51,593 Topics
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| | [code]#include <iostream> using namespace std; #include <iomanip> #include <string> int main() { string name; string number; double bonusContributed; const int FW = 10; double const ticketPrice = 5; int ticketsSold; double revenuePercentage; double moneyDistributed; double revenueGenerated, adminDeduction, balanceRaised; cout << "How many tickets were sold? "; cin >> ticketsSold; cin.ignore(); …  |
| | I'm very new to C++, my midterm is requiring me to read from a txt file I created line by line. Each line has different subject code that requires some calculations. My understanding was that you open your file and read in the first line in the file, thats the … |
| | Hello, I am getting a linking error, and I'm not sure what its referring to. Here is the error 1>Main.obj : error LNK2019: unresolved external symbol "public: void __thiscall BinaryHeap,class std::allocator > >,class Comp,class std::allocator > > >::insert(class Item,class std::allocator > > const &)" (?insert@?$BinaryHeap@V?$Item@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@@V?$Comp@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@@@@QAEXABV?$Item@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@@@Z) referenced in function "public: void … |
| | [CODE]#include <iostream.h> #include <fstream.h> #include <stdlib.h> #include <string> using namespace std; //const int MAX_SIZE = 10; //char determine_grade(int smarks); class student{ public: student(); //constructor ~student(); //destructor //char grade; //set values void set_mark(int); void set_id(string); void print_students_records(student, int); //get values int get_mark(); string get_id(); private: int mark; string id; }; //void …  |
| | I cannot figure this out. Can anyone see what is causing the problem? This is the error I get when I try to compile with the GNU compiler: sortQS.h: In function âvoid sort(UList<U>&) [with U = int]â: test.cpp:13: instantiated from here sortQS.h:16: error: ârecQSâ was not declared in this scope …  |
| | Hey!! I gotten the hang of C programming, logic design n all.. But am having real trouble understanding C++ concepts... My sems are up in a month! Any suggestions on how do i get it done before that???  |
| | Does the array fine but when it does the function it wont work, if anyone can help that would be great! [CODE]#include <iostream> using namespace std; void reverse(int a[10], int size) { for (int j=0; j<size/2; j++) { int temp = a[j]; a[j] = a[size-j-1]; a[size-j-1] = temp; } return; … |
| | Okay so I have been trying to get this program to work for a long time. Basically it reads a text file then populates a structure that is designed to point to the four locations around that object: up, down, left and right. I believe I have the program figured … |
| | Hey guys I am trying to work on some linked list stuff and I have my code put together but I wanted to post it on here and just check to make sure I am going in the right direction. Here is what I am trying to do: Create a … |
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| | I am trying to decide how best to implement a recursive quicksort on a vector. I know that I want to swap the first and middle elements of the vector and use the value in the first position as the pivot after the swap. After that, I have some questions … |
| | Hi everyone, I am trying to save ip addresses and mac addresses of a node in a structure.I dont know how to assign values.Please help. [CODE] #include <stdio.h> #include<iostream> #define nodes 15 using namespace std; struct nodes_struct { char ip[19]; char mac[19]; } ; int main() { char ip[19],mac[19]; nodes_struct … |
| | I'm suppose to write a program that asks the user to enters numbers which will be stored in a dynamic array. Then once they enter their first set of numbers they are asked whether they would like to enter another number or remove a number from their list. You can … |
| | [B]System:[/B] Vista What I want to do is to catch the mouse release event, which I have researched for but nothing useful came up. I found out the way to catch the pressed event: [CODE] #include <windows.h> #include <iostream> int main() { // Grab a handle to the console inputbuffer … |
| | Hi all, Im having a little trouble. I have to write a program that will input a string of positive integers terminated by a negative integer and then sort it.I have done the sorting part and it works fine.But the part that the string continues to get integers unless a … |
