51,593 Topics
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| | Hello everybody, I'm having a problem with my conpiler. Below is what I typed but it is giving me Can anybody help me? 7 parse error before `float' 10 `fltMoney' undeclared (first use this function) 10 (Each undeclared identifier is reported only once for each function it appears in.) 13 … |
| | Hello guys , i recently started programming in C++ , and i am trying to create a text-based RPG in prompt console ... what my problem is that i have my main function , calling one other function name infomisc , in infomisc function it let you choose , 1. …  |
| | Hi Friends, I have a requirement like in a CPropertySheet i need add four property pages, in that first two pages should contain Wizard mode property of CPropertySheet & the next two pages should behave like a normal mode. The current problem is that if i call 'objPropertySheet.SetWizardMode()' before 'objPropertysheet.domodal()', …  |
| | Heres the code, im pretty sure i missed something really stupid, No matter what number i type i get "The number oyu type must be a positive number" so i guess the problem is either in my if statements in main or in the checkuserinput function, most likely in my … |
| | hi eveyone i need to edit person name or Appointmendescription but not date or time in my program. i can write all the records to the file and can read from the file. and need to edit the file now. can anyone help???? thanks.. [CODE] void writeAppointmenRecords( ) { int …  |
| | I have a hole host of questions about this but i don't have a clue as to how to do them ... here is one .. im hoping to see exactly how its done so that i can do the rest.. thanks Execute the following sequence of operations on an …  |
| | As part of an assignment I am creating a class to handle rationals with numerators and denominators, overloading the operators for cin and cout, as well as +-*/. So these are the functions for those operators, now where exactly should I include these in my class? [code] Rational addition(Rational a, …  |
| | Been working on this project for the past two days and tried googling for solutions and about every 5th solution led me here, so I decided to join and see if I could get my question answered. Here's what I need to do, this is a semester long project for … |
 | Bah, once again I am beat by the computer logic... Anyone have an answer as to why it gives me an error: "Expected a constant expression at msg" Here's the code, [CODE] const int INFOWND_SIZE = 4; int msg_length[] = "Message"; double calc_amount = (double)msg_length/(double)INFOWND_SIZE; int msg_amount = (int)ceil(calc_amount); char … |
| | For the most parts I believe my program is correct, when compiled it doesn't show any errors. The problem that I do have is that I cannot the information on my linked list to print. When the print out comes out it's suppose to show a list of names instead … |
| | I need an example on downloading an internet file in a windows service application before logon using c++.  |
| | hey, I want to read internet data through a C++ program. I am told that the way to do this is by using a proxy server and spitting out the data through the proxy to a file which then can be read. How exactly do you setup a proxy server … |
 | Hi pals I have three qestions 1-Is it possible to overload {} operator? 2-What is the benefit of using function objects other than functions? 3-How can i access CPU serial number and such a things? |
| | The title says it all i want to make 1 file which can store information which my C++ program can read and use. How do I go about doing this. |
| | Hello there. What is usually the reason of getting an undefined reference error? I have already included the [B]pthread.h[/B] header file yet I'm still getting the undefined reference error for the [B]pthread_create() [/B]function. *sigh*. I'm using makefile in compiling my code. Is there someone here who could enlighten me? Thanks! … |
| | Hey, im trying to delete an element of an array of pointers of a class, how can i delete just a single element? my code is basically this... n =8; ClassName *newName; newName = new ClassName[n]; how would i delete for example, element 3, while being in that element... if …  |
| | Hey I'm just starting to learn how to program and right now I am making a C++ tool with a Command line interface in Xcode 3 and this is my code. [code=cplusplus] #include <iostream> using namespace std; int main() { //declare input output variable double base=0.0; double height=0.0; double area=0.0; … |
| | Hey all. Im working on a project that manipulates Wav files such as being able to add an echo to it and so on. So far ive managed to read in the Wav, split it up into the header file and data and manipulate the data by adding an echo … |
