AbstractionAnon)

by MrGreenz

Homework help

// delete

[1 reply] : And? What's your question? What, exactly, do you need help with? (by MikeyBoy)

by Bopaki

How can I display the sum of object1 and object2

I get this output when I try to add two objects: Volume of Box1 : 210 Volume of Box2 : 1560 Volum...

[4 replies] Last: Okay thank you everybody. You are both correct. The answer of 5400 is ... (by Bopaki)

by denwisi

diodecalculations

I am new to C++ and have this program that needs to solve the equation print the results all in a ni...

[5 replies] Last: @denwisi, I don't think you understand the problem - and you need to d... (by lastchance)

by gibsonj338

Pythagoras Theorem program

Two cars A and B leave an intersection at the same time. Car A travels west at an average speed of ...

[2 replies] Last: As keskiverto mentioned: You calculate the formula before the variab... (by coder777)

by DrogHead

Image Bitmap not showing

So, I was experimenting with Windows Applications, but when I try to diaplay an image the program co...

[4 replies] Last: I think the problem is in the path to the file What makes you think s... (by coder777)

by bzarr

Only the first two cins are processing and then the program stops.

ofstream outFile; string student1, student2, student3; int id1, id2, id3; outFile.open("n...

[1 reply] : cin and getline don't play nice sometimes. I would just use getline f... (by jonnin)

by sgill1998

Replacing a substring with a string

I need to replace a substring with a string. This is what it says to do:Command line tool: You ar...

[7 replies] Last: SEP field. Im outta here! If you use it, do make sure you understand... (by jonnin)

by colton96

If else problems or something else i'm lost

I posted about this last night however a new problem has happened. I want the code to be able to und...

[4 replies] Last: it is just cout. your program has "using namespace std". If you don'... (by jonnin)

by Thormind

Moving an ASCII character left or right on the console when a or d are pressed

I have been trying to find a solution but nothing works. My code is very simple. Using getch() in a ...

[5 replies] Last: sleep and Sleep are different as well, or were ... (by jonnin)

by Tduck

Ncurses output glitches and becomes invisible

A general question about NCURSES: How do you keep the screen properly updated? My game requi...

[no replies]

by e4777

Population Growth C++ program

I got the hardest school assignment out of the whole class and we have started 2 weeks ago only. I n...

[15 replies] Last: Try what? (by Grime)

by emilo0212

Plotting math functions (quadratic functions) in C++11 on Ubuntu using ImGui

I'm trying to plot a math function (specifically a quadratic function) using ImGUI, and was wonderin...

[15 replies] Last: Bingo! I think there are much better GUIs for use with C++ if you are... (by lastchance)

Beginners - January 2019 (Page 2)

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