51,593 Topics
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 | I am currently making an IRC bot in C++, and i am getting an error from trying to bind the socket, error 10049: WSAEADDRNOTAVAIL. I am new to sockets in C++, so I was wondering what I did wrong. I am running Windows Vista Home Premium and compiling with Bloodshed …  |
 | Where is the wrong??? Why does not this program work?? [code=cplusplus]#include <iostream> using namespace std; // Function prototypes. int resverseDigit (int); int main() { int num; // Test function resverseDigit(num). cout << "Enter the number: " << endl; cin >>num; return 0; } // End of main // Function Definitions … |
| | I need help.... I have a problem about the program/code for the recursive function for power...for example b to the n power, where b is a float and n is an integer... thank you...hope you can help me with this... I need it tomorrow...  |
| | please help me with my exercise... please give me sample on recursions with Fibonacci and Lucas number... thank you very much.... |
| | Hey guys. I am trying to make a program that prompts the user to enter in a directory path, and then the program goes to that directory and displays what is inside. [CODE]string cString; cin >> cString; system("cd " cString); //this is what i am having trouble with. system("DIR"); system("PAUSE");[/CODE] …  |
| | I am trying to define an abstract overridable method isKnownWord(), i am recieving errors but i cannot see where they are coming from. Can any one enlighten me. [CODE]public: spellChecker() { wordList=NULL; } void addWord(char* aWord) { int word_size=strlen(aWord) + 1; char* dest=new char[word_size]; strcpy(dest,aWord); wordRecord* newRec=new wordRecord; newRec -> …  |
| | Hey guys. I am using windows xp, and Bloodshed Dev C++ compiler. I am making a simple program. The CPP file and EXE file work fine on my computer, but do not work on any other computers, no matter what OS (Ive tried on xp, vista, linux and 7). When … |
| | Hey Everyone. Does anyone recommend any particular book for learning c++ ? Thanks. |
| | I'm juz wondering how do I send a single value to a 8-parameter function... [CODE] void enterdata1(int &row1col2) { cout<<"Please enter the number for Row 1-Columm 2"<<endl; cin>>row1col2; if(row1col2 != 1 && row1col2 != 2&& row1col2 != 3 && row1col2 != 4) { cout<<"Please enter the correct number (Which is …  |
| | Please explain. Does it automatically include the default constructor? |
| | Hi, I have a problem with a program that shows the contents of a file, but when it process the data to figure out the sum, max, min and average, that values are wrong. Any ideas? Thanks Liam [code]// CO1401 Reassessment 2008/9 //Liam Moncur BSc Computer Networking #include <iostream> #include … |
 | Hi friends, I am planing to create and vb.NET application in which i have to call some existing vc++ codes... :rolleyes: After some initial reading i found i have to create some .dll and then call them.. but i cant able to do so with existing big code.. I need … |
| | I understand the concept but i don't know when to use and what my teacher expects when he says overload certain operators. |
| | I am still new with fstream topic and I have some enquiries about using it. Based on the tutorial shown, I managed to understand a little about it but when I copy the first few lines, #include <fstream.h> void main { ofstream file; file.open("file.txt"); //open a file file<<"Hello file\n"<<75; //write … |
| | I was wondering if you guys might help me figure out how to make a vector of vectors like so, The user will name the set say 'A'. And then using 'A' as a key you can then find the set name and add say 'a', 'b' to it. How … |
| | Hi everyone I couldn't find the actual logic behind below two problems: [code](1) how to capture number of occurrences of 3 between 1 to 100? and (2) assigns a function to a pointer and subsequently call it.[/code]all problems are in c++ As I'm new in this field so,please help me … |
 | I cant figure out how make the Button visible proccessing WM_PAINT myself, it just get visible after pressing it.. [code=cplusplus] //THE WM_PAINT message: case WM_PAINT:{ RECT myrect; //get the device contest for the current window------------------- gsp_hdc = GetDC( hWnd ); if( !gsp_hdc ){ MessageBox( NULL, TEXT(" Error Getting DC!"), TEXT(" … |
 | Hello, I'm learning C++ and i want to know how i can build a program written in C++ that can execute other programs, like firefox. Thanks, Nathan Paulino Canpos |
| | Hello, I'm learning C++ and i want to build a simple program that copy files, remember that i want a program that copy all types of files, not only *.txt or only binary files. Thanks, Nathan Paulino Campos |
| | I have a vector which i wish to fill with char's, so that each char is then a pointer to a vector. vector<char> list; list[0] = 'A'; list[1] = 'B'; How do I make 'A' and 'B' pointers to other vectors? [CODE] void Create_Pointers(char pointer_name) { pointer_name = new vector<char …  |
| | Hi, I'm trying to read the HTTP URL string using C++, and I was wondering if it is possible. Here is my situation: There is a server listening to a socket. This socket receives an HTTP Request such as: [url]http://localhost/MyApplication[/url] ? userID = x All I need to do is … |
| | Hello, I'm building a cp like program and here is the code of the file copy, i'm in the beginning, i'm going to put the error messages when i be in some good state of the program: [code]#include <iostream> #include <fstream> using namespace std; int main( int argc, char* argv[] … |
 | I can't get this code to work... [code=c++] typedef bool (* ProcessCallback)(DWORD ProcessId, DWORD ParentProcessId, TCHAR * Path, void * ImageBase, DWORD ImageSize); bool EnumProcesses(ProcessCallback Callback); // --------- class cProcessList { public: struct sProcess { DWORD ProcessId; TCHAR Path[MAX_PATH]; }; std::vector<sProcess> List; bool operator()(DWORD ProcessId, DWORD ParentProcessId, TCHAR * Path, … |
| | Hi, I've written a program that uses two objects that look like the ones below, and I was wondering why i would need an assignment operator and copy constructor for either of these classes. Are strings like[ICODE] char*[/ICODE] (dynamic memory)? It would not be difficult to write these methods, I'm … |
