51,593 Topics
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| | Is it possible to have a auto-tracking event or something similar to track the database when it changes? For an example: If the database gets a new insert value from another application that I currently have: then My other application will notice it and fetch that data instead of getting … |
| | hi every ; i want to know how to start **simulation using c++** , i searched in many websites in order to find some hints about this subject but i found nothing . Best regards |
| | hello everyone, I seek help please to find a program c + + that can read images from different types bmp, jpeg, png and put the pixels values in a vector, modified pixels valus, then saved the picture change to a different location, I inform you that I am working …  |
| | Hi, I've been learning about the std::copy function in the <algorithm> header and I'm stuck on this exercise that I gave my self. Let's see the code snippet first: #include <iostream> #include <vector> #include <algorithm> #include <iterator> using namespace std; ostream& operator<<(ostream& os, const int p_val) { os.put( p_val*2); return … |
 | I want to write a class that do operation on two matrices by 2D vector but i have some problems with the 2D vector , any one can help me?  |
 | Hi, I m using turbo c++. I need ur help by sharing the code for moving to the field on the output screen by pressing arrow button from the keyboard. Please help me out from the problem. |
 | As heading shouts, I need to make source code formatter to format PHP Codes. RobertoP have written nice Lexical analyzer that means no need for me to tokenize file. I just do not know how to "juggle" with tokens to produce the formatted code. I appreciate any pointer especially simple … |
| | where to download g++ package for ubuntu 12.04 and how to install offline |
| | Hi I am attempting to pass a reference to an object from one function to another, is this even possible, if so what is the syntax this is an example of what I want: [code] class SomeClass { public: int a = 100; }; void second_function(SomeClass & ref_to_classobj) { std::cout …  |
| | I have successfully implemented Porter Stemming Algorithm. I wanted to project ideas, as to where I could apply it, a more practical application? |
 | Hey! When i compile my code in Qt5, i get an weird symbol of triangle with an "?" at place of an french À. I try to chaqnge encoding to Latin1: no changes. UTF-8 it's same and i can't edit it. I tried many encoding but no changes. Weirdly months … |
 | Hello programmers! I am trying to return an array, made up of 7 members, all type ints via a pointer from a function. Here is a prototype of a function that does this: `int[7] colCountArray={0,0,0,0,0,0,0} //array saved in Board obj.` int* Board::accessColCount() { return &colCountArray; } However, my compiler dosnt …  |
| | How come foo(3,3.14); Doesn't work but Goo(3,3.14); works? Please reply. #include <iostream> using namespace std; double foo(double a, double b) { cout<<"foo(double a, double b)"<<endl; } int foo(int a, int b){ cout<<"foo(int a, int b)"<<endl; } double Goo(float a, float b){ cout<<"Goo(float a, float b)"<<endl; } int Goo(int a, int …  |
| | what are the best way to understand c++ language? |
| | Hi there, I am implementing simple student class when i run the program it crashes after getting input for char* name. Program is as follows. #include <iostream> using namespace std; class Student { private: char* name; int rollNo; float cgpa; public: Student() { name = ""; rollNo = 0; cgpa … |
| | what are the rules of graph construction and using the example: S::= A/B A::=XA/Y B::=XB/Z |
 | Sorry for the confusing title, as I am new to C++ Basically, what I am trying to do is, to read a simple **test.txt** file's content, which are just two words actually: "Hello World" and desplay thier hexadecimal content in a shell, CMD or command line.(Whatever it is called), if …  |
 | in my code for what happens when I click on my MAIN BUTTON runs my function light hack. Inside my lighthack function is a for(;;) {} forever loop. Inside this forever loop is a break when a condition is met. The problem I am having is when I click on … |
| | I am a new user of c++ and not really clear on pointers and the like , I have tried to search the web for some reasonable explanation but they just don't make much sense to me still. I would like to know what I need to do to pass … |
| | can someone please let me konw what is the error in this code, not getting expected output. #include<iostream> using namespace std; class myclass { public: int& num; myclass(int number) : num(number){} }; int main(){ int num1= 10000, num2 = 333; myclass mm(num1); myclass nn(num2); cout << mm.num << endl; cout …  |
| | WARNING: If you don't like horribly messy questions don't read on... Autodesk Inventor is a 3D parametric CAD program and plugins can be made using COM. I have no experience with COM and some of my naive COM type questions go ignored in the Inventor forums... Look at this: hRes … |
| | **PLS HELP ME, design a digitally controlled washing machine that sets the wash temperature to 80degree celcius for cotten clothes 40degree celcius per quick wash and 1000 revolution for rinse and dry only using MICRO SOFT V. STUDIO 2010 c++ programming, PLS ITS URGENT! |
| | Hi again everybody. Has anyone used tnFox Gui Toolkit? I've just looked at FLTK which seems to be perfect if you want to creat a small file size and easy to use. I'm exploring other options like this too. Is tnFox small in filesize. wxWidgets generates a rather big file. … |
| | I am trying to write some code to regex search against wide strings. The problem I am having is that the regex operations ( `regex_search` in particular ) does not take in wide arguements. Here is the snippet I am having trouble with: Function Header: void scan_filesystem( wpath const& f, … |
| | Develp a program to dertermine examination sitting arrangementfor classes above 500 in an institution of learning |
| | I code this exercise in c++ with title: "count number of occurrences of a character in a string" who can help me? thanks very much My code in c++: #include "stdafx.h" #include <iostream> using namespace std; unsigned count_check(char str[],char a) { unsigned d=0,lenght=strlen(str); for(int i=0;i<lenght;i++) if(str[i]==a) d++; return d; } …  |
