51,593 Topics
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| | OK. So, [URL="http://www.difranco.net/cop2220/op-prec.htm"]here[/URL] is a link to a table of operator precedence. At the bottom, it talks about the increment and decrement operators, saying that they have a high (the highest) precedence, but the actual action doesn't take place until later... so what good does the higher precedence do? Also, …  |
| | Hi all I am trying to add GNU adns to my project, But ands thew an error "Assertion `ads->udpsocket >= 0' failed" after running for 10 minuntes. Anybody here met this before? I use ands as follow: [ICODE] bool DnsResolver::resolve(const char* domain, char ip[]) { bool result = false; adns_state … |
| | heey guys.. i'm trying to run this pro but i have one error.. can someone check it please. [CODE=language]#include <iostream> #include<cstdlib> void JOTAKU_LOGO (); //This function calls the flight agency's Logo. void ABOUT_JOTAKUAIR (); //This function displays a briefe history and information about J-Otaku Air. double DOLLAR_TO_YEN (double dollar_Z); //This … |
| | dear all, I have made a project in visual c++ and now i want to give a graphics user interface to my code. what is the easiest and effecient way to do so. Is there any software which can convert my code? reply.. regards  |
| | hello, first of all welcome, secondly someone please help me? this wont compile :( [code] #include <iostream> int main() { float pi; float radius; float area; pi = 3.1415926535; radius = 2; area = radius * pi; std::cout << "The area of a circle with a radius of 2 is … |
| | Hi i would like to know, how can i get the color of a certain pixel on screen? Like when i am in a game and i press a button on the keyboard it will get what color it is in one specified pixel say... (100, 50) Thank you so … |
| | I have a little problem that my Form gets stuck when I run this first code. I have a lot of code in the event. The code runs fine but if I now will deactivate the form by clicking with the mouse on the desktop and again click somewhere on … |
| | Does anyone know how to give a GUI look to your C++ "Console Application". I cannot use Win32 API or any other template except the console application because I use Turbo C++ 3.0 IDE for development and I want my Application to be platform independent while using WIN32 API will …  |
| | I'm wondering if this is even possible in C++. Here's what I did in java a while back: [code=java] class Suit { public static Suit Hearts = new Suit("Hearts"); public static Suit Clubs = new Suit("Clubs"); public static Suit Diamonds = new Suit("Diamonds"); public static Suit Spades = new Suit("Spades"); …  |
| | Hi im working with linked list and i have to implement a function that deletes the duplicates of a number. for example if given 2 7 1 7 12 7 then the result should be 2 7 1 12 here is what I have: [code] #include <iostream> using namespace std; … |
| | I'm using Borland's TurboC++ 2006 Explorer. I'm working on a class project, and have a program consisting of 3 files: [COLOR="Red"]Header (.h) Definitions (.cpp) Driver (.cpp)[/COLOR] [COLOR="Red"]Definitions.cpp[/COLOR] contains the typical [COLOR="Red"]#include Header.h[/COLOR] The program compiles and links correctly if [COLOR="Red"]Driver.cpp[/COLOR] contains the statement [COLOR="Red"]#include Definitions.cpp[/COLOR] The instructor doesn't like using … |
| | how would i remove all the white space from an istream and replace them with "-" before producing an ostream? |
| | I've read that the bits in a byte (in c++) are implementation or system dependent. What does that mean? Does it mean implementation of c++ or the processor architecture or some other thing? And I've read that you should use sizeof to determine the size of a byte? Could you … |
| | Hey what would be the correct syntax for a vector of char* with a size of [2]? ive got it written like this.. vector< char* > myVector(); vector< char* > ::iterator myIterator; // reads in something myVector.push_back(temp); myIterator = myVector.begin(); cout << myIterator << endl; why does it cout nothing? |
| | I want to read and write string from file, - Dont want to overwrite on the existing file - Where to put the read file code as in Constructor if file is not created then it will generate error. help me to solve this issue. [code=cplusplus] class Security{ private: Map<string>password; … |
| | I'm writing code to control a camera and I'm using boost threads to repeatly get the camera image and write it to a gui among a few other things while everything else runs. It's written with wxWidgets and it has a menu with an option to open/close the link to … |
