51,593 Topics
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| | this programme should calculate users amount of watt consumed based on their appliances and the approximate number of hours is used in a day, week or month. the basic requirements are; give user option of selecting predefined home appliances or entering their own and corresponding watts per appliance,list home appliances …  |
| | Hi, I have faced a problem that I have a vector in my class which I would like to initialize using constructor initialization list with some thing like this std::vector<double>({1,4,5}) which is only allowed in c++11 which is not what I am looking for. I could only intialize it with … |
| | Hi everyone. Well, I'm overwhelmed with the amount of C++ books out there and own a few now. I'm specifically looking for a C++ Reference book which lists C++ STL libraries and functions like the orielly C++ pocket references on C++ or STL. Orielly's C++ in a Nutlshell looks pretty …  |
 | this is the question : Write C++ a program that reads a person's age in years and print his/her age group. See the table below. Age------------Group name 1 year---------Childhood 2-3 years------Infancy 4-5 years------Preschool-Age 6–12 years-----School-Age 13–17 years----Adolescence 18–29 years----Young-Adulthood 30–39 years----Thirties 40–64 years----Middle-Age 56–48 years----Aged 85 years ------Very-Old You HAVE … |
 | when we create the window, we can choose some styles. but i see 2 problems: - how can i hide the border?(i have seen the msdn styles, but theres no const for that) - how can i change the styles after create the window? |
 | Consider this piece of code class Example { }; class ExampleAccessor { public: struct ConstructionFlag { ConstructionFlag() { } ~ConstructionFlag() { } }; explicit ExampleAccessor(Example&) { } ExampleAccessor(Example&, const ConstructionFlag&) { } }; int main() { ExampleAccessor accessor(ExampleAccessor::ConstructionFlag()); } Which is the minimal example of something I found in our … |
| | I am new to socket programming and I am trying to establish a connection between my client and server and if it's successful the user can 1) -Input message, the message will be send to the server -the server will send a "I got your msg" back to the client. … |
| | Write C++ a program that reads a person's age in years and print his/her age group. See the table below. Age Group name 1 year Childhood 2-3 years Infancy 4-5 years Preschool-Age 6–12 years School-Age 13–17 years Adolescence 18–29 years Young-Adulthood 30–39 years Thirties 40–64 years Middle-Age 56–48 years Aged … |
 | I was working on a praxctice program and wanted some numbers fixed dollar amounts to 2 decimal places while others to be displayed as plain old ints. I used this code, but noticed that now ALL numbers are set as fixed 2 place decimals. Is this how fixed and setprecisioun … |
| | i'm learning win32 from: http://www.winprog.org/tutorial/start.html but tell me(because i ear several persons) is these function correct? LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) { switch(msg) { case WM_CLOSE: DestroyWindow(hwnd); break; case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hwnd, msg, wParam, lParam); } return 0; } the DefWindowProc() is … |
 | class Base{ Base(); ~Base(); void doSomrthing(); } Class MyCLass : public Base{ std::string name; MyCLass(); ~MyCLass(); void init(); } MyCLass::MyCLass() { init(); //runtime error occurs with this line } void MyCLass::init() { name = "MyClass"; doSomrthing(); } I am having a trouble on calling child class' contructor. What is wrong …  |
| | how can i test if the wheel move was negative or positive? i belive these detect the mouse position: xPos = GET_X_LPARAM(lParam); yPos = GET_Y_LPARAM(lParam); but how can i test if any key(like alt\control\shift) was pressed? (i'm talking in same message) |
| | here is the code #include "stdafx.h" using namespace std; void GetPicture( ifstream& infile, int picture[8][8]); void GetCanvas( ifstream& infile, int canvas[45][75]); void InitBlank( int blank[8][8]); void InsertPictureInCanvas( int picture[8][8], int canvas[45][75], int startrow, int startcol); void ShowCanvas( int canvas[45][75] ); void Delay(int time); int _tmain(int argc, _TCHAR* argv[]) { //load … |
 | //A1 = 1 //An = An-1 +sqrt(An-1) for n > 1. //i need to find An of the series according to the estimation An=(n^2)/4 //how do i write a member of the series, let's say "An" in the code and to apply "n>1" in the code?  |
| | HI just starting learning c++ and i think it is a good choice what youn think ? my question why are we using vectors of objects..we can store infos inside a vector and the we can display them the problem if i quit the program everything is gone..work on memory … |
