Beginners - C++ Forum - January 2011 (Page 21)

I know the first one is assigning the actual values in the array into the other one but whats happening in the second while? int i =0; while(dest[i++]=src[...

[2 replies] Last: Yes, I was also confused why there was no == there but basically what ... (by Bman900)

by Jonspeidel

Dont laugh, strings are killing me

So this is my first post and i know it might seem dumb but I need to ask someone. I'm trying to write a program just to run in CMD and do a simple "what action ...

[3 replies] Last: The associativity of comma operator is left to right. Your expression ... (by techie07)

by closed account GhqjLyTq

System calls without DOS box?

Is there any way i could make system calls without creating a DOS box window?

[no replies]

by rjd82AA

Inserting User Defined Functions

hey there, pretty simple problem, im trying to write a simple program using 3 functions with 2 user defined functions in it. Ive been running into the error cod...

[11 replies] Last: Returning values let's you get output from the function. For example ... (by Disch)

by Shakazahn

Can't figure how includes/headers works

Hi, I have a MyProject.cpp file where the "main" is, and I'm trying to create a new class but in a different file. Most tutorials show how classes work in...

[10 replies] Last: See this http://www.youtube.com/watch?v=ZYpvz9ZAwDI (by some random dude)

by wind27382

simple code wont compile and don't know why

basically I am very new to coding I have been in 3d graphics for a few years and decided that I want to learn programming to aid me. I have purchased c++ for du...

[7 replies] Last: thank you guys i have much to learn but thanks for the help. I'll also... (by wind27382)

by crossfire1703

scan codes

I need help on how to use scan codes. I have a scan code chart, but I don't know how to use them. Suppose I want to lock the 'up arrow key', how can I do it? A...

[1 reply] : It depends on how you are getting them. If it is directly from the ... (by Duthomhas)

by Tare

Code not running (1,2)

from the thread title as you may have guessed, I am very new to this. I am using Dev-C++ 4.9.9.2 Here is my code. #include <iostream> int main() { us...

[29 replies] Last: oh dear. Hmmmm I think I am using the new one. How do I get the lib... (by Tare)

by vagelis

virtual functions

the question is if a virtual function in base has different parameters of the function with same name in derived are they connected or not?? and if the mara...

[10 replies] Last: ahh yes I forgot about that, cheers guys (by quirkyusername)

by honeyoak

Inheritance problem

My main program security1.cpp does not recognize my "Bond" class which is inherited from the "security class". I am not sure why (i think it has do to do with t...

[2 replies] Last: If I put the bond class wholesale in the securityprice.h and it still ... (by honeyoak)

by WilliamERoberts

Efficient way to read and store a large map?

I am working on a project for a class where I need to read and store a very large, 3 dimensional map (they say I need to be able to handle Millions*Millions*Mil...

[2 replies] Last: The project is about solving a maze. I don't assume they'll be running... (by WilliamERoberts)

by cplusplusn00b

random number function

So Im working on a project and it calls for a random number of items in a linked list, accessing these functions according to a timeline, then removing or addin...

[4 replies] Last: excellent, I think I got it from here. thank you for your help! (by cplusplusn00b)

by Janlan

2D array sum

Any help or hint how to sum 2 matrix and form third matrix. for ex i want to sum a and b and store the sum in c .

[10 replies] Last: just get rid of the extra ) (by ultifinitus)

by TheBreadCat

Template for multiple object?

i`m making a game in c++ (+allegro), and im gonna make a template for a object, lets say a "bullet". now this "bullet" should have its own varibles(x, y , dir ....

[18 replies] Last: kk :p i`ll try and code with it :D **sfml.. super fml? (by TheBreadCat)

by cplusplusrookie

Sorting with pointers

I am struggling with sorting, this time with pointers. Can you guys give me some feedback? I am getting an error on transforming float to double #include...

[8 replies] Last: My prof suggests I "sort the name as well" I am confused as the in fil... (by cplusplusrookie)

by vagelis

initialize null pointer

the following code doesnt work void alpha(int *p){ *p=5; } int main (void) { int *p; alpha(p); cout<<*p; //cout<<"3"; getchar(); } but when ...

[13 replies] Last: All my programming knowledge comes from a decade plus of miserable ex... (by closed account z05DSL3A)

by UglyWan

I can't get a do while to work with or

I can't get this while to work with or do { cout << "1. Attack" << endl; cout << "2. Say Hello" << endl; cin >> enco; switch (enco) { ...

[1 reply] : I think you want while (opoHp > 0 && pHp > 0) just because this w... (by ultifinitus)

by vagelis

&table and table of int table[] have same value??

int main (void) { int a ;a =1; cout<<&a<<a; getchar(); } it results same value..!! but why??

[3 replies] Last: thank you very much my friend thit was very usefull!! and very imp... (by vagelis)

by rasvanel

A cold beer, or hot tea :) for the person who can h e l p m e with this one:

i need the code for a program that: reads data from A04_a, A04_b, A04_k does the folowing operations : - all the elements from aij and bij are multiplied...

[4 replies] Last: Well I don't believe it's necessary to post you whole problem. No one ... (by ultifinitus)

by vagelis

template derived class

if i want to define a derived class from a template base the way i know is template<class x> class Base { }; class derived:public Base<int> { }; ...

[2 replies] Last: but if also derived is template with same class x how can we do that?... (by coder777)

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Beginners - January 2011 (Page 21)