51,592 Topics
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| | I am studying for a C++ exam and the study guide says "Be able to initialize arrays using literal arrays." Ok then, so I think well yeah that is easy, a literal array is something like.....Wait, I have no idea what a literal array is! From what I can find … |
| | -- If you know of a shorter way to do this .. post away plz -- the nightscost and totalcost cause erros ( call to undefined function ) -- get a fair amount of warnings, but i can live with warnings [code=cplusplus] #include <iostream> #include "Thefunctions.cpp" using namespace std; int … |
| | I have succesfully done this but with one error. using ... ifstream input("infile.txt",ios::in) while(input.good()) { input.getline(file,100); outputfile<<file<<endl; } then I have some new code that writes this into another file. You may laugh when you hear this but the problem is that it add an extra line to the output … |
| | Hi all. I am having a hard time trying to properly declare a header for my assignment overload operator function. My prototype for the function is: [code] const BSTree<T>& operator=(const BSTree<T>&); [/code] And my attempt to write the header for the method is as follows: [code] template <class T> const … |
| | This is my second time taking C++ course and I'm about to fail again since I'm barely hanging on with a C-D grade percentage. Here is the problem. I'm using the book "Beginning C++ Through Game Programming - 2nd Edition" and Dev-C++ to compile code. I'm not even majoring in …  |
| | [CODE] const SimpleCat * const FunctionTwo (const SimpleCat * const theCat);[/CODE] Ok so this is a function declaration. I'll pose my questions numbered so it is easier. I'm taking an online course in C++ but got stumped on this line of code. 1. The return type is of type SimpleCat … |
| | Hi, everyone. This is my first post. I'm just getting started, really. I took a computer science class this last semester and the professor's program of choice was Microsoft Visual Studio 2005. I enjoyed playing around with the codes, but I noticed that when making things for my own amusement … |
| | I have a CheckedListBox1 that contains checked and unchecked Items. What I am trying to do is to save everything into a vector. Like below, I can save all Items Text into vector<string> TextInfo but what I am trying to do is also for each Item save if that specific … |
| | Hi... I looking for a way to hide application from the Task bar bottom line and i need to accomplish it by using the application executable name only... All information that i have it the process name which runs in the task bar Ive googled for a while but haven't … |
| | i am trying to write code for my function project but i get errors can somone tell me if i am on the write track at least [code=cplusplus] #include <iostream> #include <iomanip> #include <string> using namespace std; //fn prototype for passing num of students in class // *** void DisplayStudent(double … |
| | I have a CheckedListBox with 95 Checked Items and 5 Unchecked Items. Every Checked and Unchecked Item has a "string" name. What I am trying to do is to locate All the Unchecked Items in this box and put these strings into my vector with the pushback method: Unchecked.push_back(); The … |
| | I am currently doing a project which consists of a Priority Queue. I have to simulate two boarding procedures of an airline. Rows 1 through 4 are first class seats (4 seats in each row) Rows 5 through 26 are coach class seats (6 seats in each row) Rows 10 … |
| | I have 2 buttons on my Form. My question is if button1 can activate button2 in any way. Is it possible to write any code inside button1 that will execute/activate the code inside button2 ? |
| | I have writtten a program and it is compiled smoothly. However when I try to run the program, the console just comes out a while and then closes. I don't even have chance to type in commands and the commands will be recorded by **argv. int main(int argc, char **argv) … |
| | Hi, Not sure if I'm doing something stupid here or not, I want a map of integers and objects (Rooms) which I've done, but whenever I create a new room to add to the map it appears to use the same memory location as the previous Room(s). The upshot being … |
| | Hello, I have an application in VC++6.0 that create a .DOC file for Word2007. When I inserting text and image (.bmp) in file .DOC I need retrieve current row. How I can do it? Someone can help me with link or sample code in VC++? Thanks :) |
| | i have here this constructor used 2 display a bitmap [CODE] void bitmap::display() const { for (int r = 0; r < numrows; r++) { for (int c = 0; c < numcols; c++) { if (grid[r][c] == 0) cout << " " ; else cout << "*"; } cout …  |
