51,593 Topics
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| | I am trying my first encryption program and I want to convert the letters to numbers then do an equation to change the numbers. Then when the encryption is done it should be a bunch of random numbers then the decryption should come back to normal (what the user input … |
| | what is ment by merging a linked list do we need to sort the list after connecting the lists? please anybody help .....  |
| | Hello, I was trying to work a problem from the book and decided to compile and run sample code that is already supposed to work. The problem is it doesn't. The concept of breaking these files up is new to me. Can someone please let me know what to do? … |
| | Hi, I'm working in a 4x4 sudoku solver and i'm a beginner in c++. I use Microsoft Visual Studio 6.0 and windows xp professional Variables are: a1 b1 c1 d1 a2 b2 c2 d2 a3 b3 c3 d3 a4 b4 c4 d4 First i wrote that program [CODE] //sudoku.cpp: #include<stdlib.h> … |
| | Hey guys ----------------- Truck t; Car c; Vehicle *broom = &c; broom->drive(); broom = &t; broom->drive(); ----------------- by saying Vehicle *broom = &c; what do you actually do ? what it means? *broom is a pointer located on c's adress in memory ? Is that right? thanks  |
| | I need to know how (if even possible) to return a substring without having to return a local variable or space allocated by new here's some code as an example as to what I'm looking for. [code] char* substr(const char* str, int start, int len) { char retSub[len+1]; int pos=start; …  |
| | hello, I am following a book and im stuck on this one.....(note it's tacky but just bear with me, im a newb)[CODE] #include <iostream.h> int main() { int RedSoxScore, YankeesScore; cout<<"Enter the score for the RedSox:"; cin>> RedSoxScore; cout<<"Enter the score for the yankees:"; cin>> YankeesScore; cout<<"\n"; if (RedSoxScore > …  |
| | hello i am george.i have to do 2 exercises in c/c++ and i dont know a lot of programming.the exercises are: 1) code for depth first search with adjacency list for every graph 2)code for Dijkstra algorithm with weight graph if somebody knows something(code,links,etc...) that could help me please contact … |
| | Hey guys gotta quick question for ya. I'm trying to figure out the best way to write an array for the following: (1) Hot dog 1.50 (2) Fries 1.00 (3) Lemonade .75 (4) End order You should be allowed to keep ordering from the menu until you press 4 for …  |
| | Dear Members I have started the following program, and I do not know how to solve the issue to store names in an array and retrieve them again, and how tos tore the names in a file in the Hard drive. If somebody could help me with my issue. Thanks … |
| | Hi all, I want to find the number of words in a rich edit control. There is no direct class member to do this. So I think if I can count the number of word break and line brake then it is easy. But it is also not easy. On …  |
| | hi all, I am using ORCA to validate the product key in C# 2005 windows application. i am using the following C++ code in a dll to be added to the MSI for validation. [code] UINT __stdcall ValidateSerial(MSIHANDLE hInstall) { TCHAR szPidKey[PIDKEY_LENGTH]; DWORD dwLen = sizeof(szPidKey) / sizeof(szPidKey[0]); ///retrieve the … |
| | After writing out the main functionality for my templatized data structure, I am stumbling with the syntax to allow for Compare (so the user can provide a definition for less). If I am not mistaken, I need to add at least another constructor. I tried reading the STL implementations for … |
 | If I have a const char * of "bad,cold,new" how can I count just the number of commas? Do I need to convert it to string? If so, how do I do that? Do I need to convert all the commas to zeros first? How do i do that? |
 | Introduction: I already tried to post this on the dev-c++ - forum at sourceforge, but didn't check for the far too low frequency at that forum (about two questions per week). Thus i tried t find a better visited one and found this here. I use: Dev-C++ 4.9.9.2 Windows XP/SP2 … |
| | hi may I bother you a moment :icon_redface: the follow program is without compilation error but whin I running , load error appear can you help me what is the error :( :( [CODE]#include <iostream> #include <string> using namespace std; bool function () { int ascii; string s1= "word" ; … |
| | I'm stuck because I recieve these errors when I try to compile - pim.cpp: In method `void PIM::search(class basic_string<char,string_char_traits<char>,__default_alloc_template<false,0> >)': pim.cpp:101: member `firstname' is a private member of class `Person' pim.cpp:101: member `lastname' is a private member of class `Person' pim.cpp:105: no matching function for call to `PIM::print (Person &)' …  |