| | I have two containers with the type of *A* A<string, double> s1; A<string, bool> s2; So I wrote the *A* class with the necessary functions and I used a template<class T, class E> for it. It has a function that returns a value of *E*, in my case, it returns … |
| | Hi All. I am new to C++, infact I started watching tutorials just about an hour ago. But, I had some experiece of Javascript, PHP, so It is fine. Now, my question is that, I am untimately, learning C++ to be able to manipulate a .wav files, just to write … |
| | Q1: and then breaks that number down to display the equivalent minutes and seconds. Have your program ONLY do the calculation if the user enters a number LESS than 50,000 hours.number of hours, If he enters 50,000 or more print an error message and quit.Write a C++ program that reads … |
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| | I need help writing in IPO Chart and pseudocode for an assignment asking to "Write a program that prompts the user to input a positive integer. He should then output a message indicating whether the number is a prime number." This is what I came up with for the IPO … |
| | i need help for an engineering class is this the correct syntax for this type of program to add two numbers together i need help at the line that says here this is for a c++ source file [CODE]// program #iomanip #iostream include namespace std; void main() { int number1,number2; … |
| | I wanna write a C++ program using arrays to construct a table which allows me to input the names and marks of 4 subjects of 40 students.Pls someone help me...... |
 | hi guys am a kenyan and i just got started learning the c++. its awesome. i have a question i wuld like to ask for answers soon. help me in making a program that will allow the computer to choose any number between one and a hundred then the user … |
| | In the conversion process of a java to c# project, i have come to java's ***indexOf()*** function in ***string.java*** class, which takes in two integers (int ch, int fromIndex) and return some integer value for a char (i'm guessing its an ASCII value). I need to know if there is … |
| | i want an output and i have tried but can't get this... #include <cstdlib> #include <iostream> #include <iomanip> using namespace std; int main(int argc, char *argv[]) { int r,c,s; for(s=15,r=6;r>=1;r--,s++) { cout<<setw(s); for(c=1;c<=r;c++) cout<<"X"<<endl; } system("PAUSE"); return EXIT_SUCCESS; } OUTPUT: X X X X X X X X X X … |
| | develop a c++ program for length conversions. The program should have a menu so that the user can select the type of length conversion by typing a value between 1 and 8 as follows: 1.centimeter to other units 2.Meter to other units 3.Kilo meter to other units 4.feet to other … |
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| | I'm asked to write a program that takes as input a char value and returns true if the character is uppercase; otherwise, it returns false.. so far I've made the definition of the function but I don't know how to get it's output on the screen through int main..could you … |
| | I was solving this problem and I'm struck in some problem..could you guys help me out?thanks Problem: Write the definition of a function that takes as input three numbers and returns the sum of the first two numbers multiplied by the third number. solution: #include <iostream> #include <conio.h> #include <math.h> … |
 | I am doveloping a game brain champ. This is its version 3. In this version I want to use mouse in addition with keyboard for input. I have successfully tested its standalone keyboard version as well as mouse version. I have used int86() function for mouse with 0x33 interrupt number. … |
| | I am reading from a file which has words like: connecting classes feeds I need to convert each character to lowercase and then call a function to remove suffix from each word. Say, first on connecting, then on classes... I am done with rest of the part but have a … |
| | I have been working on this for two weeks now and it has been progressing slowly. I am currently working on getting the the remove function of my program to 1. first check to see if there is a product 2. list the products 3. allow the user to select … |
| | I had recently started using Dev C++ 5.4 (earlier I was using Turbo C++ 3.0). Suggest me some good books to start programming in windows. And also my old programs which I had made in Turbo C++ are not compiling successfully. Fstream.h, iomanip.h and graphics.h are not not working in … |
| | Hi, i got a program that crashing while i want to delete a pointer value. here is the code: #include<iostream> using namespace std; class sab{ int a; public: sab(int x); ~sab(); int get(); sab(const sab &ob); }; sab::sab(int x) { cout<<"constructor"<<endl; a=x; } sab::sab(const sab &ob){ cout<<"copyconstructor"<<endl; } sab::~sab(){ cout<<"destructor"<<endl; … |
 | This is a card game which may have two or more players. Each of the players is given 4 face down cards at a time. The player can reveal his/her cards once he/she gets them. Other 4 cards are kept face up in the center for all the players to … |
| | Here is my first Code Snippet contribution: a C++ sub-routine that computes the roots of a quadratic equation. Notes: * This sub-routine checks if a = 0. * IF a = 0, then the equation is actually not a quadratic equation; it is a linear equation with one--if any--root. * … |
 | I'm using visual studio 2010 and C# and this is the Implementation of a WPF button. IT takes two textbox values and insert them into a database table. i did create a service based database and the did configure it on app.config file. Table has two columns, product id(int) and … |
| | My q is user put any num so program print out nxt ten num |
 | I am trying to find an area center of various types of rectagles. (Center of gravity and midpoint of 4 ertices never work so please think in different way) Please see this image: http://img22.imageshack.us/img22/7881/rectangles.jpg I have to position of red dot ` Point vertices[4]; Point areaCenter; ` I have to … |
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