| | Suppose i have a class called [B]Vector3[/B] methods and attributes are defined in [B]Vce.h[/B] file, methods of this class are implemeted in [B]Vec.cpp[/B] file, now i want to distribute this class to my other xxx(what so ever), [B]What i want:[/B] 1.Allow them to see what methods and attributes are available …  |
| | IF i have this function... [CODE] node* get_lowest(node* root) { node* min = root->child[0]; for(int i = 0; i<root->child.size();i++) { if(min > root->child[i]) min = root->child[i]; } cout<<"Here it is:"<<min->data<<endl; return min; } [/CODE] how do I get it to return the smallest indexed pointer? for example if root->child[0] and … |
| | i have just started learning C++,this is my first programming language. but i was solving some question in array,but this one was a problem to me. here it goes. create array,in that array find sub arrays(subset), in which there is a maximun number in increasing order. for example array below … |
| | Hi, I am making a program in which i need to append the file from the beginning. so i am opening the file like this wFile.open("sat.txt",ios::ate| ios::out | ios::in); moving the pointer to the beginning wFile.seekp(0,ios_base::beg); but when i try add data it is overwriting the data. Is there any … |
| | I have made a form that contains about 60 buttoncontrols, 7 panels and 10 textboxes. What happens when I drag around this Form etc.. is that the controls flickers very much. How is it possible to reduce this flickering. Thank you... |
| | I've always been curious: in VS, and most other IDEs, you are allowed to do something like this: [code=c++] //in file class.h class blah { //prototypes, members, blah, blah blah } //in file class.cpp #include "class.h" //method definitions... etc. //in file main.cpp #include "class.h" int main { //do stuff with … |
| | Hi I work on a anti-virus programm. The anti-virus program should start when you boot the computer. So I thought it is good to use a HKey to start it always. How can I make such a HKey which starts my program? thx |
| | Hello guys! I just started learning c#.net. I able to make a simple report using crystal report. Now, my problem is I can't include data which comes from the textfields in the forms of my application. ex. I have value "alpe" in my textbox. and I want to include this … |
| | plz help me to set up pdcurses with visual studio 2005. |
| | Hi, Im new to C# and need help with my program that im writing i need to let it read an XML in the first window and when i press add program a second window opens (both windows i have) i want it to write the XML so something like … |
| | ) Hi Guys, I am working now in a project that is placed into my docs\visual studio proj, that need to use . h files, placesd in c:\prog files\windows sdk and c:\prog files\OpenCv. Into these directories have another subdirectories with these .h that into them are included others .h files … |
| | so my program has to read data from text file and pass it to the function. text file contains integer and string in every line. it looks like this: 23456 john 96512 martin 56985 wendy i've written it in C using this code: while (fscanf(filestream, "%d%s", &key, &value) == 2){ … |
| | can any one please identify the mistake in my code??? my code is:: [code] #include<iostream> using namespace std; class Stack{ int *arr; int size; int top; public: Stack(){arr = NULL; top = 0;} Stack(int sz){ arr = new(nothrow) int[sz]; if(!arr) exit(1); size = sz; top = 0; } ~Stack(){delete []arr;} … |
| | Hello, I am getting the follwoing error in my program: *** glibc detected *** free(): invalid pointer The program is as follows. [ICODE]int main() { operation1* sjob1 = new operation1(); answer* ans1 = sjob1->execute(); delete sjob1; operation2* sjob2 = new operation2(); answer* ans2 = sjob2->execute(); return 0; }[/ICODE] I have …  |
| | Hi I am making a rock, paper scissors game for fun & for practice. My problem is; I am trying to create a string by adding 2 character variables together. How do I do this? Do I use the insert function? Or something I think is called crstrt or something … |
| | I'm trying to read a file into a vector using structure...[CODE]#include <fstream> #include <iostream> #include <vector> #include <cstdlib> using namespace std; struct StudentRecord { int ID; char FirstName[30]; char LastName[30]; char Grade[1]; }; void read_file(char FileName[20],vector<StudentRecord> &students) { ifstream Students(FileName, ios::in); char S_ID[10]; /* char FName[30]; char LName[30]; char S_Grade[1];*/ … |
 | Hi, to answer this question you need to have some experience about php... i'm planning to create a http server that supports cgi. Does anyone see the problem in C++ -source? Php doesn't give any output, but if I don't set the rfc3875 environment variables, all output comes normally (expect …  |
