51,593 Topics
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| | there is string of 0 and 1. The goal is to sort it. 2 pairs can be switched on each step. For example the mentioned above string can be sorted in following steps: 0. 00010111010 1. 00001111100 2. 00000011111 help please....  |
 | I am trying to install the boost libraries for a project I am working on. I extracted the archive to C:\boost_1_55_0, opened a command window and typed bootstrap.bat mingw as indicated on this site. In response, I receive the error message "\MikTeX was unexpected at this time". The only solution … |
| | Can we create an array of objects for a class having default constructor?. Justify your answer.  |
| | Hello Guys Well I'm working on a lottery game and I would like to ask something because I don't know how to test the sequence of numbers before to print out!! All I need is to check the series of numbers in the arrays before the program prints out a … |
| | Hey people! Can you please help me with this problem? I am so stuck on it and my instructor gave me hints on what I should do. No arrays or anything crazy yet, I'm still a beginer. 1.) Write a program that will compute average word length (average number of … |
| | we were given a task to create a for loop with where the user gives a number and became this output and we dont know if there is a sequence or an algorithm to it like fibonacci anyone recognize this pattern? input: 3 0|2 --- 0|2 Nice window. Thanks! input: … |
| | hello i decide to first learn about file streams before learning oop concepts in c++. want to read single digit from the textfile. actually text file contains numbers from 0 to 9. And these are 9 in a row and 3 row are there. you can think of its content …  |
| | Detect keyloggers and delete Keyloggers used code : GetAsyncKeyState function |
| | I know that in case of virtual inheritance, a vptr is needed to access the base class members, so I looked at a program that involved virtual inheritance but I was amazed at the size of the class. The code is below: #include<iostream> using namespace std; class Base { public: …  |
| | Consider the following class hierarchy of preschool teachers of ABC school, to answer the questions from i to iv. *Preschool teachers full time teachers part time teachers All Preschool teachers have a teacher ID, name, age and Highest qualification. A full time teacher has a fixed monthly salary. He/She has …  |
| | To all those who use C++ and to the creator of C++ . I want to ask a question . What is the use of the default case in a switch statement ? It is actually to be executed when no case is satisfied , but it is executed even …  |
 | hi gyes. can any help me how to save text with font and color using richtextbox, and open with same font and color in richtextbox. i'm using .RTF file type, but it doesn't work.  |
 | the program is about Blob<T>, where shared_ptr<std::vector<T> > as its data members. be noted that the real problem here is about shared_ptr of my own version (simple one) but atleast (should) worked with the Blob<T>, which is the std::shared_ptr did, but not with mine. [Error Msg](http://postimg.org/image/krwflmyhx/) the error msg above … |
| | Hi, I have run tuner from DirectX filter graphs. My Tv Tuner Card does not provide I/Q samples(Low frequency) as Realtek RTL2832u based USB Tuners so i need to get RF samples directly from TV Tuner Analog Audio out pin and store it in hard disk for digital signal processing … |
| | So, I've gotten myself in a bit of a pickle. I have been serializing data I collect with: vector<myClass> mVec; ... // mVec is filled with the data to collect for (auto it = mVec.begin(); it != mVec.end(); ++it) { myfile.write(reinterpret_cast<char*>(&(*it)), sizeof(*it)); } I've wrapped this code in a templated …  |
| | [program error](http://s11.postimg.org/okbmkhwkj/Untitled.png) this code, which is directly copypaste from the book itself, is appended to Blob.h., producing the above error. template <class> struct std::hash; class Sales_data { friend struct std::hash<Sales_data>; // other members }; // specialization namespace std{ template <> struct hash<Sales_data> { typedef size_t result_type; typedef Sales_data argument_type; size_t … |
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| | “Magic Video Center” is a video rental company which rent outs Movies and Music videos to its customers. The rental fees for the Videos are calculated as follows. For Movie Video:- Rental fee = (Number of Days * Fee per day) + Extra Charge For Music Video:- Rental …  |
 | I've never really tried MFC and this excercise is nothing more than trying it out. I found what seemed like a simple spoon fed tutorial to get me started [here](http://courses.washington.edu/css450/2008.Fall/web_contents/from_students/450Hints/mfc_tutorial/tutorial_2.html). Step 6 of the first part in that link says... > Inside 'Tutorial.h', change enum value of IDD to "IDD_ECHOBUTTONEVENT_DIALOG" … |
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| | A file is required to record the daily temperatures of a city for one week from Monday to Sunday. Write a C/C++ program to enter the daily temperatures along with the name of the day, read the file, compute the average temperature for the week and display it. The final …  |
 | Hi guys this is really important i searched an example code about "Username and Password Validation between Server and Client" through internet a LOT and i couldn't find anything... so please guys if any of you guys have anything about this topic please show me here thanks a lot guys!!! |
| | I need to copy modified data that is stored in an char* to another char* but I get an access violation error. Here is the code int EncryptData(char *data_source, char *data_cipher, size_t sizeofdata) { char *tmp_data; long long int digit; tmp_data = new char[sizeofdata]; /* Do some calculations here with … |
 | create a program that will: (a) accept the name, basic salary and years of servive of an employee. (b) use an appropriate construct to calculate the bonus due. (c) output the employees's name, years of service, basic salary and bonus in a labelled format. (d) the program must allow for … |
