51,593 Topics
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| | I'm in the first grade in the faculty of computer science.As we learn programing so slow,I decided to go on by my own.Know is time to do the first game.Just want ideas to execute.The other thing want to read about moving objects,where can I find it! Thanks |
| | I don't know anything about programming but I would like to figure out how to program this idea I had for calculating prime numbers. I know that this looks a little bit jumbled, but logically it should work. My basic idea is that the square root of the first number … |
| | Please can somebody help me with Question Papers and answer Papers on [B]C, C++. [/B] I have a Interview tomorrow. Thanks and Best Regards, RAMYA |
| | So I've missed the past week of my C++ class due to the SEC swimming championships being a week long :@, and I've missed the whole topic on file processing. I've been reading the slides and a few tutorials via lovely google searching, but it's a little hazy. Can anyone … |
| | [I]<<split from [URL="http://www.daniweb.com/forums/post634169.html#post634169"]here[/URL]>>[/I] [QUOTE=Duoas;634670]If all you want is teletype output (like you get on the console, without any fancy graphics or fonts or etc) you can open the PRN or LPT1 device: [code=C++] #include <fstream> #include <iostream> using namespace std; int main() { ofstream printer( "prn" ); if (!printer) { … |
| | im trying to do the most basic c# program to show my college class and for some reason a couple of simple if statements are messing up my whole small program [CODE]using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ConsoleApplication1 { class Program { static void Main(string[] args) { …  |
| | Hello, i'm trying to get double buffering on my MFC C++ dialog based app in OnPaint() function. How can i do it? Thanks. |
| | Hi, In the code snippet below, I tried to write the contents of a vector to a file using ostream iterator. However, when I try to read the contents of the file using istream_iterator, there is a problem. When the istream_iterator object is initialized using ifstream object fin, the istream_iterator … |
| | hello, i have been struggling with this program for a few days now, and have decided to get some feedback. The program lets the user input a number from 0-6 (0 representing sunday and 6 representing saturday, and so on) for days of the week and you input a second … |
| | Why get the last char twice? [CODE] #include <iostream> #include <fstream> using namespace std; int main (int argc, char* argv[]) { if (argc == 1) return 0; char c; for (int i = 1; i < argc; i++) { ifstream input; input.open(argv[i]); while (!input.eof()) { input >> c; cout << …  |
| | The project that I'm currently working on is for an large embedded application with a multi-person team. During a recent review of the code I came across the following statement [CODE]bSlcIsolated[logical-1] = (!!p_bIsolated);[/CODE] The interesting part is the double inversion [CODE]!!p_bIsolated[/CODE] The register being double inverted, is a private byte … |
| | I am trying to read multiple files which contain values under various Column headers (like pressure, temperature etc)...I using "infile" to read values and assign it to a structure. However whenver there is a bad character in the file or less number than the number of parameters, the output gives … |
| | Hi, I am using CodeGear c++builder. Im trying to make a GUI to read, write and modify an .mdb( ms-acces) file. In my form i use TQuery, TDBGrid, TDataSource. So im able to load the database in the TDBGrid using SELECT. I can also use UPDATE, INSERT so that i … |
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| | Hi, I'm trying to read an excel worksheet that has cells with decimal numbers with exponents of 2 or more. When I read a cell that has a value of say 1002.00 in the cell, I'm getting 1002 when the code is reading the cell. In the formula bar in … |
| | I am trying to use Newtons method to find implied volatility of a Black Scholes Call. So given all the other variables, I need to find what volatility makes the black scholes call equal to the current call price. I'm running what I have below but keep getting a random … |
| | Hello I am trying to get this function to work... [CODE] int error(const char* s) { int f=1; while (*s!='/0') { if(*s=='/') { f=0; return(f); } s++; } return f; } [/CODE] I want to find out if in the string tat i am passing there is a character "/"....But … |
