49,757 Topics
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| | I need to run simple tests on a Linux cluster fro parallel programing. I have used only C++ before, but this Compositional C++ is not that good idea as I thought at first. I have read that there is also MPI libraries and High performance Fortran, but I have no … |
| | Hi, What is the dynamic array equivalent to this? int *array[10] --- int *array array = new int[10] I want something like the above, but I can't seem to figure out the correct way to do it Any help would be appreciated! Thanks! |
| | Hey guys. I'm just trying out something with the fstream library. In the next code, I'm trying to read from the beginning of the array (num1) and from the end of the array (num2) the file I have as an "entry" called "entrada.txt", which has the numbers 1 up to …  |
| | This is strstr() function made by me as given in the practice problem. [code=c++] char *cstrstr(char s[],char ss[]) { int l1,l2,i,j,k,flag=0; char *p=NULL; l1=strlen(s); l2=strlen(ss); for(i=0;i<l1;i++) { //cout<<"i:"<<i; p=&s[i]; if(ss[0]==s[i]) { for(k=i,j=0;j<l2;j++,k++) { //cout<<"j:"<<j<<"k:"<<k; if(ss[j]==s[k]) { flag=1; continue; } else { flag=0; break; } } } if(flag) return p; } …  |
| | actully hv some problem in creating an assigment in my college assigment is about to draw a flow chart of online shooping frist to show the avaliable online shopping things then about shopping cart and at last calculation of all the bill :( i m vry much helpless |
| | assigning the address of a variable in c++ hi all, im very new to c++ and programming, googled this but couldnt find an answer if i want a instance of a variable, i can do this int a = 10; int & b (a); so now the address of both …  |
 | my program is [ICODE] class stack { protected: int tos; int store[10]; stack() { tos = 0; } public: void push(int x); int pop(); }; void stack::push(int x) { cout<<"put the values into stack"; store[tos++] = x; } int stack::pop() { cout<<" get the values from stack "; return store[--tos]; … |
| | Hi!, i'm writing from Argentina. I need your help! I'm doing a project for the university and i have to make a Restaurant management. Well that´s not the problem. I have to log into the software, so i need to read from a file that have the user and password. … |
| | Hi, I am currently working on a homework assignment with the topic being a boggle game. We are creating the boggleboard class and one of the function that must be included is this: bool playWord (string word, string player) This method returns false if word does not appear in the … |
| | Hi im trying to make a packet filter in C++. The only point of it is to drop all packets sent and recieved, or allow all packets sent and recieved. And I need it to turn on and off by pressing F9. Can someone help me on maybe how to … |
| | This is the problem I need to solve. It comes directly out of a C++ Programming book: [QUOTE]A right triangle can have sides that are all integers. A set of three integer values for the sides of a right triangle is called a Pythagorean triple. These three sides must satisfy … |
| | how to create a dynamic string array to store string items using new ... |
| | Make a program so that the function main is merely a collection of function calls. Your program should use the following functions. a. Function openFiles: This function opens the input and out files, and sets the output of the floating point numbers to two decimal places in a fixed decimal … |
| | Its an exact change program but the output is not right. I don't know whats wrong in it. Can somebody please help me with program. #include <iostream> using namespace std; int main () { int twenties, tens, fives, singles, quarters, dimes, nickles, pennies; double purchase, pay, rempay=0; cout<< "please enter … |
 | I have been using GSL, but I find it very awkward to work with. Does anyone have a recommendation for another one to try? I can't seem to find any on google. Thanks, David |
| | [CODE] class A { int x; public: A(){} ~A() { cout<<this<<endl<<"bye"<<endl; } }; int main() { A a; a.~A();//bye return 0; // after return 0, destructor will be called and bye will be printed again } [/CODE] the destructor gets called twice. The 1st time, its explicitly called and the … |
| | what is the difference between a class declaration and a class definition ? Is it that a class which contains the prototypes of member functions is a class declaration? Is it that a class with member functions defined within the class , is a class definition ? |
| | why is the size of an empty class 1 byte ? does the compiler add some null byte ? |
| | Hye there.. I just want some ideas to make my program better.. Below is the code. Any comment or recommendation are appreciated. :) [CODE]/* * Name: Isihan dan Carian [Sorting and Searching] * version: 4.0.1 * Copyright © * Support: http://tempek.net78.net * Updates: August 27, 2008 * Compiler : Dev-C++ …  |
| | Hi, I'm using Expat to parse XML, and I have an array of attributes for an element. I need to be able to loop through them all, and get their values, I don't know the array size, and it's a multidimensional array, so I couldn't do [Code=C++] int count = … |
| | How do I sort 10 random numbers using quick sort with push() and pop() ? |
| | I'm having trouble reading from my files properly. the files being read from is in this format: Q:3 D:4 N:1 and that is all in the file, it stands for quarters, dimes, nickels. yeah and the function i have to read from that is this: [code=cplusplus] void initialize (ifstream& soda, … |
| | I'm having a little bit of trouble using the ifstream 'get' command. When I say trouble I mean it is not returning the values expected and I need a little guidance, if you will :). Basically what I'm doing is reading a file in through C++ and then going to … |
| | ight - I have the directory to my app stored in HKEY_CURRENT_USER/ Software/myAppName how do I read it? I've tried searching the RegGetValue but couldn't get it to work/ understand how it works. |
| | Hello all. I'm pretty new to C++ but not a total beginner. I have done a little program which basicly is a Timer. It's a clock that starts at zero and counts to 4min 45sec, then it playes a sound and restarts. I want to add a feature which restarts … |
| | I have been using the book beginning c++ through game programming witch has been a very good book. I've learned loops, references, pointers, classes, inheritance, dynamic memory, and the very basics. Now I need a book that will help me make programs that do things outside of the console window …  |
| | #include<iostream> using namespace std; void BubbleSort(int ar[10], int n, int & compare_costs, int & swap_costs) { int t; int swaps=-1; while(swaps) { swaps++; compare_costs++; for(int i=0; i<n-1; i++) if(ar > ar[i+1]) { t=ar; ar=ar[i+1]; ar[i+1]=t; swap_costs=swap_costs+5; } } } int main() { int n, compare_costs, swap_costs; int ar[10]; int *bs … |
 | Hello, Now, this may sound stupid, as it concerns basic file I/O, but my code doesn't work correctly- at least it isn't doing what I want it to. I wanted it to write a file the first time it runs, which it does perfectly, and every time it is run … |
| | how can i access a direct (absolute, not the offset) memory address? here is what i tried: wrote a program that ask's for an address from the user, creates a FAR pointer to that adress and shows it. then the user can increment/decrement the value in that address by pressing … |
 | hello, google, daniweb, and microsoft searches didn't help me with this so i hope that someone here will know. i'm trying to have a method called at a fixed interval of time from the time an application starts until it ends ( RedrawWindow() ). i know how to do it … |
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