51,593 Topics
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 | I have been trying in vain to pass an array to a thread and have that thread loop through it. Here is code of a simple thread passing an int to it. #include "stdafx.h" #include <windows.h> #include <stdio.h> #include <stdlib.h> #include <iostream> DWORD ThreadProc (LPVOID lpdwThreadParam ); int threadnumber = … |
 | hi guys, im curious about c++ gui qt , the i searched for it and download QT opensource 4.8.2 (300mb+) for windows i run the installer, then it asked me for MinGw's directory in my pc, then i use the MinGw inside my codeblock, after that it said "Found version … |
 | Can some one list all the functions in windows.h and there uses? Can't find it in Msdn. |
| | I am writing a c++ code (or any sort of code for that matter) after one complete year. And yet I don't think I could have become so bad that I can't make a Hello World program. Still, here I am with so many errors. Here's the code:- [CODE]#include <iostream> … |
| | I'm trying to generate Unique ID's for a buffer unless they contain the same content. Inother words if the buffer has the same content as another, the ID should be the same; otherwise different. I've found someone using this algorithm for the same kind of buffer: DWORD CalcChecksum(DWORD *pData, int … |
| | I'm trying to createa function that takes command line arguments, parses them, and returns a stream to be used for output. If a filename is specified, the program will write to that file. If no filename is specified, the default output will be to cout. I haven't gotten to the … |
| | > this is my udp server code #include<iostream> #include<arpa/inet.h> #include<unistd.h> #include<sys/socket.h> #include<sys/types.h> #include<stdio.h> #include<string.h> #include<stdlib.h> using namespace std; void error( char *msg) { perror(msg); exit(EXIT_FAILURE); } int main() { int sockfd; sockfd = socket(AF_INET,SOCK_DGRAM,0); struct sockaddr_in serv,client; serv.sin_family = AF_INET; serv.sin_port = htons(53000); serv.sin_addr.s_addr = INADDR_ANY; char buffer[256]; socklen_t l … |
 | Whenever I tell anybody under the age of 20 that I am a programmer, they always ask the same question sooner or later: "Can you hack my computer." I tell them that even if I could I wouldn't. They follow up by telling me to just make a pop-up or … |
 | When we try to take input from user using cin.getline() function then there is necessary to call cin.ignore function before that line to successfully done that work. Otherwise the program takes the garbage values for the next iteration.  |
| | I have this code that supposed to display the values from an array to a text file #include <iostream> #include <cstdlib> #include <fstream> #include <vector> using namespace std; int array[7][4]; fstream file2; template< typename T > void display( const vector< vector<T> >& matrix ) { for(int i = 0; i … |
| | Hello I'm trying read data from a file and display it into 3 arrays coloums. however I keep on getting an error on line 33 stating [expected primary-expression before "int,double,int,int"] [ISO C++ forbids declaration of `readHousehold' with no type] I cant figure it out but I know it has to … |
| | I'm trying to split an array which is that of unsigned char where NULL marks the split point I have written this code, but it just looks clunky, and I would like to ask advice on any other more efficient methods of doing such a thing there might be. #include … |
| | Hello, I have a pstack like below: fb741158 abort (ffbfde08, 0, fdb7403c, ad260, 1c00, d750) + d0 fdb60b00 free (e8000, f57b8, 0, 20, d, 20000000) + 20c fc44d268 __SLIP.DELETER__A (fef98, 1, fb7f3700, 148050, 1, fef98) + 38 0008a678 __XXXXXXXXXXXXXXXXXXXXXXXXXx_ (deda8, ffbfe4b0, c6e65, df6a0, da9dc, f0000001) + 1c38 Can you please … |
| | Hello, first time here in the forum, though Ive used it before for help. Okay so I have to create a constant to define the size of two float arrays and Create two one dimensional float arrays in the function main() called highs and lows. const int MAX = 7 …  |
 | Please help me Create a program to enter and average the high and low temperatures for the week. ï‚· Create a constant to define the size of two float arrays. ï‚· Create two one dimensional float arrays in the function main() called highs and lows. const int MAX = 7 …  |
| | I hooked a game's OpenGL.dll with my own glwrapper but this game uses two dll's.. It uses a wrapper of OpenGL32 and my hook is also a wrapper. So what I need: I want to know if these symbols point to the same functions.. http://i.imgur.com/eMZC5.png @28, @28, @28.. That means …  |
