51,593 Topics
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| | Hello guys , i searched for over 2 hours how to add a messagebox when i click my button Visual C++ 2008 , in a windows app .. and i cant do it .. if any1 knows how to , please post and if anyone knows any guide or here …  |
| | Hi all, I am new to linux and got problem with pthread_mutex_trylock(). I have used mutex in my code. When I try to call pthread_mutex_trylock() on RECURSIVE type of mutex it overwrites adjacent memory location (that is global variable of type structure say x, memory allocated using malloc()). Actually I … |
| | Hi, I am getting "Segmentation fault" error in line number in the following function. [ICODE]deque <string> text; deque <string> text_1; int circuit::writetofile(int maxno,char *fname) { /* Before writing the clauses correct the line p cnf */ //deque<string> text; std::string s,t; /* Counting the number of original clauses in the file …  |
| | Hey guys, I am working on a fraction program where you can add, divide, subtract, multiply, and divide and it uses addressing. Anyway I got it to work except when I added an error message if to make sure that the 2nd Numerator, 1st and 2nd Denominator are not zero. … |
| | [CODE=Cplusplus]#include "STDAFX.H" #include <iostream> #include <iomanip> #include <string> #include <fstream> #include <cstdlib> using namespace std; class Subject { private: string code; int cu; char pf; public: Subject(void); void setCode(string); void setCU(int); void setPF(char); }; class Student { private: string name; int count; int totalCU; Subject subjects[4]; public: Student(void); void setName(string); … |
| | Hi, which C# enviroment (i like to keep compiler, editer and debugger in the same program) can you guys recommend? |
| | I am not only new here, but, I am a complete newbie to programing. I was on the hunt for some beginner tutorials today on the web. I found what I thought would be a simple yet in depth problem. I spent the last hour making sure that I had … |
| | Hi guys, I have a question concerning the following code I have written for a final project in an entry level C++ course. My task requires 3 level hierarchy (which i have) and use of polymorphism. The program works in this state, but I dont think I am actually exercising … |
| | I have to write a function that takes an input such as this chevrolet, MALIBU and makes chevrolet into CHEVROLET and MAILIBU into Malibu I am having no trouble with capitalizing the CHEVROLET but when it comes time for the Malibu to be corrected it doesn't come out right. directions …  |
| | i am at uni an i have a project in which i have to create a backgammon game. i have created the board the dice and the moves, now i need to do the legality of the moves i was wondering if anyone had an idea of how i would … |
| | I'm working on a program which requires me to read in a file of input and organize it by calling a few functions. The first function I'm writing breaks up the input and assigns it to the appropriate array. For some reason what I keep getting back is random values. … |
| | I don't understand what getstream is about nor do i know how to change a certain part in an array to something else. please help me. [code] // ************************************************************************** // // Airplane.cpp // // Program that displays the seat diagram for an airplane and allows the user // to select … |
| | Plz provide me complete discription of four algorithms used for sorting arrays e.g bubble sort. |
| | ([I]Invoice class[/I] Create a class called Invoice that a hardware store might use to represent an invoice for an item sold at the store. An Invoice should include four pieces of information as instance variables— a part number (type string), a part description (type string), a quantity of the item … |
| | Forgive my ignorance, I am learning. I am writing a C++ BlackJack program for school project. I have googled and incorporated the following code into my project. My results are I am getting a value for the cards of 2 - 5 and i do not understand why. If someone … |
| | I have an assignment that needs me to read in a file that is a source code in a .txt file. Then read in a file listing c++ keywords. Examine the first file for those keywords and convert them to lowercase and export the new file into a .cpp file. … |
| | i want to read to a 2d-array from a file, but for some reason the file is not opening (at least thats what the output says) [code=cplusplus] #include <fstream> #include<string> #include <iostream> using namespace std; int main(){ string filename; cout<<"Please type the name of the file"; cin>>filename; fstream file(filename.c_str());//same result … |
