Agni

It worked for me without any problems.

[URL="http://www.daniweb.com/forums/thread70096.html"]http://www.daniweb.com/forums/thread70096.html[/URL] some of the books mentioned in this sticky might be freely downloadable, some not.

This might be of help [URL="http://docs.python.org/library/pickle.html"]Pickle[/URL]

yes please post the code and somebody will def help you. Don't get discouraged by errors, everyone goes through them and in the process of fixing them you get to learn a lot more than what's given in your book. One piece of advice is that don't try to rush …

see this thread [URL="http://www.daniweb.com/forums/post451380.html#post451380"]http://www.daniweb.com/forums/post451380.html#post451380[/URL]

and your attempt is......

load the names in an array or vector and then do a 'find'?

and this will help everyone a LOT !!! [URL="http://www.daniweb.com/forumsannouncement8-3.html"]code Tags[/URL]

I think the problem is that you are not setting the 'next' pointer of the last node to NULL. It cab be containing some garbage and giving unexpected results. Can you try this. [code=c++] void add_to_end(int data) { cout << "add to end" << endl; node *temp; if (hd == …

There's a post at the top of the forum [URL="http://www.daniweb.com/forums/thread78223.html"]Read This before posting[/URL]. It talks about using code tags and posting well indented and easy to read code. Please go through it.

Hi Daniites, I've been thinking long of joining some open source project but i just don't know how i can do that. If someone here has worked on one can you give me some insights? I need to know how these projects work, how the work is distributed, how is …

are you 'including' the class declarations in main.cpp ???

[code] for(j=0;j<5;j++) { cout<<"The name List\n"<<name<<"\n"; } [/code] somehow i didn't feel like replying because it seems like you didn't try to debug this on your own even once before shooting a post here. But just in case its genuine, while outputting also you need to use the subscripts, like …

Why don't you write a test program to check it?

[quote] fileList[i] = new std::ofsteam(argv[i]); [/quote] and you can change 'ofsteam' to 'ofstream' if its like that in your original code too.

[code=c++] savings = new Account[arraySize + 10]; while(k <= arraySize + 10){ strcpy(savings[k].accountNumber, temp[k].accountNumber); savings[k].balance = temp[k].balance; strcpy(savings[k].customer, temp[k].customer); k++; } [/code] assume 'arraySize' = 5 so savings is an array of length 15. say savings[15], which means savings can go from savings[0]-savings[14]. In the while loop you have k<=15, …

you can use the istringstream class and convert string to int [code] string a = "byebye"; istringstream s(a); int i = 0; s>>i ... [/code] I think you can try this..

>it is not giving me the right answer and what is the right answer?? what is the program supposed to be doing?? The header doesn't say what it does and i don't want to check the code to find that out.

for a 2-dim char array values can be extracted like [code] char *a[] = {"tom","som"}; cout << a[0] << " " << a[1] << endl; [/code]

for starters you can create a 'login' class, which has member variables username and passwords. When the user logs in you create an object of this class with the provided username. you can store the existing data in some flat file and load it at the time of login and …

Sir, Since you are new here and this is your first post let me bring to your notice that no one here will give you a code on a platter. This is not a code writing machine here. Please try it on your own and post the code if you …

[QUOTE=JAGgededgeOB172;782668]T [code] while(!inFile.eof()) { getline(inFile, resident[i]->name); getline(inFile, mySSN); resident[i]->SSN = atol(mySSN.c_str()); getline(inFile, myage); resident[i]->age = atoi(myage.c_str()); getline(inFile, resident[i]->address); getline(inFile, skip); i++; resident[i] = resident[i-1]->next; } resident[i]->next = NULL; [/code] I try compiling and it passes again without errors, yet it is still crashing. Is there anything wrong with what I'm …

can you post the function code here?

well when you create the object of the child class the base class ctor gets called and since you have declared your own ctor the compiler doesn't give you a default ctor. In the definition of the child class ctor you should pass the required value to the base class …

i actually fail to understand your logic for deletion [code] q=p->link->link; p->link=q->link; q->link=NULL; free(q); [/code] 1> why are you checking for p->link->NUM and not p->NUM directly? 2> when you find it, you assign q to p->link->link and then free(q), shouldn't you be freeing p->link instead?

