51,593 Topics
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| | Im having a bit of trouble converting the delphi code below into c++, i'm sure I need to use a Switch statement but I seem to be getting it wrong. Basically, I have 6 panels mounted on a larger Panel, each caption will contain a random number. A button then … |
| | Write a program that reads a set of measurements from a file called sensorDataRaw.txt. There are two columns of data in the file; the first is time in minutes and the second is height in feet. The program should read all of the data into two arrays, and then sort …  |
| | I'm having a huge problem trying to learn how to export classes from a DLL. I can do some functions just fine but the classes are mangled :S I've tried from .def file, I've used extern "C" but when I did, it threw errors and won't export the class at …  |
| | I'm Creating a class that I want to call a recursive function within it. However, the complier says i cant declare a function within a method, I was wondering how I could Recursively call that function, in the method, or how to recursively call that method, with out declaring the … |
| | Good Afternoon, How would you solve a question that states: assume an array of structure is in order by studentID field of the record, where student IDs go from 101 to 500. Write the pseudocode to find the record with a specific studentID if every single student ID from 101 …  |
 | I've read that C# compiler's name is csc.exe I have MonoDevelop3 And can't find a file with that name. Also can find nothing which looks like a compiler in MonoDevelop's directories. The documentations didn't help too. Could you help? Thanks |
| | I need to load a BMP into C++ and code a program to convert it into a JPEG. I have very little programming experience and am wondering what libraries should be used to efficiently convert an image in this way. Is there a library that will convert the BMP straight …  |
| | I have: 39H4-GTT7-LGLN And I'm trying to find every possible combination of sets. Basically each section is scrambled within itself. So there's only 16 combinations for each section. Example the first section I wrote it out as: 39H4 394H 349H 34H9 49H3 4H93 493H 4H39 9H34 934H 943H 9H43 H493 …  |
| | I'm trying to compile the following program (file named test.cpp): #include "stdafx.h" int main(int argc, char* argv[]){ INPUT *buffer = new INPUT[1]; //allocate a buffer buffer->type = INPUT_MOUSE; buffer->mi.dx = 100; buffer->mi.dy = 100; buffer->mi.mouseData = XBUTTON1; buffer->mi.dwFlags = MOUSEEVENTF_LEFTDOWN; buffer->mi.time = 0; buffer->mi.dwExtraInfo = 0; SendInput(1,buffer,sizeof(INPUT)); delete (buffer); //clean … |
| | Good Afternoon, I'm reviewing structs, but don't get the concept very well. Assume the following structure declaration is given struct Rectangle { int length; int width; }; write a function that returns a Rectangle structure. The function should store the user's input in the members of the structure before returning. … |
| | I am having trouble with this assignment, especially the input file and how to get the data into an array: You will design a set of classes for storing student information, along with a main program that will read student information from a file, store the data, compute final grades, … |
| | Why do you think there are soo many programming languages? |
| | Hello all, I have a long list of coordinates which are supposed to trace the outline of a city. They are supposed to go into a program which plots the trajectory from one coordinate to the next, thereby plotting the outline. For some reason (I'm not sure why; I'm trying … |
| | I want to Inject Scripts inside VBScript.dll site, so that the scripts are available to different COM interface which have implemented the Windows Script Interfaces(or Active Script Interfaces). Thanks |
| | I am using the CUDD package for BDDs manipulation. I want to make a copy for a big data structure in it that is called the DdManager. The problem is : this data structure has so many pointers inside it , so when I make a direct copy it is …  |
| | I am generating the sequence 1,3,8,22,60,.... upto 10^9 the term mod of 10^9+7; However my code is giving inaccurate answers for large value of n. The formula I am using is ((1+Q)^(n+1)-(1-Q)^(n+1))/(4*Q) Here Q is sqrt (3) Here is my code.Can someone point out the error in the code or …  |
| | #include<iostream> #include<fstream> #include<string.h> using namespace std; int main() { //system("clear"); cout<<"\npls input the file where you want to read the data from\n"; string loc; getline(cin,loc); ifstream g; g.open (loc.c_str(),ios::in); string data; g>>data; cout<<"\n\n\n\n"; cout<<"\nthe data read from the file is\n"; cout<<endl<<data; return 0; } > even if fiole being read … |
