51,593 Topics
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 | Hi.I have a piece of code that compiles without even a warning on the borland 5.5 compiler yet complains bitterly when compiling with g++.I've heard that g++ emits more portable code but shouldn't they both be standard compliant?From what i've read in the '98 standard book this should be legal …  |
| | hello guys, here is another problem on filing. it creates the intended files and it is saving as well. but the problem is the numbers become invisible this time in those files. it is showing . . . (dots) instead of even numbers or odd numbers. Anyone has got any … |
| | Whats the difference between [CODE]using namespace NameSpaceName;[/CODE] and [CODE]namespace NameSpaceName;[/CODE] ? |
| | A recent assignment involved using very large integer values. A formula and very large x values were given and we had to compute the value of f(x). The tutor suggested using long long values as the 0 < x < 10^18. The function F(x) = F(x/2) - x if x … |
| | [CODE]1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 A * * * * * * * * * * * * * * * * * * * * B * * * * * * * * … |
| | Hi, I made a program that lists all possible anagrams of a word.Now I'd like to include anagrams of subsets of letters in the word.I have the code for making the subsets also now.But i do not want merge them as a single code.So I'd like to know if there …  |
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| | Hey DaniWeb :) So Im working on this C++ Project and I'm getting this wierd LINKER issue. So basically this is the scenario 1. non-static member (int) frame in Main.cpp 2. static get/set functions for frame in Main.h 3. I try to access the frame integer variable via the get … |
| | Hi, i am compiling the code in HP itenium server and i am getting an error. "Filename.cpp", line 129: error #2308: more than one instance of overloaded function "std::basic_string<_CharT, _Traits, _Allocator>::assign [with _CharT=char, _Traits=std::char_traits<char>, _Allocator=std::allocator<char>]" matches the argument list: function "std::basic_string<_CharT, _Traits, _Allocator>::assign(const std::basic_string<_CharT, _Traits, _Allocator> &) [with _CharT=char, _Traits=std::char_traits<char>, … |
| | Hi everyone I have an application which hooks to notepad and records the keyboard strokes, this works fine only when i have an notepad open before executing my application. Once the appl is running and then i open notepad my appl doesnt work. My ques is suppose i have first …  |
| | It will not add Inventory to the program. It prints out zeroes for the list. Please someone help me make this work [CODE]#include<iostream> #include<string> #include<iomanip> #include<fstream> using namespace std; struct Inventory { long Inventory_N; float Price; char Inventory_Name[50]; }; void menu (ifstream&, ofstream& , Inventory L[], int); void loadInventory(ifstream&, Inventory … |
 | Hi Guys, I'm kinda new at this..but I need help cause I keep on getting this error and I don't know what's wrong with it. So Please Help Me. Thanks. Here's My Code: [CODE]#include <iostream> using namespace std; int addition (int,int,int,int,int, int); int addition (int a, int b, int j, … |
| | :D Hello everyone, I am making a program where the user types in a string and then the string is saved to the clipboard, but I am not quite sure how. I have had a look at [url]http://www.cplusplus.com/forum/beginner/33250/[/url] but I am not quite sure how to implement this. I would … |
| | Hi, Borland C++ 5.5 isn't working.:@ Test file [B]Hello.c [/B][CODE]#include <stdio.h> int main(void) { printf("Hello world!\n"); return 0; }[/CODE] [B]Output :[/B] C:\Users\Administrator\Documents>bcc32 Hello.c Borland C++ 5.5.1 for Win32 Copyright (c) 1993, 2000 Borland Hello.c: Error E2209 Hello.c 1: Unable to open include file 'stdio.h' Warning W8065 Hello.c 5: Call to …  |
| | Hi, I am trying to call a simple fortran subroutine from a C++ interface and in turn call this C++ function from a C# application. Here is the fortran subroutine : [CODE]program hello_world2 implicit none c call hello call hello end subroutine hello !DEC$ ATTRIBUTES DLLEXPORT :: hello implicit none … |
| | hi, my file say ll.out having data like 12.0 , -25.30, 0,0,....etc i want to store data in a variable one by one say var=12.0 now i want to compare this value with zero.if var !=0 then want to store those values into a array. here i want to assign … |