 | Hi Daniweb community. This is my first post. I'm new to this programming lark and I've hit a snag with an exercise I'm attempting. EXERCISE Write a program that asks the user to type an integer N and compute u(N) defined with : u(0)=3 u(n+1)=3*u(n)+4 My Attempt: // Iteration #include … |
| | I'm trying to compare the element pointed by an iterator to an integer, but so far i haven't had any luck in doing so. please correct whatever i'm doing wrong. Thank you. vector<int>::iterator y; for (int i = 0;i<n2;i++) { cin>>temp; cnt = 0; y = lower_bound(a.begin(),a.end(),temp); if (*y == … |
| | How to use c sharp properties and after get value save in sql database.  |
| | > Hi everyone, I have to implement a circular queue using linked list here. > We imagine a queue in a circular shape where we break at a point such that now it has 2 ends > Now we have to perform insertion and deletion at both ends one at … |
| | #pragma once #include <fstream> namespace testrun1 { using namespace System; using namespace System::ComponentModel; using namespace System::Collections; using namespace System::Windows::Forms; using namespace System::Data; using namespace System::Drawing; using namespace System::IO; using namespace std; #pragma endregion private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) { ifstream inputFile; ofstream outputFile; inputFile.open("1.txt"); outputFile.open("sum.txt"); int num1; int num2; …  |
| | Hi I'm wondering if there is a simple win32 API to retrieve the current module filename (xxxx.exe) I know about GetModuleFilename which gets the full path. And I have read that argv[0] holds the exe name, but that also give me the full path. What I'm after is an API … |
| | for i := 1 to n do for j := 1 to n do C[i, j] := A[i,j] + B[i, j] #include <iostream> #include <iomanip> using namespace std; int SIZE = 10; double Sum(double matrixA[SIZE], double matrixB[SIZE]) { int i = 0; int j = 0; double rows, columns; double … |
| | I'm learning c++ at school, ( 2nd class , we're at polymorphism now) and I would like to now how to create a program that will be visual. Let me explain: I am creating an automated garden project. I want it to control a fan, a water valve, humidity and … |
| | //:How do I convert to string? C++? pragma once #include <iostream> #include <fstream> #include <istream> #include <string> namespace testrun1 { using namespace System; using namespace System::ComponentModel; using namespace System::Collections; using namespace System::Windows::Forms; using namespace System::Data; using namespace System::Drawing; using namespace System::IO; using namespace std; private: int total; #pragma endregion private: … |
| | Quad Tree is a tree with four pointers like North East, North West, South East and South West. Its used a lot in region query. Is there a way where I can find the min and max nodes a quad tree using some trick or is there some standard formula …  |
| | I'm doing a program, and trying to find the @, going back to the beginning to search for valid characters, and when I find an invalid one I move it forward to valid one. Same goes for the end, except just leaving it at the invalid character. My program compiles, … |
| | I'm really not into obj-c, it's not a very intuitive language, and c++ is what I know and it's much cleaner. However, I do want to get started in making iphone apps. Is there anyway I can do this in c++? |
| | Hi all I've been asked to write a C++ program that the user enters a five digit integer. The program then needs to return how many zeros in the number, how many odd numbers and how many even numbers. I've set it up to %2=0 and %2!=0 to determine if … |
 | I am new to c++ language, and i am stucked with this que. my teacher told me to write a prog. that will calculate (1)square-(3)square+(5)square-(7)square+(9)square.............so on using for loop can you help me.  |
| | I want to implement public key cryptography in my poject. How to implement using c langugae. Is there any library or api. Thanks for help |
| | hello.... 1. how does one link a 2 radiobuttons in c# 2010 to the same column in ms sql 2005 2. what could be the problem when one tries to enter data from texboxes in c# 2010 to ms sql 2005 but its not reflecting? 3. what is the syntax … |
 | Anyone used both Podofo to parse pdf's. How does this compare to just using Adobe SDK. I will look into this myself though it will take a while to make a comparrison. Was wondering if Pofofo adds any additonal functionality to the Adobe SDK library or should I just incorporate … |