 | I have this question and might look stupid indeed, but bear with me. I have files in this hierrachy ProjectFolder/Panel/panel.h ProjectFolder/Panel/panel.cpp [B]AND[/B] projectFolder/Search/search.h projectFolder/Search/search.cpp I want to include search.h in panel.h I have tried many thing including [CODE=C++]#include "./search/search.h" #include "../search/search.h"[/CODE] but I have failed. Any suggestion on how to … |
| | I am writing a small algebra io program for an intro to c class and i am stuck. The idea is to get the user to input (a * b) + (c / d) + (e % f), in exactly the same format as you see it with the exception … |
| | So I'm trying to simulate some mouse clicks using WM_LBUTTONDOWN, BN_CLICKED, and WM_LBUTTONUP i looked it up on the MSND site and all i got was [url]http://msdn.microsoft.com/en-us/library/ms645607(VS.85).aspx[/url] which is not very helpful to me at this stage of my C++ knowledge. can someone help me out and tell me how … |
 | I'm putting my Q. here instead of the c++ board because this is not a c++ question, but rather a compiler question. I just installed vc++ 2010 express and the first difference I noticed is that Microsoft removed the Build menu and all its options. Now there is only one …  |
| | i`m using turbo c++ in windows vista & not able to get outputs for programs with graphics involved in it as part of computer graphics subject . Is it that it doesn`t support graphics .if,yes then can i use dosbox for executing those programs |
| | Good day all. I am trying to write a c++ rpg game, learning c++ as I go. As I understand it, the example below is a basic class, and I can access my variables with dot notation. Along with the class functions or methods if you wish. Thats all fine … |
 | Let's say we have this code : [CODE]#include <iostream> #include <boost/python .hpp> using namespace boost::python; class A{ void foo (void) { std::cout << "Hello World"; } }; BOOST_PYTHON_MODULE(hello) { class_ <A> ("A") .def("foo", A::foo); }[/CODE] and I have an object of type A named MyCPPClass and I want to make … |
| | I am writing a program that implements a topological sort. The actual question is as follows : Given a collection of n items and dependency lists for each item, determine whether the dependencies support a topological sort. If not, report this fact. Otherwise, find a topological sort of the vertices … |
| | Hello. I just want to know if i have a file on my disk named 'c://blahblah/mypic.bmp' & want to show it via a Turbo c++ program. How to do that? i have googled it, but no solution. |
 | I have a problem with this Window Procedure. in new versions of Windows OS, when I run the program, at first everything is painted & then paintings disappear (until the window receives the next paint message) [CODE] long _stdcall WndProc ( HWND hwnd, unsigned msg, unsigned wParam, long lParam ) … |
| | I have an array, which i want it common to both the f1.cpp and f2.cpp . since f1.cpp will be used to store some values in it and f2.cpp has to use it for some other computations , is there any way i can share these 2 variables . well … |
| | char fileName[100]; cout <<" please enter the name of the data file "<< endl; cin>>fileName; ifile.open(fileName); 1 how to put data in the filename (how to put numbers in the filename e.g lets name it sample.txt where to put this sample to be readen by the program 2. how to … |
| | hi, i'm working on a windows application with database sqlserverCE and my question is how connect to the database without writing where it locates in the connectionstring ( i mean auto connection ). i hope you can help me. thanks.  |
| | Hello, I'm working on a problem (Huffman Tree encoding/decoding) and I need to covert and Int to a char. I was trying to use [CODE] char temp = static_cast <char> (index); //index is an integer [/CODE] it compiles but if I try to print, it crashes so obviously that idea … |
| | I am writing a hangman program for class and so far I am able to read in and randomly pick a word from the file. The problem I am facing is counting the number of letters in the chosen word. Once I get that I can work on the rest … |
| | I am trying to place a friend function of a template class named sort in its own header file. I keep getting errors when compiling my test program. I have tried different things to fix it, but nothing works. My experience with template classes is limited as is my knowledge … |
| | Hi everyone, i would like to use your help from my programming c++ assignmnet. am trying to do it, and i have to do this assignment because its my last hope to pass the course, because my dr. told me if i didnt do it correctly i will fail so … |
| | I'm having trouble running C in eclipse. It first gives me weird syntax errors or tells me that # include <stdio.h> is an "Unresolved inclusion" It also will not let me build, saying "(Cannot run program "make": Launching failed)" Am I missing something? please help. Thanks |