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| | Good day, I've realized hierarchy of classes: Point -> LineSegment. It's necessary to realize the following methods of the class: moving, stretching, rotating, turning, change on an axis. I'm trying to realize moving at a some distance on this code . What should I correct for in my code that … |
| | #include<iostream> #include<fstream> #include <sstream> #include<string> using namespace std; void main() { std::ifstream fin("romanian.txt"); std::ofstream fout("output.txt"); std::string line; int i; int count=0; string word; while(!fin.eof()) { getline(fin,line); for(i=0;i<line.length();i++) { if(line[i]==' ') { break; } cout<<line; } } system("PAUSE"); } the prog get crashed ... can any one please give me help … |
| | Hi everyone, i'm working with tao framework and i trying to make animation for my models from glut libraries but animation with using glut doesn't work (after compiling program closes) :( I tried found exception by try-catch but there are not exceptions. If drawing across vertex that animation will work. … |
| | **Question 1:** I want to create a save file for a game im creating in C++ problem is i can only use the vanilla headers in dev-cpp (which spawns another question id like to have answered/suggestions), my main problem id like to get past, is how the easiest format/way of … |
| | Hi can u please help me with my assignment I need to create new type using new class -Myint- which is tepical to int type but the new one must be 10 bytes long insteade of 4 bytes so the quesion is how to set the size of my new … |
 | Hello guys I have to make a test enviroment with two computers that both have VS2010 and Intel MPi installed. I finished installing the system today and I am trying to test it. Specifically I am trying to integrate the MPI library to VS. I have added the lib and … |
 | Does anyone use boost program_options? What I'm trying to do is this: [code] --Files 1.jpg 2.jpg 3.jpg [/code] The only thing I know how to do is [code] --File1 1.jpg --File2 2.jpg --File3 3.jpg [/code] Does anyone know how to do this, and maybe store them in a vector<string>? Thanks, …  |
| | 1. Assume the bank has 3 clients. Assume every client has 3 accounts. Use a two-dimensional array to store the credit of each account for each user. The array should look like this: Amount in account 1 for user 1 Amount in account 2 for user 1 Amount in account … |
| | Write a complete program that have two functions named CylinderVolume() and CylinderArea(). Both functions should receive diameter and height of cylinder as parameters. Each function should return the volume and area respectively to main program. Given formula: Cylinder volume, v=πr2h Cylinder area, a=2π2r+2πrh where π is pi, r is radius …  |
| | Hello everybody! I'm trying to count the number of occurrences of each word in a text file. Problem situation requires to realize menu using "switch" statement (If file exist or not). There are following errors in my program ("case b" and "default" is not working): **[C++ Error] 03_int.cpp(61): E2126 Case … |
 | I have downloaded the ftp library files from http://www.example-code.com/vcpp/ftp_passiveUpload.asp And set it in my code: #include "stdafx.h" #include "iostream" #include <CkFtp2.h> void ChilkatSample(void) int main(){ ChilkatSample(); return 0; } void ChilkatSample(void) { CkFtp2 ftp; bool success; // Any string unlocks the component for the 1st 30-days. success = ftp.UnlockComponent("Anything for …  |
| | hi programmer do a c++ project on library management system that enable search,update,add,delete and display data from it. |
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| | I want to check the perticular cell of the grid is focused or not, Which method will help me? |
| | Hello everybody! I'm trying to display the result of difference of two-dimensional vectors using friend overloading. Builder shows the following error after compilation (line 40). What should I change for in my code in order to find the problem? Thanks in advance. **[C++ Error] 05_Part.cpp(40): E2034 Cannot convert 'double' to … |
| | Hello. I would like to temporarelly store incomming win32 messages in a buffer. Then process all messages from that buffer manually. I actually have successfully stored and processed meesages in a buffer but I dont know if this is a best solution for my problem. LRESULT CALLBACK WinProc (HWND hWnd, … |
| | Using POSIX thread library two threads are created by this program. Main program creates a file, let say, ‘alphanumeric data.txt’. The thread one writes some alpha numeric value along with system time in this file. Second thread reads this value from file and displays the following information on screen: Alpha …  |
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| | write a program that dynamicall an array large enough to hold a userdefined number test score.  |
| | Write a class Date which consists of: Member variables: day, month, and year Member function DaysSinceFirstJan1() which returns the total number of days since 01-Jan-0001. Now write a main function which asks the user to enter 5 dates (day, month, year) which are stored in an array of objects of … |
| | You have to develop an electronic lunch menu for UCP executive lounge. Dynamically create a character 2D list with the name , space and price of different items as shown below. Assume that your price do not exceeds Rs 255. Coke 40 Fanta 40 Cupcake 40 Tea 10 Coffee 40 … |
| | Can Someone help me to Create a program that receives a character and returns true if a character is a VOWEL and false otherwise. |
| | Hello every one . . recently i have written this code to count letters and words in the phrase that the user enter , it worked once but when deleted (by mistake) and tried to rewrite it again it didn't work , so could you please help me to find … |
| | this program is simply for recording data of various staffs.Inheritance has been used for taking additional data.Staff is the base class.the classes officer,typist and teacher are the derived classes.again the classes regular and casual are derived from the class typist. **now my problem is that whenever i call the constructor … |
 | I would like to know how to search an array from a bunch of arrays. I would also like to know how I can search a close match to an array from a bunch of arrays.  |
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