| | There is a pure virtual const function declared like wayyyy up the inheritance hierarchy that I need to override, but I would like to override it with a non-const function. I tried and it just complained that the pure virtual const function const was not implemented. I got around it … |
| | How do I make a line of code such as this possible? [code] LTEXT spnV,IDC_STATIC,57,10,200,8 [/code] |
| | input qty while qty > 0 input size call Calculate Scrap using 10 to get scrap 10, qty needed for 10 call Calculate Scrap using 25 to get scrap 25, qty needed for 25 call Calculate Scrap using 40 to get scrap 40, qty needed for 40 if scrap 10 … |
| | Is there any naming convention for C++ which is widely used and accepted?  |
| | Hi, I have a small doubt in C++ assignment. I have been assigned to do seat reservation in a certain foodcourt. I have already done the seat reservation thing using basic array and function. But my program can only do manual seat reservation. Which means the user gets to choose … |
| | We need a good open source issue tracking program which is compatible with SVN and windows platform. We are developing programs with VS 2005. Do you have any suggestions? Thanks. |
| | question 1 : I know that c++ could write/ read excel file by changing it into csv format. however, if the content of a cell has a "," inside, then we may have problem when we are reading it as the content may be split into two parts. So how … |
| | Hello My task is to writ a function that takes in a char array & the array size as its parameters & reverses the array contents. I cannot use another array to reverse the contents. I am using insert & erase function to reverse the array,[B] although I dont know … |
| | In visual c++, what is the difference between these three: WindowClass.style = CS_HREDRAW | CS_VREDRAW; //Found in winmain() UpdateWindow(hWnd); // Also found in winmain() WM_PAINT //It is a switch case in funtion winproc() I unerstand that all three of them does something like to draw/redraw the client window/window. But can … |
| | Hi:) I have a problem about DB navigator usage in SQl with borland c++ builder ? How can I use C++ codes with sql?  |
| | Hi, I am playing with metaprogramming. I have this problem: [CODE] template<bool f> class A { public: void P() { cout << "f = true" << endl; } void Q() { cout << "Q" << endl; } }; template<> class A<false> { public: void P() { cout << "f = … |
| | i want to write a little client-server program. one part will be on domain controller and another on user station. Client part must load before user login. it will make some mathematical operations and send the result to server together with username and password. server part must perform the same … |
| | can someone help me, i want to use c++ and MS-Access as the database so when i use the SQL component instead of the Table i get an error |
| | For lack of a better workflow I decided to start my project off by focusing on restoring it's state in CWinApp::InitInstance() and saving its state in CMainFrame::OnDestroy() as I put in data structures. One of the items to restore/save is the simulation time. In fact the app pretty much can't … |
| | I have been working with pthread_cond_t and associated functions and I read that usually a mutex is used in conjunction with the condition when calling pthread_cond_wait or pthread_cond_signal/broadcast. The online texts only mention that the mutex is used for 'predictable behaviour'. Does this mean that there's no need to use … |
| | Hi all, I'm having trouble debugging with the MinGW Compiler with Netbeans C++. After having lots of trouble getting the make program to work by replacing it with MSYS, I am now in need of help with the debugger. I have downloaded dbg.exe the help has said. I can't even … |
| | Current Code: [CODE] void findMode(int *array, int size) { int array2[size]; int count; int x; int mode = 0; for (count = 0; count < size; count++) { x = array[count]; array2[x] = array2[x]++; } for ( count = 0; count < size; count++) { if (array2[count] > mode) mode … |
| | Can any one suggest me some online material for "List with static array" example codes ? |
| | [code] #include <iostream> #include<math.h> using namespace std; class Vect3D { friend Vect3D& operator*(double, const Vect3D&) ; friend ostream& operator<<(ostream&, const Vect3D&); public: Vect3D(); Vect3D(double, double, double); const double& operator[](int i) const; double& operator[](int i); Vect3D& operator+(const Vect3D&) const; Vect3D& operator+=(const Vect3D&); Vect3D& operator*=(double); Vect3D& operator*(double) const; bool operator==(const Vect3D&) const; … |
| | Hi im a new visual c++ programmer... i have a program with Form1 and Form2. When i click on a Form1's button Form2 shows and then Form1 hides. But i want to know how can i make Form1 show again when Form2 enters the event Closing. Thanks!! Also how can … |
| | I have a problem with a piece of code where I ask the user to type in a filename and then I need to store the number contents of the file in an array, and then use whats in the array to find the sum of the numbers, the biggest, … |
| | I'm having problems updating a multimap. I need to change the key value. I have found various examples but none seem to work. Any help gratefully received. Below a simplified map test bit of code. I had hoped the line between the commented asterisks would do the trick but seems … |
| | I am very interested in ASM I wana learn write it and read it like a pro.. Now i'm in CLASS issue I want to know how c++ Class definition looks in ASM code.. for example this code [CODE] class MathFuncs { public: int a,b; private: void SetVars(int,int); }MathObject; void …  |
| | Ive got a class which i want to use within a c# windows application, It sounds really simple but where do i put the code which creates the class object and the code that uses the class? Ive tried it in most parts of the code but after creating the …  |
| | How to link the ws2_32.lib in the visual studio because i am new to this ..so can u help me.... |
| | I'm a newbie to c++, and as I'm reading my textbook, I'm applying different rules to this program for converting gallons to liters and vice versa, My question is how can I check that the user input is numeric and not a string of characters? I've tried several things with … |
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