51,593 Topics
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| | I'm trying to sort an array of numbers in ascending order and don't know whats wrong with my code (I'm completely new to vectors). I should first copy the input array (data) into an STL vector, then apply STL’s sorting algorithm to the vector, and finally copy the vector back … |
| | Hi can u help me to listing number of file systems that have sizes between 1k to 10k and 10k to 100k ... in c++? I need it soon Thanks alot |
| | Hello all, Lots of code here, but much of it can be ignored. I am getting an error on line 34 of HashTable.h, stemming from line 50 of main.cpp. I am trying to create an array of lists in the HashTable.h file. Error code is: \HashTable.h(34) : error C2440: '=' … |
| | I'm trying to determine if this creates an array of pointers, with the array size being "size"? Is this correct? [CODE] int size = x; int *ptr; ptr = new int [size]; [/CODE] |
| | Studying modern c++ design, looks like Typelist is a very important tool for generic programming. Could I find something like Typelist from boost? I found something like boost::mpl but I didn't see anything like Nulltype defined in loki Could boost::mpl replace the Typelist of loki? Thanks  |
| | I don't my deduction of NoDuplicates are correct or not please correct my error if I did [code] template<typename TList> struct NoDuplicates; template<> struct NoDuplicates<NullType> { typedef NullType Result; }; template<typename Head, typename Tail> struct NoDuplicates<Typelist<Head, Tail> > { //private : typedef typename NoDuplicates<Tail>::Result L1; typedef typename Erase<L1, Head>::Result L2; … |
 | Hello (Dunno if this is the right forum) But basically, I've been given some text to decrypt. I've got to do it using frequency analysis. Here's what I've done: 1. Got a frequency analysis of the text: Showing how many times a letter appears. 2. Got a frequency analysis of … |
| | i have follwoing code in c++ .i want to continue it till suer give input as 'Y' or 'y' [CODE]// my first program in C++ #include <iostream> #include <stdlib.h> #include <conio.h> #include <stdio.h> //#inlcude <iostream> #include <stdlib.h> #include <conio.h> #include <ctime> using namespace std; void Evaluatexp(char ch[]); //void Evaluatexp(string ch); … |
| | I have a Login validation problem, when Username = 123-incorrect Password = 123-incorrect Login Failed. when Username = onat12-correct Password = sambuca888-correct Login Accepted. now when, Username = onat12-correct Password = 123-incorrect Login Failed. now when, Username = 123-incorrect Password = 123-incorrect Will not validate Verification failed [CODE]using System; using …  |
| | I have function which I have created a DLL for. I'm trying to call this function from a C++ program using some code I found online. I know the code works fine when the function in the DLL uses the convention call [ICODE]__stdcall[/ICODE], however, I don't want to use this … |
| | Hello, I need to take a four digit integer and re-arrange it as follows... pre: 1234 post: 3412 I have been searching for a method to convert a char array to an int, so I can use the code below. Am I using atoi() incorrectly? The result I get when … |
| | I've been Programming in C++ for a year. I am done with Basics and all other OOP concepts(like inheritance,polymorphism and STL) I want to be a game programmer, but i don't know what to study now? I've heard about OpenGL, DirectX, GUI libraries as a result i m confused to …  |
| | Hello, I have an array and need to sort it so that the highest numbers show first etc.. I have written this: [code] for(int i=0; (i < 26); i++) { while(counter[i] < counter[i + 1]) { int temp = counter[i]; counter[i + 1] = temp; counter[i] = counter[i + 1]; … |
| | Hey.. Is it possible to make PHP type arrays? Like keys? For example, I have an array of numbers, and an array of letters.. A = 10 B = 20 C = 30 And then I sort the numbers so that the highest number is at the top etc.. But, … |
| | Can any one help me put my pointer by gotoxy function inside the matrix that,s like as below: [CODE]void gotoxy( short x, short y ) // function to handle position of cursor on the screen { HANDLE hStdout = GetStdHandle(STD_OUTPUT_HANDLE); COORD position = { x, y }; SetConsoleCursorPosition( hStdout, position … |
 | hi; I'm trying to program a circular link list with a head node , I have a problem with insert function . wanting to do it like this but with a head node >> [url]http://geeksforgeeks.org/wp-content/uploads/cll1.gif[/url] this is my function :: [CODE] struct node{ int data; node *next; node(int x,node *n=NULL){ … |
