49,757 Topics
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| | I have a program that will populate a 2d array with random numbers and sort it. But I need it to exclude elements with a zero subscript, and I can't get that to work. Please help. { double arr[rows][cols]; int i, j, temp; int *arr_ptr; arr_ptr=(int*)arr; srand(time(NULL)); for(i = 0; … |
| | error C2011: 'Item' : 'class' type redefinition well... i don't know how to explained this...this error just come out of nowhere, or i can''t find it...and i not really know what it's mean... this Item class are base class for 3 sub class, and it was no problem before i … |
| | Well basicly the problem is that i have to call the function push while the char that is asked for is not '0' then i have to send the modified "*top" and "*temp" into the function POP so that i can show the values and do the deleting of the … |
| | Hi, Could anyone explain to me why this works: [code = c++] #include "stdafx.h" #include <iostream> using namespace std; class A { public: A() { a = 0; } int a; }; void change(A* source, A* destination) { destination = source; } int _tmain(int argc, _TCHAR* argv[]) { A* ob1 …  |
| | Hi All, I have created a class [B]person[/B] and derived [B]patient[/B] and [B]doctor[/B] classes from [B]person[/B]. Also I derived [B]student_patient[/B] and [B]emp_patient[/B] classes from [B]patient [/B]class. I want to make a small calculation at [B]patient[/B], [B]student_patient[/B] and [B]emp_patient[/B] classes by using a function from [B]doctor [/B]class wihch is [B]get_fee_of_doc[/B]. I …  |
| | Hi Guys I am new at this, and I despeartely require some help. I basically need to write a program to read a text file, alter a single value and write it to a new file. I have done some stuff so far which seems to be correct, however, nothing … |
| | please can anyone explain the reason for the following behavior #include <iostream> #include <boost/enable_shared_from_this.hpp> using namespace std; class A; typedef boost::shared_ptr<A> A_sptr_t; class B; typedef boost::shared_ptr<B> B_sptr_t; class A : public boost::enable_shared_from_this<A> { public: A() {} virtual ~A() {} }; class B : public A, public boost::enable_shared_from_this<B> { public: B() … |
| | hi everybody, I am blocked on a strange error. I need to use md5sum library. Visual c++ can read md5sum.h but it throws some errors when tries to compile it, it seems that visual c doesn't identify md5sum.cpp where constructors and functions are declared. I have already changed include library … |
| | I am doing a program to print out the shortest path between locations. I implemented it using a 2D array for the adjacency matrix. However, when I run it and input the start and end locations, nothing else happens. [CODE]#include <iostream> #include <limits.h> #include <assert.h> #include <cstdlib> using namespace std; …  |
| | I have a question we are suppose to input a seed value for a randon number generator, but I am having issues with using the srand(seed), but the problem is I am getting the same output every time for the random numbers how can I do it with the user … |
 | Hi, I want to Load .dll library on my program. I was using LoadLibrary and GetProcAddress which is tedious work. I saw somewhere Idea of using .lib files but have no clue. I have used google but I got lost. Please help me :( Codeblocks 8.02 MINGW 3.4.5 Windows Vista |
| | Hello all, I have a [B]base class[/B] which is called [B]person[/B]. I derived a class from[B] person[/B] which is called [B]patient[/B]. My question is can I derive two more classes ([B]patient_student and patient employee[/B]) from [B]derived class patient[/B] or should I derive them from [B]person[/B]? If I can derive classes … |
| | Hello everyone, I am dealing with this problem that I receive a buffer from a client, and when I try to output what the client sends to my program, it only shows everything till the first zero character. [code=C++] #include <cstdio> #include <winsock2.h> #include <iostream> #include <string> using namespace std; … |
| | Can someone please conver the following code into a sequence diagram for me? the 4 instances and classes with the life lines are: `theUI:UserInterface`, `theCashPoint:CashPoint`, `theActiveAccount:BankAccount` and `transactions:TransactionList` void CashPoint::m4_produceStatementForBankAccount() const { string statement( p_theActiveAccount_->prepareFormattedStatement()); theUI_.showStatementOnScreen( statement); } string BankAccount::prepareFormattedStatement() const { ostringstream os; //account details os << prepareFormattedAccountDetails(); //list …  |
| | Please can you help me with the following question? An iterative version of the C++ function TransactionList::getTransactionsForDate is given below. It can be applied to any list of transactions and returns the list of all the transactions for the given date. It only works when the date given is valid. … |
| | well here's my story...... im 16 ..... and i do wish very much to learn how to work with computers..... but the thing is i don't know from where to start......... i know nothing about programming ...... and i want to use my intellectual capacities to solve problems and mostly …  |
| | realy i did not understand that what function over riding means can any body help me for that please |
| | Hello everyone. I am pretty lost when it comes to C++, but for class i have to create this mortgage calculator. I think i have this part of the assignment done, but i can not figure out how to convert either the last number, or the user input to a … |
| | and how i would go about fixing it? main [code] #include <iostream> #include "Format.h" #include <fstream> using namespace std; int main() { Format format; //string word; char in; ifstream infile; bool a=true; bool b=true; bool c=true; while(b==true) { cout<<"to quit type 'q'\n" <<"enter 'c' to get from console\n" <<"enter 'f' … |
| | Hi, Just wonder is there any way to display enum as enum not as integer? Thank you. |
| | Hey, I'm having some troubles with my hangman game i'm making. I want it to display dashes for the number of characters that there are in the word which that part works fine. but then if they guess the right letter, I want the dash to be replaced with the … |
| | Hi I need some help in writing a c++ program that will read a file and delete a specified number of lines e.g. say i have data file with numbers 1 to 100 i.e. 1 2 3.... 100 say i want to delete top ten lines and then save the … |
| | Hi, I am looking for a C++ library for 3D data visualisation. The main features that I'm looking for are 1. Capability to handle large data sets(MB's to few GBs) 2. Interactive 3D visualisation 3. Slicing through the data cube 4. Real time visualisation from buffer without having to save … |
| | hi all, i am not-so-new to C++, but then ,yea, a newbie XD ok, here is the question. first i have a base class call Item, and it have 3 sub class. Now i need to make an array total of 100 item, that can store any of that 3 … |
| | Hello I have 2 functions that are just playing up. One is a function that takes in a string & should output the string backwards. [B]Problem:[/B] the syntax to insert a character into the string is wrong, I dont know the correct syntax. The other is a function that takes … |
| | Hi Can anyone tell me please How i can make program in C++. Thanks. |
| | I got a little problem I am making a little admin tool for my server that you can edit player stats and things with it. Problem is if I like make string Test and assign value "Hi" to it. How can I use the string inside my IMPORT INTO statement. …  |
| | hi frnds, how can we connect to a sql server database using C++ program.can anyone pls post a code for this ... |
 | Hello everyone, I'm writing a code and in there and I need to convert a char which contains any of "+", "-", "*", "/" into a real operator. As an example let's say I have: [code] char myOp = '+'; int op1 = 10, op2 = 20; cout << op1 … |
| | i am little bit confused to access the class function through pointer. Whether Consider the pointer variable Class Ball { Void Do() { } } Void main() { Ball &r = *(new Ball ); } Can i access via r.Do(); r->Do(); Which way is correct and please explain me why …  |
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