| | My main code variable declaration (just declaration no login statement) [CODE]struct AXEMAN{ int lvl; int att; int hp;}; struct DEFENDER{ int lvl; int att; int hp;}; struct ARCHER{ int lvl; int att; int hp;}; struct SPEARMAN{ int lvl; int att; int hp;}; struct ROUGE{ int lvl; int att; int hp;}; … |
| | Assume you have a hard disk with the following specs: • Has 4 platters • Has 4096 tracks per platter surface • Has 512 sectors per track • Has 256 bytes per sector • Rotates at 8,00 rpm • Average seek time: 4 msec Write a program that roughly simulates … |
| | i am new to c++ and wonder about how i create a file for example string flight; cin>>flight; flight=flight+".txt"; ofstream myfile; myfile.open(flight); instead of having a fixed name like myfile.open("file.txt") but it doesnt work , are there elegant solutions to this problem i have. all the help is appreciated. |
| | I need to be able to get rid of spaces in a string. All strings are representations of functions: 3 * x ( 1 ) + 1 * x ( 3 ) + 6 * x ( 2 ) – 10 * X ( 0 ) and i have to … |
| | Hello In my program, the function [B]largest_prime_factor[/B] is not being called/working? Can you tell me what may be wrong? The function [B]largest_prime_factor[/B], should return the largest prime number of the variable [B]n5[/B] (n5 = n3 + n4). Plus if you see any other errors or maybe a better way of … |
| | I'm trying to store a list of names in alphabetical order, while implementing this linked list, but I've bumped into some errors. This is what I have: Node.h class node {public: node(node* , node* , node* , node* , node* , node* , node* , node* , node* , node*); … |
 | Hi, I have built a text based adventure game. The last thing I have to do (this is for an assignment), is ask the user if they want to play again. So, I thought the code below would probably be the best way to do it, seeing as I don't … |
| | Ok I need to know how to set my class to read only the values after the = sign. Here's my class so far. [CODE] #include <iostream> #include <string> #include <fstream> using namespace std; class Config { int pos; string search; public: char * confname; void configsearch () { fstream … |
| | Hi, I java, under BigInteger class, there is a function called modpow, [URL="http://java.sun.com/j2se/1.4.2/docs/api/java/math/BigInteger.html#modPow%28java.math.BigInteger,%20java.math.BigInteger%29"]http://java.sun.com/j2se/1.4.2/docs/api/java/math/BigInteger.html#modPow%28java.math.BigInteger,%20java.math.BigInteger%29[/URL] It allows us to answer things like 99999^9999 % 78 very quickly. But I am unable to find one for c++. Thanks |
| | Hi Guys, Are there any APIs or VC++ libraries which enables to read .xls files Regards amit |
| | Right now i am trying to implement a vector class. However, i can't seem to get this to compile correctly. I can declare one in my main so I know the library exists, so what is going on here? [code] #ifndef _TABLE_HASH__ #define _TABLE_HASH__ #include <vector> #include <iostream> template <typename … |
| | My teacher and i have been having a debate of sorts and this one has me stumped ( since he's actually giving me help now i'm not complaining that my brain is being picked with only one week left in the semester lol) i've never really gotten this coding thing … |
 | Hello all, I'm trying to link two files but I get error "multiple definition of `funny_words()' " I don't know what to do, as I'm new to C++. I'm reading PROGRAMMING IN C++ by P.B. Mahapatra and the topic is PREPROCESSOR. I have to learn how to Link headers, and … |
| | Hi All, I'm a C++ beginner, and I face the following problem: There's a .txt file that has some number written successively in the 15th line of the file. Each number (that could be a one or 2 digits number) is separated by a space from the preceding and succeeding … |
| | Hi guys, I have list of class contain list of another class. [code] MyMessages class { ID list <myPackets> Packets; } myPackets class { Seq Text } [/code] I need advice which one is the right way to set myMessages class?? [code] void set_myMessages(const int &ID, list <myPackets> Packets) [/code] … |
| | Hi Im writing this sorting program. A user can enter a First Name and Last name (10 for now). It stores them in a string. Then a user can enter 10 numbers. The program sorts the numbers and then displays the names assciated with the numbers in order. [code] #include … |
| | Hi, I need to read a file character by character and send it to cout at the same time. I have used get(char) but cannot lose the newline character. I'm quite new to C++ and havn't yet grasped the concept behind c-strings/strings. Code so far.. while(in.get(n)) { if (n=='\n') { … |
