49,765 Topics
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| | HI I have a class className which is an abstract class. I am attaching the definition in the code snipet below. when I am writing the line I am getting an error error C2259: 'className' : cannot instantiate abstract class From this error I have understood that we cannot create … |
| | I have to build a card game war in a C++ card game. The program must randomize a set of cards for both the user and a computer player. the cards are 2-14 for one array then a parrallel array for suit 0-3. then organize each hand in descending order … |
| | These are the specifications for the assignment: Write the following members functions: (a) Constructor that creates objects of the student class. (b) read that prompts the user to enter from the keyboard student name, age and gpa. To terminate reading the user should enter the EOF (ctrl-D in Unix and … |
| | Hello, I'm writing a simple calculator in C. The main problem is I need to parse string to evaluate for example 1+2*(3-1)/2.5. However writing such parses is a very hard task. This is a trivial thing Python using this code: [code] s = raw_input('Please enter expression:') try: x = eval(s) … |
| | I'm trying to create an array that can be resized, and automatically renumbered, at the moment, what I have works for up to a 3x3 array, but anything larger than that doesn't work. I've tried doing this with int instead of char for the type or the array, but then … |
| | alright. I have this file that lists about 3000 coordinates in this way. -90.0000 0.0000 220.7533 -90.0000 5.0000 220.7533 -90.0000 10.0000 220.7533 -90.0000 15.0000 220.7533 I'm trying to open this file in my program, but I'm having no luck at all. I've tried reading numerous threads on doing so, but …  |
| | Hi y'all! I'm kinda new to c++ so please excuse my inefficiencies. Anyways, here is the assignment: Write a C++ program to estimate the springtime count of deer in a park for 10 consecutive years. The population of any given year depends on the previous year's population according to the … |
| | read in MYDATA (with a space) from cin and find MYDATA in the file, print the line if its there. The line is going to be MYDATA + string. [code=c++] int main (){ fstream filename; filename.open(av[1]); string name; getline (cin, name); lookeyLookey (name, filename); } void lookeyLookey (string& name, ofstream& … |
| | Hey I have to write a program that reads a text file that contains a list of words, 1 word per line. I have to store the unique words and count the occurrences of each unique word. When the file is completely read, I have to print the words and … |
| | I'm working on a program that has a class Board, and two inherited classes that will implement different games, but I'm having problems with setting up the initial Board class. The problem is that I don't know how to make it so the board array in the protected section of … |
| | I am trying to open a file after getting its path from the user. here is the code. [CODE]#include <iostream> #include <fstream> #include <string> #include <cstring> using namespace std; void main(){ const char* filepath; string input, input2; char lines[110]; ifstream infile; cout << "Enter filename (including path): "; getline (cin, … |
| | Hay guys, I was looking at a few examples of how a Radix sort works, and writing up a document explaining it. I based my findings on one particular example I found, link follows. [URL="http://www.cubic.org/docs/radix.htm"]http://www.cubic.org/docs/radix.htm[/URL] Well the bit shifting here is giving my head a bit of a spin, and … |
| | I'm currently working on implementing a small game in C++, but when trying to compile, I get this error: [CODE]..quadtree.h:125: error: no matching function for call to 'Fleet::Ship::overlaps(const Fleet::Ship*&)' ..ship.h:40: note: candidates are: bool Ship::overlaps(const Rectangle&) const ..ship.h:85: note: bool Ship::overlaps(const Ship&) const ..ship.h:32: note: bool Ship::overlaps(const Point&) const[/CODE] So … |
| | This question is for all the programmers. What makes a good prgoammers? What made you get a job? Why are you a programmer? This is not a interview, or nothing like that. This is just someone that is curious about those question. Thank you for answer or even viewing this …  |
| | i have a training application which incorporates c/c++ and raima database(a database system written in c) i was able to insert some data in it but i cant read from it. the files are as follows: Books.cpp : [CODE]#include "Booksh.h" #include <iostream> #include <string> using namespace std; info bookrec; Books::Books(void) … |
| | Can someone help me with the follow: How would you implement mergesort without using recursion? |
| | i am using a c library from c++ application and i need to fill a c struct from c++ code, this is a c++ console application. it doesnt seem to work when i assign variable values using cin. what should i do ? |
| | hi. i am looking to run the following queries from the project zipped with this message: 1. List all lecturers in alphabetic order by surname within a selected department. 2. List all lecturers within a selected faculty. 3. List all modules taught by a selected lecturer. i am having trouble … |
| | hello,i am new in the forum i want from any member in this forum solution this equation (in the insertion any equation for example this (sum=sum+5;) this equation not enduring ) shown in the screen or to be product: sum identifier = operator sum identifier + operator 5 number ; …  |
| | hi....i'm trying to write a code that generate random numbers quickly because i'll iterate my code a lot of times.....millions of times.... I use srand(time(NULL)) to initialize the seed, and random(RAND_MAX) to generate the random number, but this form is annormally slow I need help to reduce the time of … |
| | The following function mixes call by reference and call by value parameters. [ICODE]void T ( int & a, int b ) { int c = a - 1; a = c + b; b = a + 2; }[/ICODE] Suppose that in main we had the following: [ICODE]int apple = … |
| | Hey, I'm somewhat new to programming in c++ and I have had this code I wrote for a long time now. I wrote this about 9 months ago when I was really interested in learning the c++ language but lost interest during the summer. Well, now I'm getting back into … |
| | Hi, I'v written this code for an Assignment however I was wondering if anybody had any suggestions on how to change the loops from IF/ELSE statements to Do/While, if that would be possible just the rest of the guys in my class are doing it this way with IF and …  |
| | error: cannot converst 'std::vector<int, std::allocator<int> >' to 'std::vector<int, std::allocator<int> >*' for argument '1' to 'void(...)' Well, he cannot convert a vector to a pointer to itself, as it is passed to the void function, where I wish to manipulate it.... I wish to operate on a vector containing about 20. … |
| | If there are two arrays arr1[]={1,4,5,6} arr2[]={1,5} I want to get the output as arr[]={4,6} i.e i have to remove all the common elements that arr1 and arr2 have and printing the required output . Can any one give me the program in C++ for this with normal looping techniques? |
| | Can any one slove this question? It is really hard. [url]http://img168.imagehshack.us/img168/7080/task3vn7.png[/url] I don't know how to write it in c++ but i have write up the programing logic that should work for this question.  |
| | Hey i need help with the final assignment of my Microsoft Visual C++ class and its a hard one its an online address book where it keeps a bunch of information such as name id birthday and etc. i know it looks messy but if you copy paste into the … |
| | Hello Friends, I am trying to porting some pre-existing code to VC++ 2005 in Win XP environment. I have a segment of code like, [code] ... #include<fcntl.h> #include <sys/types.h> #include <sys/stat.h> ... ... cm_iFile = open(l_chBuff,O_RDONLY|O_BINARY); ... [/code] During compiling this file I am getting the following error message, [B]..\source\CRaterEDRFile.cpp(276) … |
| | The program is all working now, but I'm worried because on the last linked lists assignment I got a C because I did not do the link correctly. My prof said that I did not create the links up correctly just used a stack to get descending in the last … |
| | 26. What is printed in the following code segment? [ICODE] I = 1; do { I = I + 25; } while ( I > 50 ); cout << I + 50; [/ICODE] a) 50 b) 51 c) 75 d) 76 |
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