51,593 Topics
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 | Hey guys, Could I "teach" my compiler to do automatic type conversions for me? So when I have this program: [code=cpp] #include <cstdio> #include <string> using std::string; int main(){ int x; string y = "1234567890"; x = y; printf("y: %s == %d\n", y.c_str(), x); return 0; } [/code] It won't … |
| | Hi guys :), long time ^^ I have a question, I hope to get the answer :) "what is the name of all c++ exception handlers?" thanks in advance :) |
| | I'm working with structures, but somehow it skips one of the user inputs for the pie's price: [CODE]#include <iostream> #include <windows.h> #include <string> #include <conio.h> using namespace std; const int ESC = 0x1b; struct pie{ string brand; float price; string flavour; }pies[5]; int main() { cout << "Structures."; cout << …  |
 | Could anyone inform me of how I would call the screen saver on windows xp? Edit: Just did some research on MSDN and found the WM_SYSCOMMAND, and i see something about calling the screen saver in there, but i am confused on how to use it. Any help? Thanks guys |
| | i need a program than can be ask user : name , age , id , and salary then shows me the maximum salary and minimum salary and then sort salary from maximum to minimum . please complete these program for me [CODE] public string name;a public int age; public …  |
 | Hi. I'm new to the forums, and I have a quick question. I would like to add 14 days to the current system date in a program. Here is my code: char date[9]; _strdate(date); char time[9]; _strtime(time); cout << "The due date of your books is: " << date << … |
| | HI For Christmas I got a book on game programming with allegro. I went through the process of setting up the files and ran, compiled, and linked the program only to find that depending on which compiler I used (Dev-C++ or VC++ 2008) it came up with different errors saying … |
 | Can anyone recomend any c++ 3D engines that are similar to pygame? |
| | Hi again. In one of my programs, I would like to put in a search type feature. I would like it, so if the user enters a book name, it returns the call number of the book. I would also like it ti display a message if the library doesn't … |
| | Hi I'm having a problem reading in a file. I am using BCB6 Personal Edition under Win XP. The file is always read correctly up to the 4413th byte then the data is corrupted. I have modified the code from a fixed array size to use a vector so I … |
| | My interested area: C++/C#, WPF, LINQ, DB relevant(MS SQL) Moving forward towards: F#, Silverlight |
| | Hi Again. I have a password field in one of my programs. I would like to display the letters as a *. Does anyone have some code to achieve this? |
| | Hi ! Some (weird) problem i got : I have a header file, InputHandler.h, which has one Class called InputH, and inside i have public: and a Void named Hi(). When i try to include InputHandler.h in PRPT.cpp, i get an error, weird one; The error says that i should …  |
| | Hi I am writing a code in VC++ char* style = "color:#4D4DFF;font-size:9pt;font-family:Arial;"; char* semicolonsplit = ""; semicolonsplit = strtok (style,";"); But in the last line I am getting an error " Access violation writing location 0x0041606d." Am I missing something. Regards Karan |
| | Ok so im still learning C++, looking at some directx and i come across a _ before a var and was wondering what it means. for example: pDevice->SetVertexDeclaration( _vertexDeclaration ); or in a error macro: SHOWERROR( “CreateVertexBuffer failed.”, __FILE__, __LINE__ ); first one is probably the best example. thanks.  |
 | help.. i dont know how to sort strings.. for example.. if i enter: [CODE]JOKER[/CODE] then the descending order of string must appear: [CODE]ROKJE[/CODE] i think of strcpy() ..but it i dont know what to place in the if().. here's my code.. [CODE] #include<iostream.h> #include<conio.h> #include<string.h> #include<stdio.h> void main() { clrscr(); … |
| | I've been working at this, ALL day... and stumped I have a class called LinkedList, which I am writing, Everything compiles, but at run time I get a segmentation default error. It occurs when I initialize a LinkedList object. I.e. LinkedList ll; // causes a seg def error at runtime … |
| | Hi [B]snprintf [/B]is working fine when i am not using [B]append [/B]function . But as soon as i use [B]append [/B]function [B]snprintf [/B]crashes . Please suggest why [B]snprintf [/B]is crashing after [B]append [/B]. What is special with [B]append [/B]function which is crashing this program Below is the program. #include<string> #include<iostream> … |
