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Beginners - January 2013 (Page 31)

Hi, I have written a program, that would find the prime factors of all numbers upto 1000. there should be 999 outputs. but the outs arent really the sum, what s...

[13 replies] Last: Is prog your executable name? (the .exe file) (by closed account 3TXyhbRD)

by FlyingMonkey456

How would I get the width and height of an HBITMAP?

I need the width and height of an HBITMAP for the BitBlt() function. How would I get those?

[4 replies] Last: I don't know whether that worked or not because I can't compile the pr... (by FlyingMonkey456)

by harsha

Declaration of an array of vectors

When i compile this prog, i get errors sayin 1.'d' undeclared" 2.Each undeclared identifier is reported only once for each function it appears in. what is the...

[6 replies] Last: There are two problems with the original code. d only exists within t... (by cire)

by egg management fee

Problem with for loop exercise

I'm trying to work through some exercises on for loops and I'm stuck on this one: Write a program that takes two integers (one lower and one higher) and repo...

[3 replies] Last: no prob. (by closed account LN7oGNh0)

by cmarcello

3 ways that classes can relate to each other...

Hello, I am not understanding what a homework assignment is asking... Name three ways that classes can relate to each other. Would by Inheritance be one? ...

[2 replies] Last: Thank you. I thought I was on the right track but was unsure. (by cmarcello)

by hunter86bg

Sieve of Eratosthenes-Runtime error!

The task is to create a program that points out all prime numbers within the range of 0-100 using the Sieve of Eratothenes. Since the beginning of the text boo...

[10 replies] Last: I hope I haven't made you feel a bit down with all my comments, they'... (by hunter86bg)

by closed account o3hC5Di1

C++11 Perfect forwarding question

Hi everyone, I'm slowly starting to understand rvalue references and their benefits. At the moment I'm creating a templated facade class, so I thought it mi...

[8 replies] Last: That's exactly what I was after, thank you very much! I think I can fi... (by closed account o3hC5Di1)

by shrayder

problems with char variable

#include <iostream> using namespace std; char username, password; int main() { cout<<"What is the username?\n"; cin>>username; cout<<"\nWhat ...

[9 replies] Last: Thanks Chervil for the help. (by closed account 18hRX9L8)

by robgeek

Question about void pointers.

Hello guys. I would like to know what's the difference between this to statements. void function_test(void *l) { //Both works fine, so, what's the differe...

[1 reply] : In C there is no difference. In C++ the first one doesn't compile beca... (by Peter87)

by Meden

float accuracy, 0.1 + 0.2 == 0.3 is false

I have just ran into this idea, that a 0.1 float in a computer is not actually 0.1, so I was wondering if there might be either a better data type than float or...

[1 reply] : The bank computer would use one of two solutions. The first is to us... (by Chervil)

by arcticman452

convert a string to a double

On the last part of my program, I am trying to convert a string to a double, the code I have compiles but will not run once the program gets to that part of cod...

[11 replies] Last: Hey I found a way to parse from string to int on the references in thi... (by TheBeardedQuack)

by Klumpz Nguyen

Help me please !

Write a function that simulates a slot machine by printing three randomly chosen strings as the values displayed by the slot machine. Each string should be cho...

[3 replies] Last: Right I'm afraid this question is a little two easy for me to try and ... (by TheBeardedQuack)

by TheBeardedQuack

Structs inside Classes (I've gave 2 Answers, but which is right?)

Hey guys, I simple want to know if this would work in my Object class or if I would have to declare an instance of the structs within my class? #include <...

[2 replies] Last: Thanks pal, I was afraid I would :) Shouldn't really be a problem thou... (by TheBeardedQuack)

by MK 4

New guy Questions

Hey all, Im new to the furum and new to C++ . I decided that if I was to be serious about learning this programming language I should get input, and ask questio...

[5 replies] Last: I would just like to suggest that you take a look at thenewboston tuto... (by IronmanCro)

by luffydc

Need help with switch function based calculator

Hello! I'm trying to write a program that will simulate a calculator by using switches that call functions to perform the desired task. When I try compiling I g...

[7 replies] Last: But the same argument would be applied to putting them into a class. W... (by Zaita)

by TheFlyingByrd

More Efficient

I am new to C++, and for a beginner project I figured I could write a program that does the Pythagorean Theorem. It's work's like a charm ( i think haha) also i...

[6 replies] Last: Wow JLBorges thank you so much for this. It would have taken me foreve... (by TheFlyingByrd)

by mr4k

static_cast<class<T>> error

I'm obviously very new to c++. I have a class Vector2<T> and I'm trying to cast a void pointer to it using a static_cast. However the ide(xcode) seems to not ac...

[8 replies] Last: Think higher level than this. Why do you need to have different attrib... (by Zaita)

by aaronie

Using two different data types in for statement

Hello, i'm on an exercise in Programming: Principles and practices using c++. I've tried many different things but i just can't get this for statement to work. ...

[3 replies] Last: Please, see my changes in the previous message.:) (by vlad from moscow)

by harkonnen

read arguments from input

I have an assignment where i am to read arguments from the user. A special format is to be applied though. For example : -d 3 -D 3 -c 5 -u raw -g thisFile Thisn...

[5 replies] Last: No Problem (by closed account 18hRX9L8)

by pclarkeirl

Creating files & file maintenance ability

Hello, I am new to C++ and have taken on a simple project in order to try and learn C++. I have downloaded Visual C++ 10. My question is as follows: I hav...

[1 reply] : I'm not entirely sure what you are asking for. Are you looking to mak... (by Stewbond)

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