49,761 Topics
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 | Hi.. Suppose I have a multimap like below [CODE] multimap<string, int> m; m.insert(pair<string, int>("a", 1)); m.insert(pair<string, int>("c", 20)); m.insert(pair<string, int>("b", 3)); m.insert(pair<string, int>("b", 4)); m.insert(pair<string, int>("a", 5)); m.insert(pair<string, int>("b", 6)); [/CODE] I want to print a output flags for first element, middle element and last element for multi map. Like … |
| | I currently am using the optimized scaler 32-bit md4 and md5 implementations from here: [URL="http://freerainbowtables.com/phpBB3/viewtopic.php?p=8454#p8454"]http://freerainbowtables.com/phpBB3/viewtopic.php?p=8454#p8454[/URL]. I am get ~8.1million hashes/second for md4, ~6.6million for md5. I am looking for a sse2-accelerated implementation for core 2, primarily md5 - which is easy to implement and at the very least twice as … |
| | Hi, Im new to c++ and Im struggling with something. I have a load of classes that all connect to each other. I globally overloaded the << operator for each class. So in my main I do the following: [CODE] FixedSizeMatrix y(5,5); cout<<y; cout<<y; [/CODE] The first cout works fine … |
| | hi friends, recently I came o know about internet bots.Can someone help me in creating a simple web BOT for tasks like automatically signing in into my gmail account,sending a particular email to all my frnds,then in orkut checking for any visitors and giving the list to me in a … |
| | I'm stuck on the very last part of a problem. [I] You've bought a square plot of land on ebay and you now want to plan how to develop this land. The trouble is, you've never been there. All you have is the engineer's terrain report which is an NxN … |
| | Hello to all, i have coded an observer pattern [CODE] class IObserver; class ISubject { public: public: ISubject(); virtual ~ISubject(); virtual void RegisterObserver(IObserver*) = 0; // Observer only interest in certain aspect virtual void RegisterObserver(IObserver*, bool) = 0; virtual void UnRegisterObserver(const IObserver*) = 0; // An Observer with 1 subject … |
| | I have an idea for a gui application: 1) the user can enter the error they are getting &/or the programming language & the program will search a database for the error & display code, reasons for it 2) the user can enter something like "class" & "c++" into the … |
| | Hi all, im doing an assignment for school and have bumped into this error that I been working at the past 4 hours without success first of all a little background knowledge, there are two classes in this , Record and Database and i'll include the private datas here template …  |
 | Please i need a free good c++ book. Please i need help! i have read john smiley's book and i admit it is a good book but it does not have all i need a book that has all thanx |
| | [CODE]int found=false; int first=0; int last= arraysize-1; int count2=0; while(first<=last && found==false) { int loc=(first+last)/2; if(key<sorted_array[loc]) last=loc-1; else { if(key>sorted_array[loc]) first=loc+1; else if(key==sorted_array[loc]) { first=loc+1; count2++; } else found=true; } } cout<<"the number of students with this grade are: "<<count2<<endl;[/CODE] I have already sorted an array of size 100 so …  |
| | I am new to this and maybe I'm missing the boat. I want to learn how to write a program that accepts data and adds it to a file, I also want to be able to sort that data, edit that data etc. This seems like the most basic thing … |
| | When I run the code, it works till the part where it asks about the dog's bredd, I press enter and it asks me about the dog's name, that's not supposed to appear. And also, when I enter the weight and press enter nothing happen, it's supposed to give me … |
| | Hey guys. I need help on how to find the largest/smallest position in a set of vectors. Because I'm using vector<bool> type.. the elements in my vector are either 0's or 1's.. therefore what I need to do: 1. find out what position they are at (all the 1 values) … |
| | I have an assignment where I enter a maximum of 100 values. I need to be able to cancel the input when I want. [code=cpp] #include <iostream> #include <iomanip> #include <stdlib.h> using namespace std; void main() { const int value=100; double middle, highest, lowest, sum = 0; double counter[value + …  |
| | I've created a class, Category. [CODE=cpp]#ifndef CATEGORY_H_INCLUDED #define CATEGORY_H_INCLUDED #include <string> using std::string; enum Type {Integer, Double, Bool, String, Date, Time}; class Category { public: Category() : itsType(String) {} Category(Type type) : itsType(type) {} Category(string name) : itsName(name) {} Category(Type type, string name) : itsName(name), itsType(type) {} ~Category() {} void … |
| | I have finished all the functions except one. I need help with writing a boolean function to determine if the magic square is a magic square. I don't completely understand boolean functions so any help would be appreciated. Thank you[code]#include<iostream> using namespace std; #include<fstream> //load the array void load2D(int &n, … |
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| | I want to find the product of two matrix using a function without using for loop? Help is really appreciated. |
 | Would this do any damage if I left it running for a while: [code=c++] int main(){ while(1) new char[0]; } [/code] |
| | [code=c++] #include "stdafx.h" #include <time.h> #include <stdlib.h> #include <iomanip> #include <iostream> #include <string> #include <fstream> #include <cmath> #include <stdio.h> #include <cstdlib> #include <sstream> #include <vector> using namespace std; int main(); class Hangman { public: void set_values (string, string, string, string, string, string, string, string, string, string, string, string, string, string); …  |
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| | I'm trying to remove memory leaks from my program, but I am new at this so I'm not sure how to do so on the follow code of mine. I think that I need to free insertedNode but I'm not sure how: [code] BSTNode * BST::Insert(const std::string & v, BSTNode … |
| | I'm trying to finish this assignment, but I got this error. "subscripted value is neither array nor pointer" Here are parts of the code. [CODE] typedef enum { BOAT = 178, SEA = 250} Appearance; typedef struct { Appearance appear; } Square; typedef struct { Square ** grid; int size; … |
 | Hi Daniweb Community :), I'm working on an SDL/C++ project, using the VC++ IDE. There is too much code to put it on here, but I'll give you an outline: The program works, but there is one thing that doesn't. The resulting .exe file shuts down immediately when it is … |
| | I was trying to implement a queue using linked list and the problem is when i try to call dequeue() method, nothing shows up and no errors too. just NULL values for all nodes. take a look @ this code and tell me if there is anything wrong... ps. Do … |
| | So im just trying to understand a simple program in C++ but i keep getting an error when trying to compile this code. The error is [Linker error] undefined reference to `Player::getHeight()' . So i have my main code in one file called Main.cpp: [CODE]#include "Player.h" int main() { Player …  |
| | Hello, and thank you for taking the time to help me out! I am working on my first real C++ program, and have the code almost entirely written. The assignment is to write four files, CPU.h, CPU.cpp, Computer.h, and Computer.cpp, which maintain information about an object (a computer), and then … |
| | Hi, I am currently having problems in my upperCase function. For 20 words out of 50 in my input file, I want to capitalize the first letter. Can someone please help me with this and lead me to the right direction. I have been trying for hours to figure it … |
| | Hello. I need some help with my program wich shoulc calculate letters in a sentence and then print out the longest, shortest, how many words, and what's the avrage value. Thanks for some help. :) [CODE]#include <iostream> #include <string> using namespace std; int main() { int word; int n; string … |
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