| | i have the following code which works, well its suppose to shift the letters of a text file by whatever the user wants, lets say the text file says "hi" if the user wants to shift the letters by 1 to the right it will become "ij" ok but the … |
| | /* i have forgotten how to do the setw for the output (ex. Find Holland, Beth: 5)...getting all of the numbers to line up. also, i need to know how to modify this program so it reads in 20 strings from a file. i want to name the file names.dat. …  |
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| | HI Guys. I'm trying to make my own lite program that can highlight specified chosen words (Syntax highlighting in short). I have a working method using Regex, but it is TOO SLOW. Here is what is currently: My Regex Statements: [CODE] public Regex SettingsAndComments = new Regex("--settings|-|", RegexOptions.IgnoreCase); public Regex …  |
| | Hey everyone, so I'm new in object oriented programming so I'm not sure about how to write this program. I need to create a die game with the class: DIE, that rolls the die. it needs to have a method called: "roll" that rolls the dice again and it needs …  |
| | The assignment is: A. Present a menu like the following: 1. Enter a char 2. Enter a string 3. Enter a float 4. Enter an integer 5. Display the sqaure of numbers from 1-100 9. Quit the Program Enter the Program B.The program should not quit until the user chooses … |
| | Hi guys, I have to write a program with a class that will take the number of the day in a year and display the month and day of that number. I'm stuck from the start. Can anyone give me a start that I can run with. I also need … |
| | Hello, I am try to compile this code using gcc in ubuntu. I get the error 'btree.cc:(.text+0x55a): undefined reference to `std::cout' '. I thought if i added using namespace std; it would start working but i am still getting the same error. Any suggestion on how i can fix it. … |
| | Hello, I need some help with my homework assignment fir my C++ class, here is a description of the assignment: Write a program that reads this file and finds the longest word that contains only a single vowel (a,e,i,o,u). Output this word (there will actually be several ties for the … |
| | I am trying to write a summation to aprox. pi. I am using a for loop and I cannot figure out where I am messing it up. I keep getting "program has exited with code 0" [CODE]for(int N = 0; N <= 15; N++) {double x9 = 0.0; for(int n … |
| | Please excuse me if this has already been covered before. I'm a C++ beginner, and in of the problems I have to do, the input has to be like this: 1) A number n is entered. 2) n number of strings are entered. I tried using a 2D character array … |
| | Hi all, im wondering if someone could offer a solution to my current problem which is passing and return information using pointer notation. I have created a small program using the class Person, who has a first and last name and methods to add and retrieve this information which looks … |
| | ok i have a 2d array and i want to trace through it. The Array is RDL DLU i have an entry point of Row1 Col1 which i think is letter R. On this array R means shift right L is shift left U shift up and D shift Down. … |
| | I'm taking my first class in c++ this semester, so i'm a newb. The only other programming experience i have is in python. My teacher gave me this assignment and i don't even know where to start. I don't want anyone to post any code, but a few tips on …  |
| | Hey guys, I am trying to write a program that will use command line arguments to detect user inputed keywords in a text file and output how many times the keyword/s appear. The command line should read like this... programname -f inputfile keyword1 keyword2...keywordN The problem I have is I … |
| | I'm using the header file below. I'm a little confused about how to store any matrices I create... If I do: [code=php] int main() { Matrix A(2, 3); Matrix B(3); return 0; } Matrix::Matrix(int mdim_, int ndim_) { data_.resize (mdim_*ndim_); for (int i = 0; i < mdim_*ndim_; i++) { …  |
| | ok so my code will output the message its suppose to if it doesnt receive any arguments and im 100% sure the problem is the if statement with the argv[1] because i always have problems with char type for some reason. :( [code] #include <iostream> #include <string> #include <sstream> #include … |