| | Hi I'm trying to convert a linux/gcc program to windows/cl But I'm having some problems understanding the inner workings of the ide called microsoft visual studio c++ 2008 express. I've started a "new clr project", and then added the .hpp file, that contains the header. But the compiler/f7 says that … |
| | hi, I am curious, how can I read a int from a text file( ex. num.txt). but this text file contains numbers without spacing (ex.1212132132313... 23156897984969.. 583852935792...) The problem is that this file has no spaces between numbers and when i try to read it into an arry, the result … |
| | how do i make it so that functions and procedures that are located in other files in the include statement have access to the global variables within main.cpp, thanks in advance.  |
| | how would I check how long a program takes for it to be completed. (i.e the time it takes for the program to be finished doing its calculation)) Thanks |
 | Hey men I'm using ubuntu 8.04.1.when I wanna compile a c++ source code with gcc,it says: gcc:error trying to exec 'cc1plus':execvp:no such file or directory |
| | I have an application which is supposed to move the mouse based on input like that from a keyboard. the code listens for the direction keys to see if they are pressed. the code works but only in 2 direction it can only move to the right and down. is …  |
| | hi, I must do in Qt a "undo" ( QKeySequence::Undo ) but I don't know do this.Help me ex. [CODE] void MyWindow::Save () { QFile file (fileName); if (file.open (QFile::WriteOnly | QFile::Text)) { QTextStream out (&file); out << textEdit -> toPlainText (); statusBar() -> showMessage ("message",2000); } } [/CODE] but … |
 | Hi' there... Anyone with an interest in AI ?? We have been working on an AI-system for quite some time and now invite others to participate. The basic concept in the "game" we are constructing is as follows: You have an aquarium filled with 3 types of insects. By adjusting … |
 | hello again, just tried to compile my project and i'm getting errors with a file cstdlib Error 2 error C2039: 'abort' : is not a member of '`global namespace'' c:\program files\microsoft visual studio 9.0\vc\include\cstdlib 23 Error 3 error C2873: 'abort' : symbol cannot be used in a using-declaration c:\program files\microsoft … |
| | Hello Friends, I am trying to porting an unix c++ program into windows using MSVC8.0 compiler. In my unix version there are some lines like [CODE] #include <sys/atomic.h> ... atomic_add_int_nv() ... [/CODE] Now, pls help me to find out the Win version of these code segments. Thanks, Amit |
| | Hello guys, I am new in this forum and i hope im gonna get some fast help. I have this problem where i should input numbers from a .doc file, and the program should output how many times the number of occurences of each number. ie: the numbers in the …  |
| | this is a really strange one since it doesn't make sense why the program just starts running then shuts down without executing the system("PAUSE") at the end. here is the source code, thanks in advance to any help. [code=cplusplus] #include <iostream> #include <fstream> #include <vector> using namespace std; int main() … |
| | When i compile this code i get an error which states main.cpp|38|error: no match for call to ‘(std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >) (long int&)’| I am going to assume that this is something to do with trying to put the string in a different kind … |
| | Hi ! Thank everyone who helped me with my other question ! But i got something else to ask... Let's say that in my C++ Console, the user sets its user name, and in the next time the software runs it says : "Hello, USERNAME !" But, Problem : I …  |
| | Hello everyone, got a really strange and annoying error. When i compile my program i get 2 errors and 2 warnings all 4 to do with stdlib.h error C2381: 'exit' : redefinition; __declspec(noreturn) differs c:\program files\microsoft visual studio 9.0\vc\include\stdlib.h 371 i did a little research on the problem and found … |
| | Hello, I'm writing a GUI using MFC. I have a number of press buttons that preform identical tasks on different members of an array. I know how to make a handler function for each button. I'm looking for a way to use the same function for all buttons and within …  |
| | Hello, What is Abstract classes.Please tell me the definition and how to implement this also tell me please. I'm waiting for your reply. Thanks  |