| | Hi, I am looking to create a C# application that when ran remains inactive (and hidden) untill I hang the mouse over something.. such as the 'My Computer' icon on my desktop (it will then display a message). Is this possible? If so, can anyone point me in the right …  |
| | Hi , Can ne1 tell me how 2 write a c++ program to find out the determinant of a (mxn ) matrix (need not to be square ).. If possible give me the code ,of some link whr I can find it ...  |
| | Hey everyone, I'm relatively new to C++, cant seem to find a solution to my problem. I'm trying to randomly generate an array of class objects. I'm using rand() to generate a number 1-3, for the number of objects to generate. For some reason when I use: [code] int c_gen … |
| | Hi I'm designing a code where one can guess the Magic Number. In my code I have this part here where I declared the randomNumber after the class Form1. (the green mark below). Can somebody tell me what's the name of this part here? Is it static variable? And what …  |
| | hello, i'm new to cpp & I wanna know that in C++ if there is multiple inheritance is done suppose, Class A & Class B public,protected member is inherted in Class C like, [code] class A { protected: int no1; public: void get_a(void) { cout<<"Class A"; } }; class B … |
| | I'm getting an error where it says I'm trying to use a null pointer. Then when I click ignore another error saying I tried to read or write protected memory. Any idea how to fix? [code] private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) { using namespace System::Runtime::InteropServices; using namespace System; using … |
| | im making a singleton class in c++ and have a couple of questions. first, heres my .h and .cpp files: [CODE] // Singleton.h class Singleton { public: static Singleton GetSingleton(); void DoSomething(); ~Singleton(); private: Singleton(); static Singleton* _instance; }; [/CODE] [CODE] //Singleton.cpp Singleton* Singleton::_instance = 0;// initialize pointer //********************************************************************************************* Singleton::Singleton() … |
| | Hi all: Can anybody tell my why this simple code which used pthread_cancel to kill another thread throws "terminate called without an active exception". Yes , I used google but what I found is not what I want. I want to kill thread at once so I use pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL); … |
| | 10 marks Write a RECURSIVE function which when passed a string s will return true if s is a palindrome and otherwise false. A palindrome is a string which is the same if reversed eg radar, rotor, noon, racecar. past paper question which im doing at the moment as got … |
| | Hey guys, I have what I would consider a fairly unique problem. I'm not even sure where to start looking for a solution. I have template class that uses a typedef to define a map. But when I go to make an iterator for that map, I get a compile … |
| | Hey guys, I've been developing an application which transforms files generated by an aircraft transponder into KML files that will be loaded on Google earth. As these KML files are more or less XML files I'm trying to parse XML files. I have downloaded and the xerces library. According to … |
| | hi, i am not really that good at c++. i have created an application which dynamically loads dll's as types of 'plugin' the problem i am trying to overcome is linking back to code in the application from the dll. i am currently within the scope of a function of … |
| | Here is my code: [CODE] #include "Poly.h" int main(){ Poly p; int degree = p.degree(); cout << degree << endl; int coefficient = p.coefficient(5); return 0; } [/CODE] [CODE] #include<iostream> using namespace std; class Poly{ public: Poly(); //constructor int degree(); //Returns the degree of the polynomial int coefficient(int); //Returns the … |
| | Would someone be so kind as to help me with this insert. The function insert takes two numbers, num and num2. num is the number to insert in the tree and num2 is the number of children to the parent node where num is inserted. I am getting errors for … |
| | Hi I am studying for my C++ exam coming up & I have this practice question thats confusing me? [QUOTE]Given enum months{Jan = 1, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec}; write a C++ function that takes currentMonth of type months as the parameter, and returns … |
| | Hi, I have a c++ program which uses the api's of a utlitiy. As per the document I have to include the path of binaries for the utility in my code. I am not sure why that is required and how to inlcude that. Any help is appreciated Thanks |
| | I am a newbie and want to build a excelchart from excel file in Borland C++. Can anyone helpme out. I have installed the excel components in my codegear project. |
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