| | I have been absent from our programming lessons and have only attended 1 which was the first one where we just did "Hello World" out of a possible 5, but I still need to do the homework. I have been sitting here sweating over some code for a long time. …  |
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| | Hi all,can enyone give a solution ,how to emplement random function,so it could randomly select numbers from the saved text file(grid) and output in matrix . What i try to do is:Create animation project,but would like color matrix as a background.What i did so far is came up to the … |
 | i have some code about the Hanoi Tower here #include<stdio.h> #include<conio.h> #include<stdlib.h> void cthap(int m,int x1,int y1,int x2,int y2,int x3,int y3) { if(m<1) return; else if(m==1) printf("\nchuyen tang 1 tu (%d,%d) tới (%d,%d) ",m,x1,y1,x2,y2); else { cthap(m-1,x1,y1-1,x2,y2,x3,y3); printf("\nchuyen tang %d (%d %d) toi tang (%d %d)",m,x1,y1,x2,y2); cthap(m-1,x3,y3,x2,y2-1,x1,y1); } } void … |
 | C++ program to find sum of marks entered by 30 students using for loop or while loop/  |
| | see my windows procedure: LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) { bool blnMouseEnter=false; switch(msg) { case WM_CLOSE: DestroyWindow(hwnd); break; case WM_KEYUP: if (wParam ==VK_ESCAPE) DestroyWindow(hwnd); else { char strDataToSend[32]; sprintf(strDataToSend, "%c", wParam); MessageBox(NULL,strDataToSend, "keyselected",MB_OK); } break; case WM_MOUSEMOVE: SetWindowText(hwnd,"hi"); break; case WM_MOUSELEAVE://is ignored :( SetWindowText(hwnd,"bye"); break; … |
| | Hi to all,could anyone please suggest the animation project? I am on the first year of software development course and need to start with animation project.Any ideas,suggestions?Regards.  |
| | I'm doing a C program where the user is asked to enter an employee number. I know how to make the program ask again if the number doesn't exist. However, I don't know how to have the program check it from a *.txt file like this. EMP10-1234,smith_john,2 EMP08-0321,kent_brenda,1 EMP10-0501,delcambre_kory,3 EMP11-0112,pregeant_mark,3 … |
 | KNOW THE LOGIC BEHIND FACTORIAL PROGRAM And CALCULATE FACTORIAL OF VERY LARGE NUMBERS ! **WHat is the most efficient way of calculating the factorial of the number ?** http://www.lifengadget.com/lifengadget/program-to-find-factorial-of-number-in-c-plusplus/ |
| | Hey Guys, Was reading a few posts on here and looks like a cool place to come and try to broaden my knowledge and try and teach myself C++. I've only been reading a few days and I decided to try and create a simple calculator. I wanted to see … |
 | I want to use Stop-Process command (of PowerShell) in c#. I know how to use "Get-Process" command, But in the case of stop-process we have to give arguments(process name). In my case I am taking arguments from user in textbox. private void button2_Click(object sender, EventArgs e) { PowerShell ps = … |
| | hi i have this assignment in c++, i did it, but there is one tiny error i cant figure out the solution to it. the program below is supposed to take in 3 elements value inputs from user for 3 students. so if you run it, you get input student1 … |
| | I have read a text file to console and printed the file after reading, int textLength=0 int c; int c; FILE *file; file = fopen("ModestProposal.txt", "r"); if (file) { while ((c = getc(file)) != EOF) putchar(c); //fclose(file); } textLength = strlen(c);//get the length of the text How come I can … |
| | I have a text file points.txt which is formatted by Point2D/Point3D , X ,Y points.txt Point2D, [-9, -9] Point3D, [-9, -9, -9] Point2D, [-99, -99] Point2D, [-999, -999] Point3D, [-999, -999, -999] What I want to do is 1) retrieve the X and Y values that belong to Point2D from … |
| | hello we have to make a program that grades multiple choice exams from input files by the user and outputs the id of each student followed by their appropriate score. here are the input files: > exam file abcdefabcdefabcdefab 1234567 abcdefabcdefabcdefab 9876543 abddefbbbdefcbcdefac 5554446 abcdefabcdefabcdef 4445556 abcdefabcdefabcdefabcd where the first … |
| | hello everyone new here and i am currently taking my first ever c++ class, so completely new to c++. i made an account here, in which i was able to post a question i had a bout a project for grading program, then i received email of required activation which … |