| | hi, I have a simple monopoly style board game ready (in c++). I would like to ask you how can I add additional features to the game play such as ‘chance’ cards and ‘shake again’ squares. Is it possible to create a GUI interface for this game too? At the … |
| | Having issues with this program. I've been trying to identify all the areas where data is created, then tried to destroy it likewise after using it. I've put a lot of delete[] coef (coef is a pointer double array to hold coefficients). The program will run half the time, then … |
| | Hello, I am using a button event to activate a backgroundworker that will copy a string to the Clipboard. When debugging the code, I get this error for the Clipboard line in the backgroundworker. I am not sure what this meens or what I need to do here. I have … |
| | Hi, I wonder if there is any syntax that can detect if any Browserwindow is open on the computer and then close this/these windows. I use Firefox and then would want to detect if any Firefox browserwindow is opened and then close them if any is open. Thank you! |
| | In VBA, I create a 3-D array of doubles of dimension (6, 100, 240). The dimensions of the 3-D array is (0 to 5, 1 to 100, 1 to 240). Here is what a VB watch of the 3-D array looks like: [CODE]ir Variant/Variant(0 to 5) ir(0) Variant/Variant(1 to 100, … |
| | what AmI missing? I am simply trying to read in an array from a txt file and count the words. What am I doing wrong....here is the function[CODE]int countwords(ifstream& infile, int wordcount[MAX_WORDS]) { int count = 0; for( int i=0; i < MAX_WORDS && infile; i++) { infile>>wordcount[i]; count++; } … |
| | hello i calculated the run time of my program by clock instruction but when i run the program for one input in several times, the run time of program is different from previous. |
| | I found a tutorial of how to link object files: I have 3 different files. [B]main.c[/B] [code=c] #include<stdio.h> #include"reciprocal.hpp" int main (int argc, char **argv) { int i; i = atoi (argv[1]); printf ("The reciprocal of %d is %g\n", i, reciprocal (i)); return 0; } [/code] [B]reciprocal.cpp[/B] [code] #include<cassert> #include"reciprocal.hpp" … |
| | Good Afternoon, I am from brasil, and i am beginning to study programming, I bought the book "C++ How To Program", and i am now trying to make a small software with each class in its file, with prototypes and etc, here is a simple program that i made to … |
| | When you read a long document, there is a good chance that many words occur multiple times. Instead of storing each word, it may be beneficial to only store unique words. Write a program that implements this strategy. Read a word at a time from cin. Keep a vector<char*> of … |
| | is posible expalin my for what use %s in a code line [CODE]cmdLine.Format("\"%s\" \"%s\" %d %s %s %s", playerFile, moviePath, 10, cameraName, selectDate, movieID);[/CODE] i need now how works this code line |
 | [code=C++]#include (iostream.hpp) class Stocks { public: Stocks( int price); ~Stocks(); int get_price() const {return pps;} int set_price() const {pps;} int the_price_is (int pps); int pps; } int main() { Stocks AMX (35) cout << " Hello, please enter a symbol.\n"; if cin>> AMX; cin.ignore; cin.get; AMX.the_price_is cout<<" 35.\n"; return 0; …  |
 | can someone help me ,i am trying to enumarate some registry keys,i doesnt get me any error,just the output is wrong: [CODE] void Registry::open_key(HKEY Key , char* subkey) { RegOpenKeyEx(Key , subkey , 0 , KEY_ENUMERATE_SUB_KEYS | KEY_QUERY_VALUE , &hkey); } void Registry::querry_info_key() { RegQueryInfoKey(hkey , 0 , 0 , … |
| | Hey, im in need of a little help... im trying to have my .exe show an image with sdl, wait 2500 milliseconds, close the image and then return to the black console screen with my cout statments and whatnot appearing. But instead when i exit sdl, the whole program exits. … |
| | i am new in c++ programming language,i do not understand very well imprementation of linked list,can u help me by providing me algorithme for it  |
| | I've just read a few books on C++ and learned a lot about the language, but the books never mentioned how to add sound and visuals to my programs. I "think" that stuff is all stored in libraries, but... what tutorial should I read next to learn how to implement … |
| | i want to make this game....and i need help....in the game computer should play as a second player....and it should also win....is that possible....and is it easy??? |
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