[QUOTE=Salem;776298]- Learn to program (stuff which is relevant to all programming - eg. [B]design[/B]) [/QUOTE] Strangely though they teach us to code a lot more before they even touch the design patterns. I find it very difficult to grasp design patterns due to sheer lack of direct application. The product …

Try [code] system("sh test"); [/code] [code] system("test.exe"); [/code] i think you will need the header 'process.h' for this.

1> i dont know if this will work(i mean the vector thing, not struct way). but assuming it does, one issue i see with using a vector is if you have to verify that a particular point is on the right path or not. Suppose you have a maze and …

what kind of functions does that API provide you? createNode, deleteNode etc.? can you post the function signatures here? Are there any functions which return pointer to a node?

Wish Everyone on Dani a great 2009 :) ... Lets all of us learn more and share more and make this new year a great One !!!!... had a wonderful time on daniweb till now, hope to have many such years... Good Luck...

my 2 cents: -> you can declare pointers and references to the abstract class to use polymorphic behaviour

did anyone notice.. this thread has been viewed '2,484' times .. strange :) ... ok i checked most such old threads have been viewed a lot of times .. seems not so strange now ...

my current favorite: [code]#include <pthread.h>[/code]

Hi Guys, I'm trying to create my own DBMS. For now i want to create a simple one where i can 'create' tables, 'insert' data and do a 'select' for all values(no where condition as of now). Very basic features. This is the first design/pseudo code that i have come …

1>[B] Please use codeTags to make it easier for everyone to read your code.[/B] 2> i dont see a problem here. Is there some more code? Where do you initialize the variables? Post the full code. 3>[quote]But my best guess is the friend function doesn't have access to the private …

Can you rephrase your question? i can understand it in parts but its not very clear what you have and what you want to do.

This code here is giving segmentation fault. Any clues why? also any general tips for writing good multi-threaded code are welcome. [code=c++] #include <windows.h> #include <process.h> #include <iostream> using namespace std; unsigned __stdcall Display(void* p) { Sleep(500); cout << "Display" << endl; cout << *((int*)p) << endl; return 0; } …

It could happen if 'vertexArray' pointer is containing some junk. When you declared it you should assign it to NULL explicitly. [code]float* vertexArray = NULL;[/code]

like i pointed out in the thread below this, where are you assigning anything to 'Applicant item;', ok so you changed it from a pointer to an object but where are the values? the 'app' object you create in main, should be created inside the while loop, then passed by …

[code]point->item->return_value();[/code]should give a segementation fault. i saw you 'Promosion::linkup' function and nowhere you are assigning anything to the 'Applicant *item;'. it will be NULL or may be garbage when you access it. 2>system("pause"); is not a good way to do this, you can find a lot of threads here that …

Please see my comments in the code. [CODE=c++]//Structure definition Person. //contains definitions for Functionality. #include <iostream> #include <cstring> #include <string> using namespace std; struct PERSON { char firstName[20]; char lastName[20]; char address[50]; }; const int MAXPEOPLE = 2; PERSON people[MAXPEOPLE]; PERSON p; // you dont need this global variable [/CODE] …

and the errors are?? .....

[QUOTE=Ancient Dragon;748511]>>I did was to Initialize char * string1 = "longer than string2" and evrything else the same and it didnt work either I didn't work because you can't change string literals, which is what you attempted to do. But you could have done it like this: [icode]char string1[] = …

what's the type of 'IClassFact' , if its another class is the header file included? compiler is not able to deduce the type.

comment out [code]virtual void mission();[/code] and try and give different names for base class and derived class 'name' variable to see the difference.

I don't see a problem at all. The only reason could be (assuming that the file is very much present in the same directory where you are executing this code) is that you might entering 'h' instead of 'H'. Are you not getting the 'Hello.' on the screen either?

what he meant was base* b = new child(); then push_back(b) into the vector. however for dynamic polymorphism you should keep functions which need to be derived from base class as virtual, so that when you call them with the base class pointer it calls the correct child class function. …

Why are we not collecting the inputs into some 'double' variables directly? why so many string operations?

you can do that, no issues but your example is not the best one. If its the same object you might as well use the 'this' pointer. You can try looking at some standard copy constructor declarations. probably the most basic and important use of a const object reference.

if you want more details let us know which compiler or IDE you are using. if someone here has used that you might get the exact ans and explanation.