| | I've created, and written to a file. It lets me do all of that just fine, but when I try to delete the file it says that I do not have permission. Is there something wrong with my code?: [code] #include <cstdlib> #include <iostream> #include <fstream> using namespace std; int … |
| | I am an employee at Scottrade (competition with etrade if you guys have not heard of it) and they had me start out as an intern then joined the help desk starting this summer. In the fall I will be graduating from McKendree University with a B.S. in Computer Information … |
| | i am having a hard time writing programs that can read from a text file it should read beginning balance, number of transactions and description and amount after each but i am having trouble ex : sample input beginning balance=260.80 number of transactions =4 transactions: check-mallsounds -31.98 check-Atlantic 127.04 deposit- … |
| | I am having the following problem: I have written a console application that needs to allocate memory. I am now debugging the program. I do not have any problems the first time I debug. Bu then, when I find an error or the program crashes and the debugging terminates, I …  |
| | I have an assignment ... but it's really unnecessary to post all the details up. Basically, I have a header file and an implementation file (and I'm supposed to include an application file, but I don't have the slightest clue by what the professor means by that?). I have the … |
| | I REALLY HOPE SOMEONE CAN HELP ME ON THIS!!!! I have only today left to complete this project; and I'm lacking in some key areas to say the least. Here's the assignment: "Implement an event driven simulation of a bank. (Just customers in line - and 1 teller). A queue … |
| | OK, I'm under major time constraint and having difficulty understanding some issues in my current C++ class. I have an assignment which is maybe 20% done and no assistance is available. The final and assignment due date are SOON. So what I'm offering is maybe phone/chat assistance and I'll pay … |
| | [code] class sample { public : sample() { cout<<"\n In C'tor"; } void fun1() { cout<<"\n In fun1()"; } void fun2() { cout<<"\n In fun2()"; } ~sample() { cout<<"\n In D'tor"; } }; main() { sample *s = new sample; s->fun1(); delete s; s = NULL; s->fun2(); } [/code] Hi … |
| | How do I overload the input and + operator for quaternion class? |
| | Hello Friends, I got this assignment and need help to start, I dont need the code at the moment coz I will have to o it my self, but at now I just need hints to start it. The assignment is: [B][U]Del command[/U][/B] Time Limit: 1 Second Memory Limit:32768K Special … |
| | My homework requires me to write a program for a matrix that bubble sorts in descending order, then multiply by two and output results Tried doing these in different ways, maybe, someone out there can help.. #include <iostream> #include <iomanip> #include < cmath> using namespace std; const int NO_OF_ROWS = …  |
| | im making a random question game. what im having trouble with is figuring out the correct way to make it check the answers this is what i have. [CODE] for(int r=0; r<10; r++) { int theDice = ( rand() % 10) +1; answer[theDice]; cout<<question[theDice]<<endl; cout<<"Response: "; cin>>inquestion; if (strcmp(inquestion, answer[theDice]) … |
 | Why the selection sort output not appear? Anybody knows how to correct it? [CODE=C++] #include < iostream > #include < string > #include < cmath > #include < iomanip > #include < fstream > using namespace std; void SelectionSort ( int *y , int n )//selection sort function { int … |
| | Want to ask how to detect new line For example, I need to read in a text file in this format John 123 Y 1 abc def ghi Jane 456 N 1 xyz Jack 789 N 1 xxx xxx how do i detect the empty line and read in the … |
 | I have been working on this problem so much, I have started to think in Binary. what I am supposed to do is put User defined numbers in acending order. Here is what I tried. (please dont laugh) [CODE]#include <iostream> #include <iomanip> #include <vector> using namespace std; void testSort(int [], … |
| | I am working on a program (using MS Visual Studio 2005 professional) and have incorporated some Standard Template Library vectors. The program is very math intensive. When I run in debug mode, the debug checking provided by STL slows the program to the point that I am getting no work … |
| | We have a need to modify a program on a DOS machine written in Borland C++ version 3.1. Our customer threw away the Borland manuals some time ago. In particular we need the manuals detailing how to use the compiler in DOS. Help anyone? Thanks. Roy |