| | Hey guys, How do you handle exceptions in your programs? For instance, I have this function: [code=cpp]bool load_file(const char *filepath, std::string &dest) throw (std::bad_alloc, std::runtime_error) { using namespace std; ifstream file; file.open(filepath, ios::binary); if (!file.good()) { throw runtime_error("Couldn't open the file"); } //get filesize in bytes from ifstream //seek end, … |
| | Hi, I am looking for some good examples on calling c and C++ apis inside python code. Can anybody share good examples or links. Thanks, Anil kumar |
| | hi, i'm new here and got a really simple problem. i need to parse a conf file, where # is a comment, like this: [CODE] # Begin conf VAR1 = VAL1 VAR2 = VAL2 # end [/CODE] i want to skip all comments and read VAL1 and VAL2 to members … |
| | i need help on how to create a C++ program that will input string of characters and will count the number of different vowels, consonants and symbols included in the string. Input a string => "program!" total letter 'a' => 1 total letter 'e' => 0 total letter 'i' => …  |
| | I have two MFC Window Form. The main window will call the second window to process a necessary input then the result generated by the second window should appear in the main window's edit box. But the problem is I don't know how to do it. Does anyone knows how … |
| | Hey guys I need to copy multiple string arrays into one array to use to display output. I need to copy the name, addr, telephone, carinfo, payment array to the output array. How would I go about doing that. [code=cplusplus] #include <iostream> #include <iomanip> #include <fstream> using namespace std; void … |
| | Hi all, So I've got an assignment of creating a priority queue using a heap data structure. I've read lots of pages online about the heap data structure, but I keep coming up with questions. In my class, I got the impression that a heap was structured similarly to a … |
| | I cannot run my application on another computer when I compile it in VS2008. Error: "This application has failed to start because the application configuration is incorrect." and I have define WINVER to be 0x0400, and it is compiling in release mode. and this is NOT .net |
| | Hello all. I have a problem with a socket server program I writing. The server manages to set up the socket just fine, however, it now needs to be able to take in input from a client. I using the following command to receive information and print it out on … |
| | Suppose I have a dynamic array.(trees) The user enters the number of times for the dynamic array to loop based on int num. He has filled the array, say num=3, so he has entered the age of 3 trees into trees[i]. Now he wants to display the age of all … |
 | I am in a beginners programming course, and we have been doing C programs up until now, and the first C++ program we have confused me a bit. We have to make a simple tic tac toe program that plays against you [it doesn't have to be great at playing, … |
| | Hello, am new to this so please bear with me. I'm working on a windfarm simulator in C++, it has to read in data from a .csv file and calculate various power values. Anyway that's beside the point. The problem I'm having with is the 2 Dimensional Dynamic Array that … |
| | I have started the program but I need help with createing a class which works for both integers and characters. [code] template< class T > class List { private: struct node { T data; node * next; } node * head, * tail; int size; public: List(); void Push_Head ( … |
| | Hi, Thank you for helping with this. I basically have to encrypt a file in where the user enters the file name & enters a name for the output file. The encryption is based on the password the user enters. It is a case situation, that being said, if the … |
| | this is my program [code=cplusplus] // // custorderscf2.cpp // #include <cstdlib> // student ...... Jones, Patricia #include <iostream> // section ...... MW row .... 4 #include <fstream> // due date ..... xx/xx/xx #include <iomanip> // refer to ..... Gaddis Ch3 void SetPrecision(int); // procedure prototype using namespace std; // avoid … |
| | I need to know how i did? Any review will be appreciated... [CODE]/**program description: * * this simple program represents * the basic concept of threads. * main() process will create a * thread that calculate numbers * while main() output the results. * main() and threadProcess() share * share … |
| | Hi, I'm doing this programming exercise for my C++ class. I'm using Microsoft Visual C++. for some reason, the program wouldn't save my data. Can someone please take a look at my code and tell me what I did wrong? [code] /* Chapter 12 HOMEWORK Dung Tran CS 116 C++ …  |