| | the questions is the following: Write a program that prints a table of the binary, octal and hexadecimal equivalents of the decimal numbers in a particular range the program should be somthing similar to the follow: 1. Convert a Decimal Number to Binary Number 2. Convert a Decimal Number to …  |
| | #define ID_FILE_EXIT 40001 #define ID_FILE_OPEN 40002 And all other things like this which have these number .Which number i can use for my own ID 's ? And where i can find all of this? I try a MSND but it took me too much time so i ...? |
| | [code=c++] // Stopping input with an empty string #include <iostream> using namespace std; #include <cstring> int main() { int i = 1; char temp[80]; char string[80]; // room for 255 strings cout << "\n\nEnter some strings - (blank to exit)" << " \nfirst string: "; cin.getline(temp, 80); while (temp[0] != … |
| | Hello, so I'm a student in college and I'm new with C++ and I'm trying to make this program that allows me to read in names from a file, first name then last name, in Cstrings. Then I have to change it so that the output is "lastname, firstname". There … |
| | Hi, I am storing strings in '|' delimited format in a text file. Each new line represents a new record. for instance [CODE]|Name|Age|Favcolour| |Name2|Age2|Favcolour2|[/CODE] I'm using a string vector to hold the tokens as they're pulled from the ifstream, However if one of the fields has not been filled in … |
| | I am looking to make a small program that will cut down the repetetive need to insert BB tags in to achievements lists on a site I work for. So far I have got the algorithm sucessfully reading the first line of the file, and outputting it using cout. The … |
| | modularize program code by using functions. You will produce two solutions: a) using global access functions, and b) using classes and member functions. a) Using Access Functions Write five Invoice access functions: setInvoice(), computeAmount(), getAmount(), printData() and a global client function computeAmount(). Function setInvoice() has five parameters of types Invoice, …  |
| | i want to calculate the exact run time of my program in [B]seconds[/B]....i used [B]clock() function of time.h library...[/B] what i did is that i made two [B]clock_t [/B]type objects... initialized one of them in the start of main() function and the other in the end.. and calculated the difference..as … |
| | Hello folks! I have just joined this forum. This is actually my first Thread on the internet and need help with using STL sort function. I searched the forum but no related answer was found. Okay...here's my code; [CODE] #include<iostream> #include<vector> #include<algorithm> using namespace std; struct MyStruct{ int array[10]; }; … |
| | Hi.. I m working on Windows-Xp and building my project on Dev-cpp. The program compiles properly and i have also included the required dll file in the same folder of exe but when while running this application from command prompt it gives me following error message :- "[B]This application has … |
| | I'm clueless as to how to fix the errors in this contact information manager program. please help. Thanks in advanced [code=cplusplus] #include <iostream> #include <string> #include <fstream> using namespace std; struct Date { int month, day, year; }; struct Address { string street, city, state, zipcode; }; class Person { …  |
| | [B]How can I load an image to my code so i can make it as a background or I apply any function on it like rotate and scale only what I need is the function to load a(.jpeg or .bmp) and where to put it in my code[/B] #include "stdafx.h" … |
| | hello there, i have been having some problems with dev c++. It just cant seem to compile my code. It says source file not compiled when i try to run the "compiled" program. Its like this;- i write my code (simple code stil beginner lol) and i go compile it … |
| | Hi to all, Function Information Minimum DLL Version user32.dll Header Declared in Winuser.h, include Windows.h Import library User32.lib Minimum operating systems Windows 95, Windows NT 3.1 How to use user32.dll in Dev-C++? Where to find User32.lib ? I tryed in C:\windows\and Dev-C++. Where is the diffrence in Header betwen Declared … |
| | [CODE] // War Game made by Jeremy Wayman #include <iostream> #include <cstdlib> #include <ctime> #include <fstream> #include <string> using namespace std; int cardValue[13] = {1,2,3,4,5,6,7,8,9,10,11,12,13}; // Declaring first array string cardType[4]; // Declaring second array ifstream inFile; // Declaring a reading inFile void displayRules(); // Declaring function displayRules bool winner(int … |
| | In my program I am using the do-while loop to go through program.. my question is how do I loop the program without the do-while loop... rather that when the user enters menu number 0, it quits the program... Teacher uses a script to grade the programs and on hsi …  |
