51,593 Topics
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| | Hello I was wandering if anyone knows any good hardware programming tutorials, or books in c++ I'm not a c++ expert, but i feel very comfortable with the language, and read Sam's teach yourself c++ in 24 hours. What i basically want to do, is interresting stuff like, controlling an … |
| | Hii, C++ is new for me. I have two problem A and B , I need solution of A in B and B in A . I made a pointer in A to copy solution of B but when I am doing same for B to A , it is … |
| | Hi fellows, How can I set a value of any type in VARIANT const pointer? I am tried my best but vain. I am facing compile time error. Here is sample code [CODE]VARIANT *v=NULL; v->bstrVal = "Video.Bin"; another try VARIANT *pValue; //BSTR *fileName; const char* pName; pName = "Video.bin"; pValue … |
| | Hi, all Anyone, please teach me how to create an object of managed class in unmanaged class within the same application (under MFC c++ vs2008) ? (I can turn "/clr" option on only for the managed c++ class, for the whole application it's off due to the compatibility issue.) |
| | I have to write a program that will read a file that lists the scores for two teams. 1st 2nd 3rd 4th Visitors 17 18 21 20 Final Score: 76 Home 21 22 24 16 Final Score: 83 Input file will look like: 17 18 21 20 21 22 24 …  |
| | I've got 5 arrays each with one number in them, but in order to sort them using the insertion method, I need to combine them into a single array. How do I do this? This is the last part of my program and can't figure it out! |
| | This is the header file provided by my instructor. [code] // // unsortedlist.h // #ifndef UNSORTED_LIST_H #define UNSORTED_LIST_H struct UnsortedListNode // Description of list node { char ch; // Stores one character input from file UnsortedListNode* nextPtr; // Stores address of next node }; class UnsortedList // Linked list implementation …  |
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 | hello!! i am a new programmer!! i started with turbo c 4.5. just installed borland Turbo c++. the used same codes as 4.5 but got problem with output screen. i cant see the programs output screen after the program ends!! can anybody tell me how to active it? |
| | Hello i am a bit new in C++. i started to take C++ 4 days ago hehe and honestly i love it. now im trying to do is a 3x3 determinant and it is giving me a small problem i tried to find this. 1 2 3 4 5 6 … |
| | I'm trying to write a program that will simply move a file from "FILENAME.TXT" to "CURRENTDATE-CURRENTTIME-FILENAME.txt" and am having problems. The error I'm getting is cannot convert from char to char[] Here is my simple code: [code] private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) { time_t now; char the_date[12]; the_date[0] = … |
| | Hi I'm doing a templated matrix class, and I'd like to be able to pass a function pointer to a function that uses the rows. [CODE=c++] template<typename T> T sum(Array<T> &a){ // a simple function that return the sum of an Array T res=0; for(int i=0;i<a.length();i++) res+=a(i); return res; } … |
| | Hi all, I have a class which contains a struct that holds some variables, string, int's. Now, one of the variables (string) in the struct is used to compare it with a name, if the name is in the struct, it has to be [COLOR="Red"]returned from my function [/COLOR]with it's … |
| | Write, compile and run a C++ program named that reads in one integer that represents a total number of hours and then displays the equivalent number of weeks, days and hours, all properly labeled. Have your program only do the calculation if the user enters a number less than 30,000 …  |
| | I have recently begun working on 3d mathematics and I am pretty decent with matrices but I still dont see how having a 4x4 matrix can represent something for 3d graphics programming for a C++ program, could anyone explain this or give an example please. Thanks in advance |
 | We're trying to get our C# program to work on linux. We just loaded into Mono, and it compiles fine but the form doesn't appear. Anyone know what? Does it have something to do with it being a "windows form"? |
| | sorry about my english i make a game and i need to use on interrupt i/o(input), someone can to help me?? the code is : [ICODE] cout<<"Enter num : "; for(i=1; i<=100000000; i++){//its loop time // here the interrupt // when the user click some key its //stop the loop …  |
| | For the code below I Select an area in a textBox that I will Mark Red. I will also change the Fontsize to [B]16 [/B]and make the selected text [B]Bold[/B] but are not sure what calls that is used for this. [code] this->richTextBox1->Select( 0, 10 ); this->richTextBox1->SelectionColor = Color::Red; [/code] |
| | Hi, I am developing a GUI using visual C++ 2005 express edition. I created a window forms (form1.h) with some buttons and codes. Next I added another new window forms (form2.h)with a single button. I wish to link the form2.h to form1.h with a single button click. I searched and … |
| | How do you draw on an image in visual studio 2005 and get it to stay? Ive can get it to draw, but it flickers on resize and disappears when the resize is done. Any ideas? |
| | I am loading a txt File into a textBox with the code below. For each Line I am checking : if( LoadTopic2.substr(0, 2) == "Ex" ) If that is True I want to select that Row and mark that Line Blue. I have started some code out below but dont … |
| | i am required to write a C++ program code that generates random numbers for a dice and it should have 1000 observations please assist a fellow geek |
| | HElp.. Friday 09.19 I must present a little program for my C++ university test. I remain just a little bug. I use this code to write my file .DAT [code=C++] ofstream fileScritturaPartita(nomeFile,ios::binary | ios::out | ios::app); fileScritturaPartita.write(reinterpret_cast < const char * >(&sfidaDaSalvare),sizeof(Partita)); [/code] It works very well but in the … |
![Member Avatar for Run.[it]](https://static.daniweb.com/avatars/orig-avatars/avatar168980.gif){kind=avatar} | Hi, just a query about versions of Microsoft Visual Studio. I last year created my C++ programs using Visual Studio .Net 2003 and have noticed that my new uni course uses 2005. Will I be unable to run my old programs in the 2005 version? Ive had compatibility issues before … |