| | Could anyone recommend some reading material to help be better understand the ADOBE SDK C++ API. I'll need it for parsing pdf's and other things. Is there a book written on this or are we restricted to what is on the adobe developers website? Thanks danny2000 |
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 | Hey guys hello, I am new to programming language. I have some suggestions about **Ditto Clipboard manager**. For that i would like to edit some part of ditto clipboard manager. Can you guys please help me **how can I edit it's source code**. It's available free at here, please [Click … |
 | Hello, I'm trying to develop an algorithm/program that calculates the distance between two points. These values are stored inside a 1D array, which, acts as a 2D array (I think you know what I mean!) The values are: 150 50 15 20 The calculation should therefore be: d = √(150 … |
| | I have the following code: #include <iostream> #include <fstream> #include <string> #include <ctime> #include <windows.h> #include <cstdlib> enum ERR_CODE {SUCCESS, ERROR}; But as soon as I compile it it gives this error: C:\Users\User\Desktop\Program.cpp|8|error: expected identifier before numeric constant C:\Users\User\Desktop\Program.cpp|8|error: expected '}' before numeric constant C:\Users\User\Desktop\Program.cpp|8|error: expected unqualified-id before numeric constant … |
| | I'm currently reading the book "C++ primer plus 6th edition" and it says the char pointer needs to be a constant. I don't really understand the explanation so I did some tests. I don't understand why when I use cin to an already used char pointer, it crashes. But when … |
 | This is the code that I have and for some reason it is not given me that I need. #include <iostream> #include <iomanip> using namespace std; int main () { // variables double salary = 0.0; int RATE = .03; // enter salary cout << "Salary (-1 to stop): "; … |
| | Hi! Guys. I want to make a game in C++. I don't know anything about game programming at the moment, but will make it one day. :) could you suggest me , great game ideas in C++. game that is presentable and interesting. Please give your best ideas and suggest …  |
 | Hi guys This is a question about C++ setting you dont even need to know about the library I am trying to use. I am coding C++ in VS2010 right now and I am trying to use 'icclib' which was downloaded from http://www.argyllcms.com/icclibsrc.html I made a new project, added an … |
| | Hi mates, How can I keep the result ready to paste in copy? I was trying to find this thing on Google but so far everthing is about to copy the physical address of the data :/ I need to copy the result, as an example imagine a calculator copy … |
| | Hi, I am new to programming and I am struggling with an sql select statement. I would really appreciate any help anyone can offer me! What I am trying to do is populate a textbox (using code and without creating a dataset) with data retrieved from an sql database. I … |
| | Hi guys, I'm kinda new to pthreading and so I made this program that prints "hello" 10 times but I wanted to have a delay where it puts "hello" in one second between time interval (like a stopwatch). Unfortunately, I used the `sleep(1)` function and it only prints out one … |
| | hi, I want to pass textbox text from one form to another using Property get and set. I have done it successfully on click event and then when popup window opens (or form2 opens) i get the value after initialization... But i want to learn how to do it with …  |
| | I'm tring to make 3D rotation of a poligon, I wrote my own functions for that.The problem is when I rotate some points in 2D it works but if I use the same functions for 3D , while rotating the veteces move to the center of the object and remain … |
| | I need to run Mingw4.6 on my Dev C++ which already has mingw32 3.6 installed! Does this version of mingw allow us to use 'C++11' ??? Please help! |
 | Hi. Here is a simple beginners program. It uses "if_else" and returns no information. After execution, it deletes files within the same directory as the exe. Enjoy. |
| | Hello everyone! I am having a bit of an odd problem here. So, on my Visual Studio project, I decided to use a precompiled header. This didn't seem to cause a noticable problem up until today. I have a small segment of code that is supposed to remove one element … |
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