| | Please help me!! I am new to C++ Here is a program helped me little bit. -------------------------------------------------------------------------- [code=cplusplus] #include <iostream> #include <fstream> using namespace std; main () { int filename; cout << "Enter file name"; cin >> filename; ofstream myfile; myfile.open ("filename.txt"); myfile << "Writing this to a file.\n"; myfile … |
| | Is it possible to use #ifdef with Boolean AND and OR? For instance something like [CODE]#ifdef WIN32 || WIN64 cout << "This is Windows." << endl; #endif[/CODE] The above doesn't give a compiler error for me, although it doesn't evaluate the or condition. |
| | Dear friends: I want to draw the sparse matrix sturucture to a file. The attachment shows an example. Could you please suggest me some methods to achieve this goal. Regards. Your Sincerely |
| | Hi all, I'm working on a C++ app that needs to communicate with a server. I was wondering if it would be possible to use Java for the Server, and C++ for the Client. I'm assuming it should work (without the use of JNI) because TCP packets are TCP packets, … |
| | I want let exe detect new version of exe. Then it will update itself. my program is develop in Microsoft Visual Studio 2008 C# windows form application.  |
| | I've been programming in C++ for quite some time now and I know all functions must return a value.. but can someone tell me WHY we return 0? I mean it compiles even when I don't put return 0.. and the program executes fine.. I can see in some functions … |
| | now i know how to run the program of while loop.But i have a problem in getting while loop using three counter |
| | I put a few solid days into finding a working method of capturing the screen and they either didn't compile or weren't quite what I was looking for. I am wondering if anybody has any example code to capture the screen every 10 seconds and save it to bmp. I … |
| | Hi Does anyone know how to playing a set of short WAV files without delay? I was using the following, but there is a delay in-between. PlaySound("a.wav",NULL,NULL);//PLAY WAV SOUND ONCE PlaySound("b.wav",NULL,NULL);//PLAY WAV SOUND ONCE or I need to concatnate a few sets of short WAV files into one descriptor so …  |
| | Hello Daniweb Community, I am migrating a VS2005 solution to VS2008 which often includes its own ras.h file. Unfortunately there are several projects including <windows.h> which includes "ras.h" from the Microsoft SDK. What I would like to do is get a refactoring tool to rename this header file and update … |
| | I would like to be able to dynamically load and display images in a Windows application written in an old version of MS Visual C++. I'm currently using functions as given [URL="http://forums.devx.com/showthread.php?t=89505"]here[/URL] by Karl Lilje. The pictures display fine when they are supposed to but they are not "persistent" (by … |
| | Hello, Beginner in C++ how to make this program if i pressed ctrl-c the program will quit. and there's a tiny problem. whenever i run my program it says that return 0 is unreachable code. thanks guys :) [CODE]#include <iostream.h> #include <stdio.h> #include <stdlib.h> int main() { while (1) { … |
| | does anybody know library for c/c++ to catch presses of keys like ctrl+shift+foo or fn+f7 etc. ? |
 | Hi, I'm making an MVC pattern based app and I though I would learn the principles first. I have reached a stage I need to connect the three elements. When Controller receives user action It calls right model. Now I need to register callback function so that when Model is … |
| | c++ programming from problem analysis to program design by d.s malik .. guys is this a good book for the beginner?? |
| | :) Hello, I am making a C++ console application where the user can encrypt and decrypt text. So far, I have successfully made the encryption part, but am not quite sure how to make the decryption part. For example: abcb -> 128.70.88.70. but I can't make it go back to … |
 | This is what I read about it. [CODE] virtual base class becomes common direct base for the derived class [/CODE] So my question is exactly what does this mean. What I believe it means. [CODE] class A { protected: int a; public: virtual int get_a(); A(void); ~A(void); }; [/CODE] With … |
| | [CODE]#include <iostream> #include <string> using namespace std; int main(){ string str = "Gregory"; int k = 0; for (k=0; str[k]!='\0';k++){ if (str[k]>=65 && str[k]<=90) { str[k]+=32; } } cout << str << endl; } [/CODE] is this code right  |
| | As we learn all, C dont supprot Inheretic, Polymorphism, Function Overloading... And Few Other Things... My Question is: What is this one? [URL=http://imageshack.us/photo/my-images/705/wico.png/][IMG]http://img705.imageshack.us/img705/5661/wico.png[/IMG][/URL] [code] using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace Example { public partial class WForm : Form { …  |