 | I'm trying to implement a simple version of Wari logical board game. My implementation supposes to allow two humans to play the game. I have created array of 12 elements, each element represent the square. Every square has a number of stones. My problem is that I don’t know how … |
| | Hi, I am new to Visual Studio 2005 and wanted to package up my code into a .EXE file. I also have other code not specific to Visual Studio that I want to package(LabWindows CVI). Can anyone give me instructions or point me in the right direction. |
| | i have following code, i am starting a college project and need help [CODE]#include "stdafx.h" #include <iostream> #include <string> using namespace std; class ba146{ private: int capacity; int totalSeatWindow; int totalSeatAisle; int totalSeatMiddle; public: string timeOfArrival; string timeOfDeparture; string departureCity; string arrivalCity; string flight; string seatType; int occupiedSeatWindow ; int … |
| | What is the sequence for inorder, preorder, postorder for ----------------------A--------------------------- ---------------------/--\-------------------------- --------------------B---C------------------------- -------------------/-\--/-\------------------------ ------------------D-E-F------------------------- ----------------/-\-/-\--------------------------- ----------------G-----H-------------------------- Is it correct for Inorder:GDBHEAFC Preorder:ABDGEHCF Postorder:GDHEBFCA if someone out there can help that will be awesome.  |
| | I have a problem like i need to include a different header files depending on the linux kernel in a .cpp file. I have to check the linux kernel version and include the headerfile depending on that kernel. How can I do that? I have ARCH variable in Makefile which …  |
| | I am doing a simple dialog box that has a status reply and I want to change the colour of the text to yellow for a caution, red for an error and say green if it is okay. I have tried and failed to use Settextcolor() in the dialog box. … |
| | Hi I need to find the mode and I'm just not getting the right output for the mode. The program is supposed to find the mode and display it if it exists and if it doesn't exist it's supposed to display -1. Any help will be very much appreciated. Thanks. … |
| | I have developed a GUI where in I need to update some(4) parameters in a ListBox.I am usind the following code to do this. [code] CString tmp; tmp.Format("%4d %4d %4d",a,b,c); listBx.AddString(tmp); [/code] a,b and c are integers.listBx gets updated every 1 sec. But I am not getting the output in …  |
| | Hey All, I have stumbled upon a small problem while using an fgets function. I need to make a program that reads in lines from a text file (text file is entered via command line) Here is a little snippet of the code (concerning only the fgets function :P) [code=c++] … |
| | How can i use the defined functions into the forms? |
| | Hi, How can I show a long value returned from a function to a textbox on a dialog box. Void CVideoDlg::OnBnClickedFrames() { m_AMC.get_FramesDrawn(); // retunrs long } I want to display the returned value in textbox as well as a messagebox. I tried MessageBox(CString(m_AMC.get_FramesDrawn())); But it didn't work out anyone …  |
| | Could someone give me some function names to google for? Im trying to detect a left mouse click in an area which happens to be inside a game window. Just need something very primitive to get what it to do what I want. I know im going to need the … |
| | This is what I am doing but I am stuck here can you help me?? // Winning Division #include <iostream> #include <iomanip> #include <cstring> using namespace std; // Constant for division name array size const int NAME_SIZE = 26; // Function prototypes double getSales (char []); void findHighest(double, double, double, … |
| | Hi All, A error message is thrown on the compilation of C++ code. The error message is error: expected initializer before '*' token Also i am attaching the C++ file here with. [code=c++] /* $Id: Debug.h,v 1.1 2005/06/23 13:47:50 srinivasar Exp $ */ /* * Copyright 1999-2001 AdventNet, Inc. All … |
| | Hello I am trying to calcuate the square digit length of a number. I have written a code but I am getting an error with the "pow" function & I have no idea what is wrong? Can you help me? [CODE]#include <iostream> #include <cmath> using namespace std; int squared_digit_length(int n1); … |
| | Hi, I am getting the error "Segmentation fault" when i run my program. Then when i debug the code to find the cause of the error i get the following error messages. I do not know what these error messages mean: Error Message: ------------------------------------------------------------------ Program received signal SIGSEGV, Segmentation fault. … |
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