49,765 Topics
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| | Is there any recommended books, websites or practices that i can do to improve my c++? I decide to become a great programmer in the future!  |
| | I want new a array,such as double *dou=new double[600*600*900] but in the case of "WIN32",vs compliler likely could't support new a array exceed 2G if I want to new the array above, how to do? |
| | I 'm not quite sure if i did the right way but i just couldn't get the right value for my codes....can anyone figure out the problem? [CODE]for(int x = 0; x<myvector.size();x++) { if(number.compare(0,2,myvector[x],0,2)==0) //compare number(user's input) to the line read from getline { checknumber = true; cout<<"passing compare++"<<endl;//if same … |
| | Hi everyone, I'm new here but have found it super useful to search the forums when encountering problems so I have been in the background. I am however really stuck with bitsets and have not been able to find a relevant post here or on the internet. My issues is … |
| | i want to make a program that used to enter 7-digit number and determine the largest , smallest and the median and average of the seven number and as for know i tink i got it but there something wrong again in my program can you chek it out and … |
| | Hi everybody, In standard C++, two pair objects (pair <int, int>) are equal when the first and the second member of the pair are equal. Would it be possible to redifine the pair so that to pairs would be equal when only the second terms are equal? Thanks a lot … |
| | HI every one, I need to do a course project for software architecture which should be implementable and is compulsoraily an ieee or acm paper. The areas given for us are: agile s/w developement,extreme programming,cloud computing,web services,generic programming,testing... can u guys suggest any thing in it |
| | how can I input a console-entered string into multiple structure variables? I have the following structure: [code=c]struct MyTime {int hours, minutes, seconds;};[/code] and need to prompt a user to enter a time in format hours:minutes:seconds and then store that time into the structure directly i.e. I can't input a string … |
| | [CODE]// pointers to base class #include <iostream> using namespace std; class CPolygon { protected: int width, height; public: void set_values (int a, int b) { width=a; height=b; } }; class CRectangle: public CPolygon { public: int area () { return (width * height); } }; class CTriangle: public CPolygon { …  |
| | Hello, I am new to this site and to C++. I have been following a tutorial on how to make a Tetris clone in SDL and C++ from the following site : [URL="http://www.aaroncox.net/tutorials/arcade/FallingBlocks.html"]http://www.aaroncox.net/tutorials/arcade/FallingBlocks.html[/URL] When i was finished going through it all and sorting through all the petty errors I had … |
| | An exercise is to write a program that generates random numbers within user specified limits. The program I wrote is as follows and it runs correctly. [code] #include "../../std_lib_facilities.h" void randnum(double lower, double upper, int n) // Generate 'n' random numbers uniformly distributed { // between lower and upper limits. … |
| | My assignment is to use pointers to point at the highest and lowest temperatures in the array. I need to have 3 pointer variables and start them at the beginning of the array. Step the pCur through the array using a for loop and pCur++. Loop through the array looking … |
| | Hello I am in a question of assigning local scope pointers to global scope pinters. I have a code like this. [CODE]public : char* myValue; void process(TiXmlElement *element) { myValue= element->getText(); }[/CODE] But once the process function is returned value is garbage. So I did this. [CODE]public : char* myValue; …  |
| | I am practicing Win32 API again, and for some reason, I am getting an error. [code] #include <windows.h> #include <windowsx.h> #define WSIZE = 400 #define HSIZE = 400 LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam); int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { WNDCLASSEX … |
 | [CODE]HMODULE g_hModule = GetModuleHandle( 0 ); HRSRC hRes = FindResource( g_hModule, MAKEINTRESOURCE( ID_DLL_MYDLL ), "ID_DLL" ); HGLOBAL hResource = LoadResource( g_hModule, hRes ); DWORD iResSize = SizeofResource( g_hModule, hRes ); BYTE* pData = ( BYTE* )LockResource( hResource );[/CODE] When I included a dll file into my project, I used: [CODE]fstream … |
| | Hello, I am trying to read the raw interrupts from a USB mouse (Installed and functional) in a C++ application. I have read over LibUSB and WinUSB but WinUSB does not seem to play nice in Qt and LibUSB seems overcomplicated for what should be a simple task. I do … |