| | Hello, I m doing an exercise i found in internet. The exercise is the following: [QUOTE] Pancake Glutton Write a program that asks the user to enter the number of pancakes eaten for breakfast by 10 different people (Person 1, Person 2, ..., Person 10) Once the data has been … |
| | Im having some problems identifying where my error is. I've read through the post on this topic and applied the responses to my code but it's still giving me a warning. I am trying to use an array to compute the average of 10 numbers. [CODE]#include <iostream> using namespace std; …  |
| | Hi, does someone know nice, clean tutorial with links for all headers and libraries for connection to MySQL database? I'm searching for something good for about week now, but I've still found only some rly rly rly retarded posts, without any libraries for donwload or something, just code, i've tried … |
| | This assignment will require you to develop a program that reads a series of positive and negative integers from the user and loads these values into an array. The program then calculates and outputs the average of the values read. You will develop the entire program from the problem statement, … |
| | [TEX][TEX]This assignment will require you to develop a program that reads a series of positive and negative integers from the user and loads these values into an array. The program then calculates and outputs the average of the values read. You will develop the entire program from the problem statement, … |
| | Hello, I need advice. Ive been using Microsoft Visual studio 2008 and making c++ console applications for some time. I made a "Five in line" game. I have a complete system, so its playable, now i just upgrade an AI. So, I have the code for console version, but I … |
| | Hi everyone, I'm trying to learn C++ and about pointers and whatnot and seem to be a bit stuck... one of the exercises we were given involves passing an object (a Driver object) by reference to another object (a Manufacturer), which stores it. The Manufacturer object can then "employ" and …  |
| | Hi i need help, what i am trying to do is that the program should search & print the first occurrence of that integer in the array and last occurrence of that integer in the array. If that integer does not exist in the array at all, then the program … |
| | I have 2 error for my code when i compile and i need some guidance =) This is a small part of my program. Here's my code. I declare my function like below: [CODE] void working (Stack& deck, Stack& deckStack, List* column, Stack* stack, bool& loadGame, bool& exitGame, bool& newGame, … |
| | Hi all, Can any one please help me how to call an function from dll in vc++. [CODE]// test1.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include "windows.h" #include "conio.h" #include "windef.h" int _tmain(int argc, _TCHAR* argv[]) { HINSTANCE instcall=LoadLibrary(TEXT("c:\\test2.dll")); if(instcall==NULL) printf("Failed to load dll"); … |
| | Hello, I've confused myself a bit with virtual functions. I know they're useful when you want to call the parents function via casting the class to it's parent, but I've found myself scratching my head on few cases. So... Lets say I have a parent Class P and a child … |
 | I writing simple cmd game. My question is how to use timing function while I use _getch() command? Because this getch function stops the timing and the timer continuous after I click the keys.:@ |
| | Why doesn't this work: [CODE]#include <iostream> class myclass { public: union d { int i; }; }; int main() { myclass i; i.d.i = 3; return 0; } [/CODE] but this does: [CODE]#include <iostream> class myclass { public: union { int a; }; }; int main() { myclass i; i.a … |
| | Hi, i'm having a few problems when debugging my project. Basically i have two errors; Error 2 error C2065: 'cout' : undeclared identifier Error 3 error C2065: 'cin' : undeclared identifier This is where the errors are (It's a header file) int temp; cout<<"Enter the Client Number : "; cin>>temp; … |
| | is it possible to have a back() in stack....i know queue and vector has it... [CODE] #include "Card.hpp" #include "Card2.hpp" #include <stack> using namespace std; typedef char StackItemType; bool Card::isEmpty() const { return cards.size() == 0; } Card Card::see() const { return cards.back(); } Card Card::pop() { Card c = …  |
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