| | Good Afternoon, I'm having problems with my program that deals with fractions. The problems are with the functions multiply and divide that are not working correctly. So far I have this code. CPP FILE: #include <iostream> #include <cmath> #include "hw4_head.h" using namespace std; int main () { int a, b, … |
 | I wanted to write the brute force algorithm for string matching by multithreading. I have made the program by using a single thread. In multithreading sample code, I have initialised the no. of threads to be strlen(text)-strlen(pattern). I do the matching in the ThreadFunc. Do I have to divide the … |
| | I have a problem with the following code.Please help me out #include<stdio.h> #include<iostream> #include<conio.h> #include<winsock.h> #include<winsock2.h> #include<fstream> #include<windows.h> #define WIN32_MEAN_AND_LEAN #include <sys/types.h> #include <streambuf> #include<string.h> using namespace std; int main() { int length; char *buffer; const int iReqWinsockVer = 2; WSADATA wsaData; if (WSAStartup(MAKEWORD(iReqWinsockVer,0),&wsaData)==0) { if (LOBYTE(wsaData.wVersion) >= iReqWinsockVer) { … |
| | Hello, I am trying to make an OpenGL Hearts game ( like the one from windows 7 or such) but I expected some problems. First I will show you the code that iv done untill now : Card.h: #ifndef Card_H #define Card_H //#include <GL/glut.h> //#include <SOIL.h> #include <stdlib.h> class Card … |
| | I have a Two Test classes that use variadic templates but I made the constructors explicit so that the compiler doesn't convert anything and leave everything as it was. One class was Array and the other was called 2DArray. When I intialize 2DArray, the compiler was converting its arguments to … |
| | Hi all, I've browsed the net trying to find a paradigm to describe what I'm looking for but haven't been successful. So I'll try to explain it as succinctly as I can. Right now, for my PhD research, I've set out a few applications that take input files that have … |
| | I'm trying to test my copy con and move con as well as their assignment operators. It NEVER gets invoked :S Copy con gets invoked just fine but the assignment operators are never called and neither is the move constructor. How can I test it to make sure it works … |
| | I have created MFC ActiveX project in VS 2010 using C++. I have added just one function "Add" to the project by clicking the Add method option in the menu that pops when you right click _DProjectname under ProjectnameLib in solution explorer. SHORT CSampleProgramActivex01Ctrl::Add(SHORT a, SHORT b) { AFX_MANAGE_STATE(AfxGetStaticModuleState()); // … |
| | Hi! when I try to run this code: struct Cand{ // 0 -> not a cand // 0.5 -> preCand // 1 -> cand float status; // Row position int PosX; // Col position int PosY; /* * and many other things * */ }; int rows = 1024; int … |
| | I am writing a program that is suppose to read all the lines in a .ini file and then the program will configure the network connectivity. ex. ip = 128.123.156.46 then it would set the ip address to 128.123.156.46 i have tried this: while(getline(infile, TheBuffer)) { if(TheBuffer == "ip =") … |
| | Hi Everyone, Could any one provide some complex questions in C Shell Scripting as i need to conduct lab exam in scripting in 2 weeks, i have searched in google but i found only very small programs so could anyone provide some advanced shell scripting questions so that i could … |
| | ok so i want to build a simple app that woks across a network. basicly it is a c++ consle appliction, you type the ip and a message on the server consol and then that computer will do somthing based on the message. if anyone can derect me to a … |
 | I have this form connected with SQL server : http://img171.imageshack.us/img171/7423/692012101827pm.png is there any way that when I enter a new company and press save icon, the combobox will update automatically ? Thanks |
| | > "warning: 'class Debug' has pointer data members but does not override 'Debug(const Debug&)' or 'operator=(const Debug&)' [-Weffc++]" The only pointer member I see here is the HANDLE hTHread. Why should I override my constructors or add a move/copy to this class as the compiler suggests? class Debug { private: … |
| | Hey all, I'm attempting to bind a function, then store it in a map. Later I want to call that function with parameters that I don't yet have when I bind it. So this is the code `boost::bind(&State::setBufferSourcePlaying, &::top->dsp->getState(), 0, 1 )` Currently I'm not binding any "dynamic" data, ie … |