| | [CODE]# include <iostream> using namespace std; void init(int *Ptr, const int &s); void display(int *Ptr, const int &s); void sort(int *aPtr, int s); void swap(int *v1Ptr, int *v2Ptr); int index_of_next_smallest(int *aPtr, int *SiPtr, int s); int main() { int size, count; int *nPtr; cout << "Enter the size: "; cin … |
| | what is the counterpart of [CODE]start program.exe[/CODE] in c++?  |
| | Hello, I am not able to compile it on windows. It compiles fine in linux but not on windows. Well actually it compiles if i change a few things but there are many linker errors. Could someonline please tell me where the problem is at. Thanks [CODE]// Project: B*-trees floorplanning … |
| | Hi, My problem here is that, I want to add up the total of the few different items that are entered. I have no idea how to add them up, please offer some suggestions, thanks [CODE]#include<iostream> #include <windows.h> using namespace std; float weightcount(float w); float distancecount(float d); int main(void) { … |
| | I've been coding a little program which works perfectly, but I decided to upgrade it and add a few checkboxes. Now since i've never made one before I'm having trouble and I can't seem to find anywhere that can solve my problem. [code] void TheAppDlg::OnFirstcheckbox() { if(OnFirstcheckbox !=0) { m_cCharSet.SetWindowText(_T("123")); … |
| | [CODE]#include <iostream> using namespace std; class sMatrix { public: sMatrix(int,int); sMatrix (sMatrix&); int getR(); int getC(); bool rValid(double); bool cValid(double); void setEl(double,double,double); double getEl(int i,int j); int getVal(); void print(); void add(sMatrix&); private: int nr, nc; //number of row and cols int nent; //number of entries int nmax; //the max …  |
| | Hi I am using Rougewave library for one of my program. I am using the RWHashTable from it. during the startup of my program, I will load this hashtable with information read from database. so, I have the hashtable filled with data. and during runtime, I need to print all … |
| | Hi, This is the code segment: [CODE]template<class type> void merge_sort(type inputs[], int p, int r, int (*comp)(type, type)); typedef struct { vertex vertices[MAX_VERTEX]; int number_vertices; int adj_matrix[MAX_VERTEX][MAX_VERTEX]; } graph; int compare_vertex(vertex v1, vertex v2) { if (v1.f < v2.f) { return -1; } else if (v1.f > v2.f) { return … |
| | Hi all, I am trying to write a small game with a tiled gameplay area. I have a vector of Tile objects - vector<Tile> area_tiles; - and I'm trying to add Tile objects to this vector like so: [code] Tile t(); // initialize new tile object area_tiles.push_back(t); // and add … |
| | MSG msg ; HWND hwnd; WNDCLASS wc; to me this syntax looks like msg hwnd and wc(all lower case) are variables is this right? and with the exception of wc would changing the other 2 change anything? |
| | Can someone help me with the code to display the second largest value in a set of numbers using '[B][U]while loop[/U][/B]'??? I have done programs using [B][U]while loop[/U][/B] to display the largest value, as well as the largest and smallest value.But this seems a bit tough for me. |
| | I have the following code: my add function and M.add(N) statement keeps turning up errors I'm not sure how to fix it. I also need a getVal function but I'm not sure what to do with it. [CODE]#include <iostream> using namespace std; class sMatrix { public: sMatrix(int,int); int getR(); int … |
| | Here's what I'm trying to do: I want my program to spawn a Msgbox on the first day of every month with some information for the user. Please walk me throught it EXACTLY, as I'm a beginner :icon_mrgreen: |
| | e.g. [CODE] class B { public: virtual ~B() {printf("Base class Destructor");} }; class D { public: ~D() {printf("Derived class Destructor");} }; [/CODE] Is it somehow possible to altogether avoid printing 'Base class Destructor' when an object of class D is destructed (of course without causing a memory leak).. If you … |
| | Now, I am sure there are more than 3 problems with this thing, and it's been sort of butchered into pieces with me attempting to solve this issue. Regardless, outside of the three problems I'd appreciate any input. My book tasks me with creating a program for a zoo that … |
| | i have my file input like this ifstream inFile; inFile.open(fileName.c_str()); and i cin >> fileName; i want the output file name to be the input filename with .dat added to it eg if fileName was c:/tmp/test.txt i want the output to be c:/tmp/test.txt.dat anyone know how i can do this … |
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