49,762 Topics
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| | Working on another c++ assignment and I need to make an input of "X" function as an end to the program without using an exit() command. Just want to know the easiest way to make that happen. Thanks for the help. [code=CPP] #include <iostream> #include <string> using namespace std; int … |
| | Well I have a doubt about where can I find some examples about this funcion, I need to use it on a program. Any ideas are welcome xD |
| | hello everyone i am new to daniweb but not new to this field.... I love programming and have made a few games on an older version of turbo c++ which is dos based and supports VGA mode with just 16 colours.....i couldnt learn much coz i didnt had internet connection … |
| | I have a device plugged into a USB port in my computer and would like to make a C++ program that controls it. I have a program that already does this, so is there a way to monitor the data that is sent to and from the device? I have …  |
| | I want to make sniffer in C++.So can anybody help me out by providing codes?? |
| | For some reason, my numbers aren't adding in correctly and it's taking the -1 sentinel value and adding it into the total. [code=C++] // worthless testing.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include <iostream> using std::cout; using std::cin; using std::endl; int main() { int …  |
| | Hi all! Does anybody know how to generate a makefile from a visualStudio project? I kind of remember this was possible years ago, but can't find this option on the VisualStudio Express edition 2008 I am using now... I have to transfer projects from VS to eclipse and need the … |
| | For instance, let's say I have two images preferably jpeg/bmp that are 128x128 - I would like the code to stitch them together so the resulting image is 256x128. I want a c++ program for it..is it possible using files in c++.  |
 | I have a BaseClass, which everything inherits in one way or another, and what I want to do, is whenever one of the classes that inherits this BaseClass it adds a [icode]std::vector<instanced class>[/icode] into the list of classes that BaseClass has, and whenever a class tries to add an instance … |
| | I am writing a method that has to do with strings and I was stuck on how to go about coding this. Any help getting it started or tips at all would be great. Thanks. MyString::MyString(const char* s) This constructor takes a pointer to a constant C-style string as its … |
| | I was looking through the source code to a game, and I came accross this line: [code=c++] static ConCommand name##_command( #name, name, description, flags ); [/code] I was wondering what all the hashes(#) do ?? |
| | I want to be able to find a class with a variable in it: [code=c++] for(int i=0;i<classes.size();i++) { if(class[i].name == classes[i]) return class[i]; } [/code] I think class would be a list of classes that are instanced. where classes is a vector of strings. Is this possible? |
| | Hi, I want to design a two dimensional matrix C++ class of myself. In prospect this class should implement such functions: 1. It should be able to be initialized by a binary data file(a .raw file without any header or format infomation.) with the file name as an argument of … |
 | Hey I just got this book Accelerated c++ and it seems pretty good, but I'm having one problem in chapter 4. When I compile my grading program in chapter 4. I can't get the final version to work. I believe I'm supposed to enter a students name followed by grades, …  |
| | what do u mean by this code below? 1)vector<int> V(alpha); 2)vector<int> V(vector<int>) Whats tat declaring? Its not normal vector declaration. Plz help. Thnx |
| | Hi; I want to add a string of numbers(e.g 9999) which are stored in a text file. [code] #include <conio.h> #include <stdio.h> #include <stdlib.h> void main (void) { clrscr(); char ch; int x=1; long sum=0; long integer; FILE *fptr=fopen("thousand.txt","r"); while (ch!=EOF) { ch=fgetc(fptr); ch= .....................I AM STUCK HERE.............. } fclose(fptr); … |
 | I don't understand why can you do this: [code] Employee *emp; if (condition1) emp = new Employee(); else if (condition2) emp = new Manager(); [/code] but not this: [code] Employee emp; if (condition1) emp = Employee(); else if (condition2) { emp = Manager(); [/code] Maybe this is a TERRIBLE idea, … |
| | Sir, i have a numerical method project. I want to be different, so i try to make a program that can read user input, ex : sin(x+3)^(x*3^x), and find the root of the equation. I already implemented Reverse Polish Notation, and also shunting-yard algorithm. But, i found out that all … |
| | hello, yesterday i was learning inheritance in C++... My teacher has told me that "Inheritance means using properties(variable,function etc) of one class to another class." but when i do it with example its not working.. [CODE=C++] #include<iostream.h> #include<stdio.h> class abc { int a,b,c; public: void exp1(); }; class xyz:public abc … |
 | 1) This is exactly what I'm encountering. I googled for that but none of those posts talked how to do this: member function B::fb makes a call to _beginthreadex with thread function which is a member function ( A::fa ). 2) It generates error C3867: 'A::fa': function call missing argument … |
| | how to compile c++ program when we r using two different functions which are defined in different file(s) under same directory in linux gcc??? |
| | CString constructor or assingnment or serialization of CString causes the application crash in a multi-processor environment,(this happens in a heavily loaded condition when more than 500 threads are running) whereas it does not cause any problem in single processor environment.  |
 | Does anybody know how to rotate a sprite around the center of the image rather than the top left corner in Dark GDK?  |
| | Is there any way that I can get the sin(), cos() and tan() functions to return an angle? For example, like when you press 2nd then sin on a calculator. Or should I use different functions? |
| | Hello! I'm trying to write a program, that replaces inscpitions like "\input{C:\FullFileName.txt}" to maintenance of FullFileName.txt. It now looks like [code=C++]#include <fstream> using namespace std; #define shint short unsigned int const char* InS ="input{"; ofstream log ("C:\\Users\\DimOK\\Desktop\\Lat\\TEST1\\log.txt"); bool EqN (ifstream &as, const char *ba, shint l){...} // takes l chars … |
| | Dear Sir/madam, I am working on Solaris 8. dbx is showing memory access error in the following line: [code] template<class keyType_t, class dataType_t> int WrapperC<keyType_t, dataType_t>::insert(keyType_t keyVal, dataType_t& info_t ) { pair<map<keyType_t,dataType_t>::iterator,bool> retItor; retItor = subsInfoMap_obj.insert( pair<keyType_t, dataType_t>(keyVal, info_t ) ); ........ }; WrapperC class is derived from an abstract … |
| | Hello Everyone, i have made programs of exceptional handling in cpp, but i am not able to run them in Turbo c, what i have to do to run them plz. explain. thanks |
| | Basically I'm trying to run a simulation of neurons and this is the code that gets run in the main loop of it. [code=c++] class Neuron { private: double v, u, a, b, c, d, current, du, dv; public: double x; vector<double> pre; int id; vector<int> fired; vector<int*> post; vector<double … |
 | <<snip>> Original article can be found: here: [URL="http://www.geocities.ws/jeff_louie/safearray.html"]http://www.geocities.ws/jeff_louie/safearray.html[/URL] |
| | nw i hv been tryin a stuff tht m really nt sure if u guys understnd at once..bt sum1 hs to find a solution for it plzzzzzzzzzz... i need a code in C++ to do the following tasks...:- 1.) copy files from a folder 2.) save them in a different … |
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