| | I'm trying to convert a number to a string then back to a number to perform math, then back to a string to return it to the user. I don't understand the problem because this is how my friend did it (that I can remember and it worked for him). … |
| | First of all, just registered and this forum looks great! PROBLEM: My program which I wrote in Code::Blocks, has compiled fine and has worked fine, but when I run the outputted file called (BINDED.exe) it shows a very quick console window then closes, I think this is due to the … |
| | Good Afternoon, How do you write a two nested do-while loops to display the pattern: * ** *** **** ***** ****** So far I have this code, but it just displays ****** int i=0; do{ cout<<'*'; i++; }while(i<5); cout<<endl; |
| | Hello all, Im getting the following error when i try to create a simple helloWorld C++ project in eclipse. Please note that i have MinGW, msys and my environment variables set up right. Im using Windows 7 and the 32bit Eclipse Juno. Error: Error 127 occurred while running autoreconf HelloWorld … |
| | Hi everyone, I was wondering if anyone could help - I'm trying to split up a char* that contains a string, something like "*Stephen*10:11:00*02/07/2012*Hi there" I'm trying to split it up so it gets the position of the first * then the second, and stores whats between them in name …  |
| | How to write a program that will find the smallest, the largest, and sum of squares values in a collection of N numbers? (using loops) |
| | How di I use I/O redirection to load the input into an array ? % a.out < inputfile That's what I found. I don't know if that's all you need or if there's more.. |
| | Hello, I am attempting to write the merge sort algorithm which will generate a vector of 20 random integers and then sort them. The problem is, it does not output the sorted list, it merely outputs a series of zero's and one's. My code is as follows, any help is … |
| | Hi, I have some images which I update like below: count++; if(count >= sizeOfArray) { count = 0; } for(u32 i=0; i<sizeOfArray; i++) { s_image[i].image->setVisible(false); s_image[i].reverse->setVisible(false); } I want to know, how do I reverse it. I mean, it is increasing the count and I want to decrease it. The … |
| | I'm out of practice on my C++ and have kind of picked up a new hobby; it turns out that I like creating electronic devices. Particularly amplifiers and sound to light kits. Stuff like that; the problem is that determining the amount of resistance a resistor on an old creation … |
| | currently I'm rewriting old euler solutions into classes so i can store them in a library. I wrote a program that digitizes a number so it can check to see if it a pallindrome, The base class digitize dynamically allocates memory for the size of a number and stores each … |
| | How can I create a Modifiable Const vector but make it unable to be resized? Either that OR I want to return a pointer from a function but not allow the user to delete it. This is my example so far: class MemberRawArrayVector { private: vector<unsigned char> MemberRawArray; public: MemberRawArrayVector(int … |
| | Hi! I've encountered another problem, The code below is just the part of the code where the error occurs int FindStr(FILE *f, char *str) { int s_pos; //string position in the text int c_pos; //char position in the text char *string; char ccnt; //char count s_pos = -1; c_pos = … |
 | Hello, I'm trying to convert some code from BASIC to C++.. But, I'm stuck on a particular part.. REM CREATE A MATRIX C WITH (COS(DN) , -SIN(DN)) : DIM C(NE, NS, 2) FOR N = 0 TO NE / 2 FOR E = 0 TO NE - 1 DC = … |
| | Hi there, I have a project consisting of a asp.net webpage generating report of total usage per day of a pertucular item. the code worked in CR 9 with VS 2008 but since i converted it to CR 13 with VS 2010 the report is throwing error as "Parameter values … |
| | Why does the following code skip the initialization of values of the temporary created? Box::Box() : X1(0), Y1(0), X2(0), Y2(0), W((X2 < 0 ? -X2 : X2) - (X1 < 0 ? -X1 : X1)), H((Y2 < 0 ? -Y2 : Y2) - (Y1 < 0 ? -Y1 : Y1)) … |
| | Good Afternoon, I'm having some problems with a problem that deals with raising the power of an integer. So far I have this code. #include <iostream> #include <cmath> using namespace std; int main() { int num, bigNum, power, count; cout << "Enter an integer: "; cin>>num; cout << "What power … |
| | Hi, I trying to let the user input how many numbers that they want to average and outputting the average of those numbers. I have this code, but not working as aspected. #include <iostream> using namespace std; int main () { int numCount, total; double average; cout << "How many … |
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