 | hello I need help with loading pages that have flash applications in them, my program works for just html pages, would anyone with qt knowledge plz help. TIA. here is my code: [code=c]#include <QApplication> #include <QWebView> #include <QUrl> #include <QWebSettings> int main(int argc, char *argv[]) { QApplication a(argc, argv); //QWebSettings::globalSettings()->setAttribute(QWebSettings::PluginsEnabled, … |
| | Hi [code] #include "cv.h" #include "cxcore.h" #include "cxtypes.h" #include "highgui.h" int main() { CvCapture* capture = cvCreateFileCapture("RosewellBst.mp4"); cvNamedWindow( "Example2", 1 ); cvMoveWindow( "Example2", 100, 100); IplImage* frame; while(1) { frame = cvQueryFrame( capture ); if( !frame ) break; [COLOR="Red"]cvShowImage( “Example2”, frame );[/COLOR] char c = cvWaitKey(33); if( c == 27 … |
| | Helllo, I am supposed to do the following: [quote] Mathematically, a set is said to be consists of well-defined elements. For instance, the following are well-defined sets. A = {1, 2, 3, 4, 5, 6, 7} B = {2, 3, 4, 8, 9} A set may be described using other …  |
| | hi there! im trying to do a xor beetwin two cha but i coudl no there is my code: [code=c] String^ val2; String^ val3; String^ val1; String^ val; char *chval1; char *chval2; char *chval3; char *chval; char *chv; val1=GZMK1->Text;//GZMK1 is textbox val2=GZMK2->Text;//GZMK2 is textbox val3=GZMK3->Text;//GZMK3 is textbox chval1 = static_cast<char …  |
| | Hi! I'm new to C++ and am having a problem with saving a text file into a string. I'm using getchar() but only the last line of the rather long text file is saved into the string when used in different functions. In other words, if I include a "cout" … |
| | [B]Can anybody tell me whats d problem..????[/B] [CODE] #include<iostream.h> #include<conio.h> void main() { clrscr(); int l,b,r,a; char ch,t,x; cout<<"******************----MAIN MENU----****************** \n"; cout<<"\n 1.Area of rectangle"; cout<<"\n 2.Area of square"; cout<<"\n 3.Area of circle"; { cout<<"\n Enter your choice"; cin>>ch; } rec:cout<<"\n Enter the Length and breadth"; cin>>l>>b; a=l*b; cout<<"\n Area … |
| | programe to randomly generate store and display the age of N studnets (e.g ,18,24,38 etc).the minimum age is 18 and maximum age is 75.N should be equal to 9. 1.How we can intialise all the elements of the array to -1. 2.Randomly generate and store the age of N studnets … |
| | Hi.. Can somebody help me with my project in c++? My project proposal that I had submitted is about Question and answer program. It is just like a game. I formulated many questions and their desired answer. The problem is, I want to randomize the question so that it will … |
| | Hi all, I can't seem to make the system() syntax work in my program.. I need to run a command from the command line using C++.. I tried a basic example and used this command [CODE]system("cls");[/CODE] instead of clrscr() and executed using my old c++ compiler. It doesn't work. Even … |
| | // program implement the working of files simple stock // management #include <iostream.h> #include <fstream.h> #include <iomanip.h> #include <stdlib.h> #include <stdio.h> class stock{ int code; char name[30]; float cost; char flag; public: void getStock(); void putStock(); char getFlag(); void putFlag(char); int getCode(); }; int stock :: getCode(){ return code; } … |
| | could u please show me the codes too? (example may be) |
| | Hi there. I am getting the errors below when I am trying to compile this code using DEV C++. [Linker error] undefined reference to 'CheckLeapYear'(int) [Linker error] undefined reference to 'CalcDayNumOfYear'(int) [Linker error] undefined reference to 'CheckLeapYear'(int) Id returned 1 exit status Please help. Below I have included my coding …  |
| | Hi I need to write data which I have successfully read in from a text file, to a new file. The original text file contains data for many objects. The read in data is stored using stl vectors in 3 nested objects: Structure, Polygon and Point i.e. a Structure contains … |
| | // Edit window property case WM_CREATE: hwndEdit = CreateWindow (TEXT ("edit"), NULL, WS_CHILD | WS_VISIBLE | WS_VSCROLL | ES_LEFT | ES_MULTILINE | ES_AUTOVSCROLL, 0, 0, 0, 0, hwnd, (HMENU) EDITID,(HINSTANCE) GetWindowLong(hwnd, GWL_HINSTANCE), NULL); **word wrap calling** case ID_FORMAT_WORDWRAP: bFlag = !GetCheckedState(GetMenu(hwnd), ID_FORMAT_WORDWRAP, TRUE); if (bFlag) { SendMessage(hwndEdit, EM_SETWORDBREAKPROC, (WPARAM) 0, … |
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