| | this is a c++ program. ok. so this is my problem where i am supposed to get data from one file, read it in and make the proper adjustments to it, and output it on to another file. i'm supposed to use structs. the input file has this data: 348 … |
| | Hi, I wish to output a string from a textbox to another file, here is what I wrote: [code] FILE*myfile; myfile=fopen("D:\\Profiles\\DqGw47\\Desktop\\hello.txt","a"); fprintf(myfile,"%s\n",textbox1->text); fclose(myfile); [/code] In my hello.txt: Set wallpaper= My problem is how can I control where to fprintf my string. In this example, how can I output the textbox … |
| | After read this file , i want to do a selection sort...below are the selection sort programming that i get from google [CODE=C++] #include <fstream> #include <string> #include <iomanip> #include <iostream> using namespace std; void sortData( string fId[], int noOfRows); int main () { string Id[100]; int total[100], i = … |
| | hey im trying to compile a c++ operating system but dont really understand the compile instructions! the instructions are in readme.txt! can any one help me please? mabe make them a little more simple? cheers [URL="http://www.programmersheaven.com/d/click.aspx?ID=F39294"]download link[/URL] |
| | okay i'm working on a very complicated problem (for me anyway) and i know i'm missing something somewhere. i need to be able to store data into an array but i don't want it looping right off. this is the structure for the data i need and my function headers. … |
| | I have an assignment. I have to ask the user for a string to search for in a file. The program reads each line of the file and compares each string to the user's string. It then displays the line of the file the string was found on. Lastly, I … |
| | well im writing a program where the user enters a number from 2 to 1000 and it displays the prime numbers. Its in a loop and i want it to stop when the users enters 'n' or 'N' well when i type n or N the program goes crazy haha. … |
 | I ran this: [code] cout << "has nan q?" << numeric_limits<int>::has_quiet_NaN << endl; cout << "has nan s?" << numeric_limits<int>::has_signaling_NaN << endl; cout << "has nan q?" << numeric_limits<double>::has_quiet_NaN << endl; cout << "has nan s?" << numeric_limits<double>::has_signaling_NaN << endl; [/code] and I get 0 0 1 1 why would … |
| | This code is in Unit1.h [CODE=C++] struct gydytojas { int gydid, amzius, specialyb, telefonas, asmkod; String vardas[25]; String pavarde[35]; String adresas[50]; friend ostream& operator<<(ostream& os, const gydytojas& obj) { return os; }; friend fstream& operator>>(fstream& os, const gydytojas& obj) { return os; }; }; gydytojas gydmas[100]; [/CODE] And this code … |
| | I can't seem to figure out whats wrong. This isn't a finished program but it should compile anyways. [ICODE]#include <iostream> #include <string> using namespace std; const string SENTINEL = "\n"; int main () { char letter; int letterCt; cout << "Enter a line of characters" << endl; /* TO BE …  |
| | I have a textBox that I with help of a Button turning to a Gray BackColor like this. textBox1->BackColor = Color::Gray; Under this textBox I have a checkBox. *(with default "checked").* What I am trying to do here is that when I "uncheck" this checkBox, the textBox will turn "Red" … |
| | Last question for today before you start hating me.. I don't know if this really belongs here, but I'll post here anyway. How do I make my programs stay on command prompt longer? Usually they just flash for a second if I don't open them up with command prompt. Heres …  |
| | Hi! Suppose i have a polygon with 5 points. They are constant. I use "gotoxy()" to define the point positions. Something like this: [ICODE] x1=30; y1=10; gotoxy(x1,y1); cout<<"A"; x2=50; y2=10; gotoxy(x2,y2); cout<<"B"; //.....and so one up five [/ICODE] Now i should to give a another point (X,Y), and calculate with … |
| | i want to make a error check on each input. if i only got 1 input.. then i just use while(input==false) so it will continue ask user to input if he wrong input but if i have many input,then the while loop will complicated.. for example: Enter ur gender Enter … |
| | Hi I'm using VC++.net 2.0 an creating a few technical indicators for grad school. I am having a problem creating the aroon indicator and I would appreciate some help. Here is a description of what the Aroon Indicator is : Aroon(up) = ((total_num_of_periods - num_of_periods_since_highest_close) / total_num_of_periods) x 100 Aroon(down) …  |
| | hi, i need a stl list to read a vector. I have a vector "vec" and i want to create a stl list, where i can insert new points to the vector list and remove. |
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