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Beginners - April 2019 (Page 14)

Hello! I am new to user-defined functions and I am trying to get them to work. Whenever I introduce a variable in the function that is identified in main, it ...

[6 replies] Last: That appears to have fixed it, Thank you! (by thylath)

by grumblesnake

LNK2019 error - PPP chapter 16 Drill

I'm going through Bjarne Stroustrup's Programming Principles and practice and have reached chapter 16, which is the introduction of callbacks. The Drill at the...

[4 replies] Last: C16_main.cpp:1:9: fatal error: ../../lib_files/Lines_window_2.h: No s... (by grumblesnake)

by darkX

Maximising the remainder

Given a set of numbers that may be added any number of times to produce to produce a number. the only condition or rather motive is to maximise the remainder wh...

[11 replies] Last: How about Goldbach's conjecture in this context? Well, we dno't have a... (by MikeStgt)

by DdavidDLT

Calling a function in a function without parameters ?

Hey, in line 24th void print I don't want to use p and int parameters because I'm not using them for printing only the value that I got from line 18th function....

[1 reply] : It's usually a good idea to separate computation from presentation. In... (by dhayden)

by pka8659280

play music with c++

Hi, I'm a beginner in C + +. How to implement the following code start playing music in 2 seconds？ It would be better if you could give me a simple example s...

[1 reply] : Use sleep_for(). See the example here: http://www.cplusplus.com/refer... (by dhayden)

by Horror

Problem with Function Program

What this program is supposed to do is have the user to enter values for a, b, c, d, and e. Then to find the largest of the five and print them. The program see...

[6 replies] Last: LOL! -- Sorry. Cross-reference: http://www.cplusplus.com/forum/beginne... (by MikeStgt)

by blackstar

struct / class - Need pointers

Need Pointers on this, went through my book again trying to solve this question and running into brick walls define the struct studentType to implement the b...

[17 replies] Last: sorry fiji885 (225) ill read over the classes again, my brain is all... (by blackstar)

by wowisay

Unresolved issue

I am having a very similar question to this one .Can someone help http://www.cplusplus.com/forum/beginner/252049/

[1 reply] : Are you going to delete and run again if we do help? http://www.cplusp... (by salem c)

by kyrresc

Create object of class inside (same) class

Hello, In C++, is it possible to create an object of a class X inside class X? For example inside a member function.

[3 replies] Last: class X { // some things }; class Y { X anXObject; }; ... (by Repeater)

by jjordan33

Parameter confusion with class objects and overloaded operators

Hi, I have a friend function that overloads the insertion operator to deal with class objects. I'm confused because I'm not sure how it takes its parameter. ...

[3 replies] Last: std::cout << *this; std::cout << Rational(tempN, tempD); (by ne555)

by navilgameboy

problems with getline() and cin.ignore()

So, i got a problem where it would repeat "write something: " twice. Which i fount out was triggered by the getline(cin, user_input) or getline(cin, current_use...

[5 replies] Last: This last post by Handy Andy contains many of his own opinions. While ... (by Peter87)

by unkown1234

Need help for a game

hi, guys, I'm having trouble in running my code. my first problem was that the winner was not always showing so I try to add if statement to declare the winner....

[1 reply] : This is why clear indentation matters. //System Libraries #include <... (by salem c)

by Eristato

SFML MUSIC (HELP!!!)

Hey, I was wondering if it was possible to play multiple music tracks at the same time. Does anyone know? (Music as in sf::Music music;) Is it possible to play ...

[2 replies] Last: Okay, thanks for the tip, I'll make sure my audio tracks are in the ri... (by Eristato)

by sturk

Prototypes for a default constructor

Why isn't 'Bar(const Bar&b)' a default constructor as well? Which of the following are prototypes for a default constructor? Bar(int a=0, int b=0); ...

[1 reply] : A default constructor is a constructor which can be called with no arg... (by JLBorges)

by acscicplusplus

Create a 2D Array to Create a Gradebook

My assignment is to create a 2D array to create a grade book so that each student's name can be displayed next to all of the assignments. The text file I am r...

[6 replies] Last: I see the point you make. I did do another assignment with struct that... (by acscicplusplus)

by closed account iw75izwU

Using fstream to fill a struct

I am creating a program that collects a class of max 30 students using a file. Each student has a ID code, 2 test scores and 7 homework assignments. The problem...

[no replies]

by NovaPrimeveera

[Problem] Avoid having negative answers for subtraction.

Dear C++ community I am currently faced with a problem with how to avoid receiving a negative number for subtraction. My objective is to randomly generat...

[1 reply] : int index = (rand() % 4) +1; s = symb ; this says take an number ... (by jonnin)

by foodwoods52

How would approach this problem

INPUT: A list of daily wheat prices per bushel, one per day. OUTPUT: The maximum profit (per bushel) that could have been achieved by buying and selling on d...

[9 replies] Last: @ne555 Thank you once more for the link to Eddie Murphy's 'Trading P... (by MikeStgt)

by NeonDolphin

Need help with (if,else) statements and Hello peeps!!!

Hi guys,first I would like to say "Hello Cpp Forum!"; I am a 44 year old boxing coach,that his friend enlisted in c++ course...hoping that it would regenerate m...

[3 replies] Last: You guys Rock!!! Thank you so much nicholasjb1996 and fiji885!! Now ba... (by NeonDolphin)

by sturk

C++ reason for compilation error

Can someone explain why does the code below give a compilation error? Revising for a test. Thanks What is the output of the following code? #include <ios...

[3 replies] Last: #include <iostream> namespace first { int var = 5; } namespace { ... (by closed account z05DSL3A)

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