| | Hi, I trying to run a Axis JAVA client with a GSOAP C++ server. Here in the below given code I am trying to make an asynchronous call from the JAVA client using "sendReceiveNonBlocking" API. On the GSOAP server side I am using the "soap_send_..." for the asynchronous behaviour. I … |
 | Hi! This is Adnan I have a text file having 10 records. There are 4 fields and each field is delimited by a comma. I need to read data from text file such that when i input suppose Account number then the program fetch the record thru that number and … |
| | [code]#include<iostream> #include<fstream> #include<cmath> #include<iomanip> using namespace std; unsigned __int64 Fact(unsigned __int64 x ); int main(){ /*n! means n (n 1) ... 3 2 1 Find the sum of the digits in the number 100!*/ cout<<Fact(100); } unsigned __int64 Fact(unsigned __int64 x ) { __int64 num(0); if(x==0) return 1; else { … |
| | I made a program that computes a factorial of a number. [code] #include<iostream> #include<fstream> #include<cmath> #include<iomanip> #include<string> using namespace std; //unsigned __int64 Fact(unsigned __int64 x ); int main(){ unsigned __int64 num = 100; unsigned long double fact(1); for(unsigned __int64 i=1;i<=num;i++) { fact *=i; cout<<setprecision(50)<<"i is : "<<i<<" fact is : … |
| | How to implement hamming code in C++ or C I have a prog same as other user (Melissa). I need help to get me started in coding as i'm almost forgot everything i've learned on C or C++. The task is implement a program for any hamming codes by using … |
| | Write a C++ program that contains a structure named “Account” having four data members 1) Account number 2) Account holder name 3) Account type 4) Account Balance Account type may be Saving, Current, etc. In main function, declare an array of structure “Account” of size 10. Populate this array by …  |
 | OK, i recently got a few books on OpenGL, i also got Microsoft flight sim x, and a nice logitech joystick to use with it. so i want to try to figure out how to make OpenGL take input from the joystick. i haven't read much of the books yet … |
| | Hi, I've just been looking at Hello World applications for programmign CGI's - and ive discovered that: [CODE]#include <stdio.h> int main(void) { printf("Content-Type: text/plain;charset=us-ascii\n\n"); printf("Hello world\n\n"); return 0; }[/CODE] Compiles to about 15.4 kb, compared to: [CODE]#include <iostream> using namespace std; int main() { cout<<"Content-type: text/plain"<<endl<<endl; cout<<"Hello World!"<<endl; return 0; … |
| | I want to Show "ToolTips" when radioButton4 is Checked and when you Hover the mouse over textBox2. This works as expected. Now when I Check the radioButton5 wich makes the radioButton4 UnChecked I dont want the ToolTips to be seen when Hover the mouse over textBox2. I am trying to … |
| | hi, I was trying to implement the sieve of eroathoses (I know I spelt this wrong) and it works. But i was trying to find all prime under 2 million. The .cmd for visual studio just corrupts if I try to find all prime under 2million. I am guessing It's … |
| | Hi all. I wanted to run this class by some experienced programmers to see if I have any obvious errors and to get any advice otherwise. I created a test suite and everything seems to function properly so I'm interested in feedback on overall class design, choice of data types, … |
| | Hello friends, Suppose I want to write a dll file with MS-VC8.0 compiler. I need to add [B]__declspec(dllexport)[/B] for all of the functions which will be called from outside of that dll. Now my question is that whether it is possible to export all functions of that dll at a … |
| | hey, I am developing this game of snake, just like the nokia phones have. anyway i have worked on windows till now, but now i am using geany on linux. so there are quite some methods which are not standardised for all platforms. one of them is gotoxy() and i … |
| | Hi all, I have a problem with template methods, what I want to do is pass in a struct type as a template variable but I don't know the correct way to do it. Here is the method: [code] template<typename T> void SetSize(unsigned int size, string inClass, T &inStart, T … |
| | Hi, i have seen few codes where assert macro is used to make some checks on conditions. They used 'assert' so frequently (like in every destructor) that makes code looks too bad. My question is: [LIST]why people rely on assert so much. is it because is it easy to use … |
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