| | The names are in a txt. file and are categorized as 1. malename femalename. One being the number symbolizing their popularity in 2004. What I've been attempting to program is a program that will read a requested baby name from the user. Scan through all the baby names using an … |
| | Hello everyone, my assignment is to calculate each student's test average and final letter grade from a class of 20 students with 3 tests. The scores for each test are located in the text files that I am attaching. I have worked on this code for some time now, but … |
| | I'm currently working on a project similar to that of text twist. I have a dictionary txt file which I stored into an array. I then have user input a guess, then compare the guess to the dictionary array using a for loop. Somewhere along the lines of this: [CODE]string … |
| | This is my whole program and what I am trying to do. Nothing is being outputted through the functions though. When I output the array in the client code it prints correctly but not through the recursive function. So I am wondering what I am doing incorrectly? Input is like … |
 | Hi, I wish to start making Windows Applications, but I need a good compiler. Considering I work in DEVC++, I can't make buttons, textboxes and other objects that easy. I wonder if there's any compiler like BorlandBuilder for C, but for C++. That'd really help me :icon_cool: So do you … |
| | The void and Output file will not work for my code and I don't know why. [CODE]#include <iostream> #include <string> #include <istream> #include <fstream> #include <cstdlib> #include<iomanip> using namespace std; #define MAX_ENTRIES 50 struct internet { string internetDomain; string ipNumber; int counter; }; // declare the array of structs - … |
 | Hi everyone.I'm trying to compile a resource file ".rc" for a Win32 application but i'm getting this error "use "" to put " in a string".Among other things , i'm trying to define a MENUITEM with a string that looks like this "&Save\t\"Alt+S\"".i have tried escaping the '"' character with … |
| | I have created a new C++ project (to be able to use the graphics.h library) then I have tried to add a C project which works perfectly in C (by the way I have saved the file with .c extension). 2 line leads to error: [CODE] q = malloc(sizeof(struct QueueRecord)); … |
| | How could we measured the relationship between types and binary files generated by compilers? [code] template<typename T> T Max(T const A, T const B) { return A > B ? A : B; } void testMax() { int a = 5, b = 10; double c = 44.4, d = … |
| | hi i am a newbie at c++.. this is code of game am wondering why the text is blinking ? [CODE]/ /* Include section */ #define WIN32_LEAN_AND_MEAN #include <iostream> #include <windows.h> #include <cstdlib> #include <time.h> /* Using Statements*/ using std::cout; using std::endl; /* Constants */ #define X 20 #define Y … |
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 | [CODE] USHORT * pInt = new USHORT; *pInt = 10; std::cout << "*pInt: " << *pInt << endl; long * pLong = new long; *pLong = 90000; std::cout << "*pLong: " << *pLong << endl; *pInt = 20; std::cout << "*pInt: " << *pInt << endl; delete pInt; *pInt = …  |
| | [COLOR="Red"]hello.... I'm new member and I'm so happy that i found daniweb.com to get some help from you my friends.... i need help in solving this problem...[/COLOR] •Select one program of your choice that implements Single or Double Linked List in C++. Make sure you use class in your program, …  |
| | I tried to run this program and it runs.But when I go and open the file account.txt it says character encoding problem.it is created but doesn't open.help please! thank you in advance. [CODE][/CODE]  |
| | compiler : visual c++ 2010 os : win7 64bits [CODE] std::string temp = "temp"; boost::tuple<std::string> A( std::move(temp) ); //this is copy std::tuple<std::string> A( std::move(temp) ); //better, woundn't compile [/CODE] this is inconvenient when I want to do something like this [code] std::tuple<std::string> kkk() { std::string temp = "temp"; return std::make_tuple( … |
| | [CODE]#include<iostream> using namespace std; int main() { int x, s, g,; int m[10]; cout<<"Input 10 numbers: "<<endl; cout<<"number: "; for(s=0; s<10; s++) { cin >>g; m[s]=g; } cout<<"\n"; int max, max2; max=max2=0; for(int i=0; i<10; i++) { if(m[i]>max) { max2=max; max=m[i]; } if(m[i]>max2 && m[i]<max) { max2=m[i]; } } int … |
| | [CODE] vector<int> iv; iv.push_back(4); vector<int>::iterator it = iv.begin(); cout << *it; cout << *(iv.begin()); //debug assertion here [/CODE] Why can't I dereference iv.begin() directly? |