 | I'm trying to get the program to loop back to the friends array and re-compare the two user inputs again and keep doing it until the 2nd input is the same as the first. We haven't covered this yet in my class but could someone help me to find this … |
| | ok, so I have been working all day on this program and I am kinda stuck. The goal is to have a user input several words, then (ignoring case) alphabetize them (using [ICODE]qsort()[/ICODE] only) and count how many times each word was used. This is what I've got so far: … |
| | Can anyone help me how to write the following codes in different ways. I used Linked List. template<class Item> ttt<Item>::ttt() { square=0; board=new node<Item>; for (Item i='9'; i>=1; i--) { list_head_insert(board,i); } } template<class Item> void ttt<Item>::clear() { list_clear(board); square=0; board=new node<Item>; for (Item i='9'; i !='0'; i--) { list_head_insert(board,i); … |
| | I am looking at the code which has the following: read(conf_fd,conf,100); Can someone tell me what these parameters are passed to read function? |
| | Hello there :) I have recently started learning lists in C++, and I just do not understand what is the advantage of lists over arrays? I only see disadvantages, like: they're harder to implement, harder to manage, a little bit confusing, and so on... So, i know i'm a n00b …  |
| | I need to create a program and have it create a lock file so that only one instance of the program can be run at any one time. I came across this code: [CODE=c] for (tries = 0; tries != maxtries; ++tries) { fd = open("/tmp/some.lock.file", O_WRONLY|O_CREAT|O_EXCL, 0644); if (fd … |
| | Given main: [CODE] #include <iostream> using namespace std; #include <stdlib.h> #include "minivector.h" #include "bubbleSort.h" #include "Fraction.h" int main() { int arr[]={99, 12, 50, 80, 1, 79, 20}; cout << endl << "bubbleSort ints" << endl; bubbleSort(arr, 7); for (int i=0; i < 7; i++) cout << arr[i]<< endl; double arr2[]={99.2, … |
| | hello every one this is first time in this forum and very first post. I am really interested in learning c++. I am mac user and before i start learning c++ could anyone Please tell me if i need different version of c++ complier or i will be fine with …  |
| | hey i guess anyone here cud be able to help me....... i wanna start learning C++ n i dont know where to get a decent C++ compiler..... i have tried "Borland C++ 4.5" n i dont know why it shows wierd errors to me...... one of my friend who knows … |
| | i have created a program that write protects USB devices, but can this be done for firewire?? i know there are no settings in the registry like they are for the USB write protection. Has anyone any ideas how i could achieve this? thanks |
| | Hi I need help with a project im working on im wondering if there is a way to include a file in a program. Im making a prank program that hides in the background and plays a funny wav file. Is there a way to include the wav file in … |
| | Hi, Firstly, this is Win32 console related, otherwise I'd be reading up on the ncurses library.. My program is updating name:value pairs like [B]Name:John[/B] I wish to use WriteConsoleInput to inject the current value into the inputstream so that the user can edit the characters rather than start again. this … |
 | i got a new laptop, and when i try to run dev-c++ nothing happens and i am forced to shut the .exe down using task manager. I've tried running it under administrator but nothing seems to help. It installs fine but when i try running it it crashes. If anyone … |
| | Hi to all I have a little(big) problem of knowledge how to use Resource File. I thought when i open a Dev-C++->File->New->Resource File. The files who have extension on .rc . Can you give me any script about that? So if you willing to help me plz respond. Thank you … |
| | Hi to all. I have no experience with project. [url]http://img98.imageshack.us/my.php?image=problemzc7.jpg[/url] How to connect these files in Dev-C++? |
| | Hi.. i wanted to make a project for my 12th boards and i chose the topic "Parking Lot Administration". I had started writing all the functions and everything.. but i needed it in BINARY FILE.. n i dont know how to do it.. MY ROUGH CODING IS GIVEN BELOW : … |
| | Hi Friends, I was developing a function for making entries to log files in c++ My function looks like this: [code] void makeLog(int log_level,char *arg,...) { char temp_str[512]={0,}; va_list ap; va_start(ap,arg); vsprintf(temp_str,arg,ap); .. .. } [/code] this function works well most of the time, but some time it generates a … |
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