Beginners - C++ Forum - May 2009 (Page 5)

Difference between two class implementations

Hi, I'm reading som examples of class implementations, and hope that someone can help me out with understanding the difference between: Classname class...

[12 replies] Last: Ok I get it... so you can only allocate arrays whenever you have a con... (by tition)

by levone

"Expression: deque iterator not dereferencable" can't think of a fix :(

apparently deque iterators are not dereferencable... the code class Player { public: Player():points(0){} ~Player(){} void AddCard( std::deque<Ca...

[2 replies] Last: thanks :) im really loving these forums and community lol. (by levone)

by GameOn

(int)double where double's value when equals to int gives --int

heres my code int t1=min(x1,x2); int t2=max(x1,x2); fo(i,t1+1,t2){ y=m*i+c; if(y-(int)y==0) sol++; cout<<i<<" "<...

[2 replies] Last: oh sorry actually fo(i,t1+1,t2)==for(int i=t1+1;i<t2;i++) actually it... (by GameOn)

by scorpion09

function prototype.

Hello.well,i'm a new forumer.i'm still new to the C++ programming and already got assignments that i could'nt think how to do it.So,i really hope that some of y...

[1 reply] : This is so basic there isn't much we could do besides just give you th... (by Duthomhas)

by cplusplusisfunlol

class function calling a function from another class

int main () { calls class1::test } class 1 { public: void test(); } void test() { calls class 2::test2 } class2{ public: test2() } void t...

[3 replies] Last: Hello.well,i'm a new forumer.i'm still new to the C++ programming and ... (by scorpion09)

by steinzfan

Trying to complete a linked list (implementation file)?

Here's what I'm given: ********** struct Node { void* data_; Node* prev_; Node* next_; Node() { data_ = 0; prev_ = 0;...

[no replies]

by Beauti

Just Starting to Learn C++

Good Evening Everyone; I am just starting to learn C++ and I would like to know where to do I go to enable the numbers that show which line a code is written...

[2 replies] Last: Man That was so simple.... Thank you Helios (by Beauti)

by cdale2008

calculate the number of calories in a sandwich

Hi i'm doing an introductory course in c++ and having a problem with this assignment: Write a program that computes the number of calories in a peanut butter a...

[1 reply] : You have the right idea, but you're not expressing it properly. Your ... (by helios)

by Lorena

About the C++ timer

So am trying to write a program that 'allows' the user to enter data for x-seconds, stopping the timer if this happens, and doing something else if this is not ...

[1 reply] : There is no timer in C or C++. The OS supplies one, though. If you ... (by Duthomhas)

by monsterman89

txt application

how do I create an application that is capable of reading in from a text file (.txt extension) using "fstream"?

[2 replies] Last: I also recommend you look at std :: deque for storing the lines.... (by Duthomhas)

by grilledtuna

Value in array wont "delete"

Hello, I'm writing an abstract program that keeps a record of Names and Phone numbers. I've created a Record class that inherits a Name and Phone class. All ...

[4 replies] Last: Nevermind figured it out. I did this: List .setLast("DELETED");... (by grilledtuna)

by SteveWantsalatti

Having a decent amount of trouble trying to seperate source files.

So I'm trying to do an example in C++ for Dummies about making a header file and I keep having problems compiling it. I'm using Dev C++ and I have three separa...

[9 replies] Last: OK. Maybe not too MS biased. The C++ Dummies All-In-One Desk Reference... (by scottintampa)

by levone

std::list random access iterator?

is there a way to use a random access iterator with an std list? since apparently a list won't allow access via array schematics.. i have to use iterators.. h...

[2 replies] Last: deque class then is what im gonna use. just did some test and it seem... (by levone)

by Pirateshaveparrots

Just started out learning C++

Hello. I'm new to these forums much like I am to C++. I'm likely to have many novice questions, and I apologize in advance for them. So, I'm just starting ou...

[18 replies] Last: Greywolf: - I didn't notice the dates either. It's only 10 days anyway... (by chrisname)

by karalius

Random funtion???

Do you know are there any random funtions in c ? if yes, how can i use it?(rand () funtion)

[6 replies] Last: thank you so much for your answers... (by karalius)

by chrisname

Detect mouse movement?

I know I've asked quite a few questions on this forum, but, here's another. Hopefully my last for a little while at least. If anyone knows how to detect the ...

[17 replies] Last: It worked! Thanks! Now I'll add more colours and get my own little ... (by chrisname)

by audit

returning a variable's name as a string

Is there a function or a way to write a function that will return the name of a variable as a string? What I want is to create a function which when given ...

[6 replies] Last: Here's an interesting (?) variation: #include <iostream> #def... (by Hammurabi)

by easyz

building a spiral

i got stuck in building a spiral she has to be between 1 and 19 if i press 1 iget a spiral 4X5 this is what i managed to do: if (option==2) printf("Ente...

[9 replies] Last: any help ? what's the basic logic in building that ? how do I start ? (by moav)

by wizard25

Outputting random lines from a .txt file

Hey How do you output 5 random lines of text from a .txt file on C++ ? Thanks

[1 reply] : Sigh. http://www.cplusplus.com/forum/general/11237/ (by Duthomhas)

by chrisname

More 'standard' system("cls")?

I've been using system("cls") to clear a DOS window for a while now, but I don't want to use system() commands any more. Is there a more standard way I could do...

[19 replies] Last: Thanks for the help. The reason I printed fifty spaces several time... (by chrisname)

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Beginners - May 2009 (Page 5)