| | I have an assigment that i cant solve it , can any one help ? Here is it : .................... Write a C++ program that calculates the interest for a customer’s money at a bank account. If the customer deposit is 6000 JD or less, the bank gives an interest … |
| | Hey all. I'll make this quick. I want to search for a pattern and replace it with an empty string using the boost/curl libraries OR strictly c++.. No DotNet. The below code I have, removes HTML Tags from a file/string: [CODE] static string StripTags(string source) { int iSize = (int)source.length(); … |
| | I need help. I tried to load an image using SOIL. I was having problems with it so I found another code I am using. However, it looks like I am not loading it properly. It's simple but I think I'm confusing myself. I still can't wrap my head around … |
| | Guys, I've got an issue but I also dont know if its possible. I've templated (generic'd out a class that takes type T where T is a HtmlControl object ... [code] internal class Controller<T> where T : HtmlControl { public T locateControl(T t) { t.SearchProperties.Clear(); t.Find(); return t; } } …  |
 | Hi I think im doing fairly good on this program but for some reason its giving me an error on line 27 this program is supposed to compute two statistical values for an array of 500 integers ranging in value from 0 to 2000 what am i doing wrong? [CODE] … |
| | Can someone interpret this code for me? I dont understand whats going on. This code is supposed to take a number n that is inputted and show all the numbers below n that are frugal. A little background, a frugal number is a number where the amount of the digits … |
| | as you can see in the picture this happens the second i add to that kamapatchi class 1 more integer. [CODE]#pragma once #include "Configuration.h" class Kamapatchi{ public: Kamapatchi(); Kamapatchi(Point ); Kamapatchi(int,int); int getAge(); bool isAlive(); void drawSprite(char world[][BOARD_SIZE]); void eraseSprite(char world[][BOARD_SIZE]); void act(char world[][BOARD_SIZE]); void updateStatus(); string getStatusString(); string getSpecificMenu(); …  |
| | Hi, I've got stock market data in a structure as follows. [CODE]struct PriceInfo { double Open; double High; double Low; double Close; unsigned int Volume; unsigned int Time; std::string Date; };[/CODE] My program imports the data from a csv file and stores it in memory etc. The date and time … |
| | im a new student to c++ and classes has really confused me. the program is creating a bank account. i have already completed the header file but the implementation file has be confused. can someone please help me with this. thanks! here is my header file: #include <iostream> using namespace … |
 | can anyone tell me particular code that work opposite way for "sort", where.... [QUOTE] sort(b, e) Rearranges the elements defined by the range [b, e) into nondecreasing order. Defined in <algorithm>. [/QUOTE] from Accelerated C++ |
| | Hello all, I am working on an assignment for my OOP1 class that requires reading a .DAT file, performing a bubble sort according to user input using the keyboard and then writing the sorted data to an output.DAT file. I am able to get my program to compile with no … |
| | Hi, I've been trying to write a converter that converts several units. I want it to be able to prompt the user to retype an input if they type an invalid input... I'm struggling with this part. This is what I have so far. [ICODE] #include <iostream> #include <iomanip> #include … |
| | Hi everyone! I know there have been quite a few threads on this topic but I'm having a lot of trouble with one piece of code. Basically, I have an input file with three columns and 500+ rows. I want to find the average of each column, and then subtract … |
| | Hello everyone! I want to add a licence expiration feature in my application (written in visual c++). When the licence expires i would like my application to generate a random numerical key which will be sent to me by the user. Using this key and a personal key-generator i would … |
| | Hi, How do we read and write a byte array to a XML file in C++. |
 | i don't know why but my compiler reads only upto insert statement. this is what compiler looks like: [B]nchy@ubuntu:~/Desktop$ g++ tree.cpp nchy@ubuntu:~/Desktop$ ./a.out 2 insert 0 14 10 85 15 70 20 60 30 50 65 80 90 40 5 55[/B] [COLOR="Red"]i want to implement following input format[/COLOR] 2 insert … |
| | I have a homework assignment where I'm supposed to use pass by references. I'm reading my text and don't really get it. The assignment is to create a program that converts Fahrenheit to Celsius and vise versa. It's also supposed to contain a print function that will output the results … |
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