C++

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Beginners - May 2018 (Page 10)

So this is our assignment: Write the C++ code for a void function that receives three double variables: the first two by value and the last one by reference...

[2 replies] Last: pass a pointer to quo, not quo itself. or have the function return ... (by zaphraud)

by minimalistisch

Get line from txt file into string (every line if wished)

Howdy strangers, I want to get the content of a .txt file into strings. I already got this: string content; ifstream d...

[1 reply] : Hello minimalistisch, Welcome to the forum, What you wan to do is so... (by Handy Andy)

by Endersmens

Write access violation thrown when trying to call an array-modifying function twice EDIT: Now a read access violation.

I have a function that modifies the contents of an array. the function works just fine when I only call it once. If I call it twice, it throws a write access vi...

[16 replies] Last: Thank you, the issue was resolved. Also nice catch in reroll, you are ... (by Endersmens)

by Dvir Arazi

Is there a way to share a variable between instances of a class, but not between instances of the class containing it?

I have a class called Monster that inherits from class Entity, which has a variable called size. I want every Monster to have the same size by definition, but I...

[4 replies] Last: The problem is that you're saying that every Entity has an individual ... (by dhayden)

by BmoreCoding

Need help with basic calculator code

So the code I have here works as expected, but I'm trying to figure out a way to store the result of each if statement into a variable. My reasoning for this i...

[1 reply] : Hello BmoreCoding, Welcome to the forum. To do what you want you bas... (by Handy Andy)

by jcarlson93

Having trouble with my class and vector working

I have written my code for an employee management system that stores Employee class objects into a vector, I am getting no errors until I try and compile, I am ...

[1 reply] : On line 125 you are trying to find a string in a vector of Employee... (by lastchance)

by ScottyYDg

Problems with Inheritance.

What would be the changes I need to make to my code in order to make sure it can actually add my numbers together? It asks me to do the following: Create a...

[3 replies] Last: main.cpp #include <iostream> #include <sstream> #include <vector> #... (by ScottyYDg)

by wtbe

Java Header files

I'm learning Java this term. What I've realized is that all of the header files we create in C++ is now provided to us free of charge in Java. However, is there...

[3 replies] Last: C's (and C++'s) compilation model is designed so that compilers can op... (by mbozzi)

by Thesar

Accumulate and Find_if (LAMBDA)

I am doing a program where the user chooses to create a list either with ints or doubles. The classes need therefor to be templated. In these classes i also hav...

[3 replies] Last: You fillList function does nothing. Look at this line: std::generat... (by tpb)

by isuckatcpp

A program that reads a file.

I need to write a program that would take student names and GPA from a file and print the names of students with GPA >3.4 into another file, my problem is that...

[4 replies] Last: Thank you so much guys for your amazing help and support, I'm already ... (by isuckatcpp)

by hibiscusleaves2544

Finding the longest route in a graph

Hello, here's a snippet of the code to give you an idea of what i'm doing here. The function is suppoed to: *return the starting node that gives a longest DFS ...

[1 reply] : ¿so? ¿what's the problem? (by ne555)

by Bokka

Please, help me to convert a Python code to C++

Hello Forumers! I am new to C++, but I have to write a simple program to calculate the CRC16 of a Modbus string. I have only to write that, I have not to do an...

[9 replies] Last: EXACTLY what I want! YOU are my HERO! Thanks a lot to everybody!!! (by Bokka)

by delloskill

Something called Stack Overflow

So I'm a high school student learning C++. My project is to make a basic-terminal based inventory system for the Chemistry lab. Since we haven't reached Data Ha...

[2 replies] Last: You have 1000 stock objects in stack. One stock object contains: 2 in... (by keskiverto)

by erikas37

help with returns

Can i return like that? int a,b; int sum(a, b) { sum = a+b; return 0; } or only like this? int sum(int a, int b) { return a+b; } ...

[3 replies] Last: @erikas37 -- Strive for declaring variables as close as possible to th... (by icy1)

by monae

Calculate fallingDistance and kineticEnergy

Hi Everyone. I am new to C++ and in my first programming class. Our instructor has asked us to write a program that calculates the Falling Distance (using formu...

[9 replies] Last: You should calculate 0.5gt 2 in your function fallingDistance(t) - un... (by lastchance)

by MondayPenguin

Visual Studio 2017 not working

I just started programming C++. When I tried the shortcuts it didn't do anything. When I try to run or debug the code, the option to do so is grayed out. I don...

[5 replies] Last: @MondayPenguin, PLEASE learn to use code tags, it makes reading your ... (by closed account E0p9LyTq)

by AJ Wants Your Pizza

Quick Sort won't sort an array that has 4385 or more elements

I cannot get quick sort to work with an array that has more than 4384 elements. I have three slight variations of quick sort that I have been told work, and the...

[5 replies] Last: Also, your custom swap is erroneous. Please try to understand the dif... (by icy1)

by closed account NCRLwA7f

Testing a program

Hello, I have written a program to identify local trees in the area. Basically all you have to do is choose between 2 questions (A or B) each question leads to ...

[6 replies] Last: Since not all the ID's are going to be the same length, it might need ... (by closed account NCRLwA7f)

by paulpv278

convert string to decimal

Hi everyone , i have a text file with strings inside it. now i need to read that file and convert the strings into a decimal value. like for example i have t...

[6 replies] Last: in c++ characters are integers, 1 byte in length. there is no 'conver... (by jonnin)

by Codingforfood

Why are Marks not copied in my array?(streams)

I am trying to copy characters from a file into a 2d array. Here is a screenshot of my notepad http://prntscr.com/jgexjx My problem is my Marks aren't replacing...

[2 replies] Last: It is trying to read two integers, so it will stop when it either hit... (by chrisamgad)

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