| | i'm building a class with std::function for recive several parameters or none: class event2 { public: typedef std::function<void(...)> OnSomethingHandler; void operator() (...) { eventwithoutarg (...); } event & operator = (OnSomethingHandler Handler(...)) { eventwithoutarg(...) = Handler(...); return *this; } private: OnSomethingHandler eventwithoutarg(...); }; what i'm doing wrong with '...'? |
| | see these sample: template <typename a> class test { test(a argument) { cout << argument; } }; //declare it: int main() { test<string> a("hello"); } how can i do it: test a("hello"); |
| | Hi to all, i need to implement ofstream outfile code. Here is my code.How can i implement the ofstream outfile to ,so that the contents of the collection are re-written to the file before the application terminates. #include "stdafx.h" using namespace std; int _tmain(int argc, _TCHAR* argv[]) { int list[12]; …  |
 | I am using Turbo C++ 3.0. Things to be noted : 1.) I am very new to C++ 2.) I can only use the above said compiler. 3.) List, vector, functions, classes, file-handling, structures, templates and objects cannot be used in the program as per my assignment. Here's my Code: … |
| | I need C++ CODE for appending an int array passing pointer  |
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| | write and test(using a complete c++ program) a function that appends one array of integers to another. |
 | I have a problem when creating the Personal Finance Software in my group. It's part of my group's assignment. The EnterExpense() function only creates one line instead of many (if the user wants to continue entering more info). The ViewInfo() function can read the file, but cannot load the text …  |
 | Good day, I need help with my code. It's very simple and I was compiling it successfully at school, but at home I'm having problems with it. Here is the code. http://gyazo.com/dc78a310f529374338a244227b56215f and #include <cmath> #include <iostream> #include <conio.h> using namespace std; int main () { float a, b, c; … |
| | Write a program that will get/input 10 employees data, then input time started to work hours then minutes, then employee should input time finished work hours then minutes. then find how many hours 1 employee worked and the average time worked by all employees. use arrays. |
 | Does anybody know where I can find a c++ object oriented library for my c++ project where in short I can set each pixel on each frame to a specified color and saving the result to a .avi file preferably compressed. I know this sounds simple in theory but I … |
 | Hi , i'm Rawan 21 YO , CS student (3rd level) ! i'm looking forward to learn more from y'all!! hope i can help somebody someday ^^ |
 | Would anyone know of a C++ library which can enable me to encode and decode Ascii base 85 encoding? I'm having trouble finding one on the web. Thanks |
| | #include <string> #include <iostream> #include <vector> using namespace std; class Person { public: Person(); Person(string n, string a, string tel, string em); string getName(); string getAddress(); string getTel(); string getEmail(); virtual string whatAmI(); private: string name, address, telephone, email; }; Person::Person() { } Person::Person(string n, string a, string tel, string … |
| | To get and set various variables inside structs in C++The main struct object should be a pointer.the structs have got so many member function to get and set it variables from the user.finally the structs should be protected in such a way that no two users can change the details … |
| | Based on the loan application records of a bank and the example of query, write a program that determines whether a loan applicant is to be approved or disapproved his/her loan application. Criteria of an application to be considered are assets, income and the loan value. Applicant with assets > … |
 | A code to assist the user to store and retrieve personal information.According to the requirement specifications, thee software should provide the functionality to store contacts details of various people.It should also enable the user to store the details of meeting and appointments .In addition,the software should display reminders to alert …  |
| | Can someone please help me understand what the glMatrixMode() function does? I've read the API and looked on google but I cannot understand what it does. An anology or example would help. Thanks. |
| | I'm getting an error X#=0D,CS=0A97 IP=000001D1.The NTVDM CPU has encountered an unhandled exception . I wrote exactly the same program, but still i'm getting an error! Can you please tell me where the error has occured? Because i'm not able to find out! I'm Using Windows 7. http://www.4shared.com/file/xvAIAHNz/TELEPHON.html http://www.4shared.com/file/2SOg9Kqs/TELEPHON.html This … |
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