| | Hi!! We are planning to do r project in c++. Is there any good library available for creating GUI in c++?  |
| | Hello, dear all! Below is heap algorithm. the problem is the output is not appear. How to fix it? [code=cplusplus] #include <stdio.h> #include <iostream> using namespace std; int *Value; int N; void read (int N) { int i; for (i = 0; i< N; i++) { cout << Value[i] << … |
| | i require a program that generates random numbers for a dice and should have 1000 observations |
| | I followed Ancient Dragon's advice and used vectors to store roughly 1000 objects in a program I have written. Unfortunately, the vector library is not one I am familiar with. I read through the information at [URL="http://www.cppreference.com/cppvector/index.html"]http://www.cppreference.com/cppvector/index.html[/URL]. It seems getting a reference to each element of the vector is the … |
| | I'm doing a lab where I must use three sorting methods, then merge sort the three arrays. While separating the larger array, I'm getting a "run time check error #2 stack around the variable x was corrupted: It does this for y and z as well. I think it is … |
| | I am studing SE computer engg,i have a problem in above code execution plz some help me |
| | hello, dear all, i have a slightly problem with my assigment algorithm as follows: [code=cplusplus] void write( int *x, int n) { if (x != 0) { for (int i = 0; i < n; i++) { printf("%4d", x[i] ); } printf("\n"); } } // print void swap(int *x, int … |
| | Can anyone spot the error in my code? The program will enter the last while loop but continue in an infinite loop... I figured fresh eyes may help spot the flaw! [CODE] int xlist[1500], ylist[1500], counter = 0, tempx, tempy, tempcounter; bool assign = false; while(counter < 1500) { xlist[counter] … |
| | Hi I wrote that peace of code but it is not doing what is suppose to do. It should saved my numbers into linked lists in incresing order. It doesn't. What am I missing. Thanks [CODE]#include<stdio.h> #include<conio.h> struct Node { int number; struct Node *link; }; typedef struct Node* NodePtr; … |
| | I have a program that has a custom class that I would like to create many of and access them like an array. Example: [CODE]#include <iostream> using namespace std; class Thing { public: Thing(int value) { a = value; } int doStuff(int diffValue) { a = diffValue + a; } …  |
| | I'm doing my own array template version of an array. I'm having some problems overloading a method. I'm doing a specifik version of a "print()" if the type of array is <char>,(i'm saving bools as char). this works without problems. I just needed to add a templete<> infront of my … |
| | Hi, Anybody knows how to expose an interface from unmanaged MFC C++ to managed c++ within the same application ? I have a managed c++ class and an unmanaged MFC c++ class, and am trying to create an object of managed class with keeping the application's compile option as unmanaged. |
| | do you know whats a cout? what are its function and in what library can it be found?  |
| | Hello, dear all. My algorithm as follows. my input is in Code2D.h file. actually i have to put in file 'Code2D.in'. but i dont know have to create it. By the way, my algorithm have no problem with N <= 4. but when i change N = 5, 6 , … |
| | I want to create a "Help" in an application that I do. I have attached a file for what kind of solution I am after. The solution is the same type as in VC++ 2008 under "Help" /Index? How it is constructed is with a listBox on the left side … |
| | I'm writing a program that opens a file then sorts it a couple different ways then closes it. Someone in my class said something about using a getline function but I can't figure out how that works. I can't find a way to take a specific line in a text … |
| | given two arrays of n numbers, a[] and b[], and a number c, find the largest sum of elements from a[] so the sum of same-indexed elements from b[] don't go over c... i really have no idea... only recursion works but too slow :( heeeeelp! |
| | I've been banging my head on this errors and can't seem to find where I went wrong. For any of the "set_" errors, set_ (as well as print) refers to a member function of another class . Please, any help would be great. [CODE] test.cpp: In member function `void CDCollection::get(int, … |
| | Hi Does anybody knows what is wrong with taht code? Why it says it is empty link list? It should fill with the numbers I enter. Could anybody help to answer the question? Thanks [CODE]#include<stdio.h> #include<conio.h> struct Node { int number; struct Node *link; }; typedef struct Node* NodePtr; void … |
 | With much pleasure I've started using a TR1 imlpementation. I'm a bit wobbly with it, but I'd dearly like to replace some code involving old-school pointers with some shared_ptr The original code is as follows below. It creates an array int* of size rows, each of which points to an … |
| | hi what is the purpose of virtual function, please give me idea thanks bala |
| | hello, dear all i'm try to find determinant . there is error with ' pow': [code=cplusplus] sum = sum + b[0][p]*pow(-1,p)*determinant(c,m-1); return sum; [/code] after run, the argument was appear as follows: 1>c:\documents and settings\user\my documents\visual studio 2008\projects\deter4\deter4\deter4.cpp(78) : error C2668: 'pow' : ambiguous call to overloaded function 1> c:\program …  |
| | hello there! im creating a program with both stdio.h and iostream.h in the include header. Can the program run with them both? or others? |
 | [font=VERDANA, ARIAL, HELVETICA, SANS-SERIF][size=1]How do you make a class accessible from a dynamic link library? It is a commonly asked question with a solution that is surprisingly simple. In this article I will show you how to do it in Visual C++. [/size][/font] [font=VERDANA, ARIAL, HELVETICA, SANS-SERIF][size=1]First, you need to …  |
| | Hi I want to read a two huge integer input from user & wanted to display output on the screen can any one help me ? eg : int a=8132123781237; int b=1237829789; result = a *b ; print(result); ???? |
| | Hi all, whaz up poeple i have a little problem! if anybody could help me, i would be grateful i have made an application in borland c++ about credit cards there are 2 fields, and between them are 2 buttons (import and status) when i press the import button, i … |
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