 | My goal is to create a program that plays Mahjong. I figured the algo would be a bit like this: [code] While there are blocks left { Fetch new board Recognize blocks //find 2 of the same images within the image. Find free blocks //not *really* necessary: computer versions don't … |
| | I'm trying to store a list of names in alphabetical order, while implementing this linked list, but I've bumped into some errors. I have my problems (like 'node' no appropriate default constructor, and 'first' undeclared identifier). This is what I have: [code] Node.h class node {public: node(node* , node* , …  |
| | I'm writing a program that simulates road traffic, I have a vector of integers inside a structure, which is itself the elements of a vector. Everything works fine except the iterator i use to delete elements of the inbedded integer vector seems to be going out bound and then when … |
| | I need to write a program that will count how many numbers within an interval have an even sum of digits. you are given two numbers, a and b. i wrote a little program that is a little slow.. it checks for the sum of the digits for every number … |
| | Hello Guys! Need some help. I basically want to align my menu to center. I have tried the following: 1 . SetConsoleCursorPosition(); 2. gotoxy(); ....etc But none what so ever works..... Here is my code menu: [code=c++] void printMenu() { void Bottomline(char *text); void Headline(char *text); void EmptyLine(); int ans; … |
| | Hello guys. I have developed a program which is supposed to read several times from the same file. I have used clear() and seekg() but nothing works. When the file gets open for the second time the program doesn't read anything from it. I would appreciate any suggestions. Here is … |
| | Dear Friends... I am new to driver development. I don't know what tool to use to develop drivers. please provide some links to find the link.. I would like to develop a minifilter to monitor and control the file system activites can anyone help me... if you know plz mail …  |
| | hi all, me again, i need to create an array within a function but somehow i'm getting errors. anyone can enlighten me? [code=cplusplus] string TravelVoucher::exchange(int i) { const int tix = 3; TravelVoucher::exchItems[tix]={"Dinner for TWO at BestFood Restaurant", "Buffet for TWO at EatTillDrop", "Ticket for TWO for Singapore Flyer", "High … |
| | i have a program, which uses a password inputation but when i made the password encrypted. when inputting my password which now appear as star(***) due to encryption. trying to delete a character but backspace is being read as a character. please can someone show me the way forward... thanks … |
| | My brain has just switched off on me... have an easy program to write for a C++ class that involves a for loop with a running total, but my brain has shut down on what needs to be put into the for loop to complete the program. The program needs … |
| | //This code works for turbo c++ //Solution for strongly connected components or Kosaraju's algorithm //for nitc students //I use this because there is no other way i know how to do post a //code. ///////code:- #include<iostream.h> //#include<math.h> #include<conio.h> //int time; //time=0; char color[10]; int s[10]; int f[10]; int nn; int … |
 | I am trying to create radio buttons in Dev-C++ using C. I am new to Win32 API programming also. What I have done so far is create the main app window, added textboxes, check boxes and a few radio buttons. The only issue I have now is that You cannot … |
| | [code] #include <iostream> #include <string> #include <iomanip> using namespace std; void getData(char marital, int numberofKids, int& exempt, int& numberofPeople, double& grossSalary, double& penAmt); double taxAmount(double taxIncome, int perExempt, double taxRate); int main() { double grossSalary; double penAmt; int numberofPeople; char marital; int numberofKids; int exempt; double taxIncome; double taxRate; getData(marital, … |
| | I have a homework assignment that I'm stuck on...i have to make a program that works like text messaging on a cell phone. It uses three classes, keypad, display, and texter. keypad - is the keypad. it allows the user to enter all alpha-numeric characters. the class handles input. it … |
| | HI! i have two dlls one is in c# and the other in c++ i need to send a string from the c# to the c++ :S i've tried many ways i found all over internet but always i receive garbage inside c++, any example on how to do it? … |
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