[c++] Forum Topics

im a beginner in C++ and require help in developing a program that converts the price of a list of items from a text file from £ to euros. i am supposed to be able to edit this program so that there is a). GBP/Euro conversion rate. b). Data to …

ok, so I'm supposed to write a program which allows the user to input 5 candidate names and the number of votes they receive. The program should the spit out the names, number of votes, percentage of votes received, the total votes, and the winner of the election. This is …

Hello, I have a small app that uses pipes to do some basic client / server communication, just for testing purposes. Well, when the server is run before the client, it works fine. However, if the client is run before the server, there are problems. To solve this I wanted …

I would like to design a program to implement a string of operation, such as: 1+3/4+5*5-(454*23-34) Then, it returns a correct answer. And what's the exact algorithms?

Hello, I am new here looking for some advice. I belong to a programming group that intends to simulate hearing loss via software that we are creating. At the moment, we are looking to see how are we able to obtain sound from sound cards. What we intend to do …

hi, I need to find a way to get a list of all of the files in the current folder, so i thought i could have my program execute the 'dir' command into the command prompt and then parse what is returened. would anyone have any ideas on how I …

I declare a array of pointers: [CODE]char *a[13];[/CODE] And how can I allocate memory for it using "new"? (I'm a Chinese student,so my expression may be not so exact~)

1, who can tell me the defference between "cerr" and "cout"? 2, if I will handle these operations, how can I do? [CODE]cout << 7/2 << " " << 7/0<<" " << 7/3;[/CODE] 7/0 is wrong,but I will let the codes continue, that is , let the result of 7/3 …

please help...when case 2, 3, or 4 are chosen the program goes into an infinite loop except for case 1 which works fine.... [code] //this program performs addition (grades 1,2,3,4), subtraction (grades 2,3,4), multiplication (grades 3,4), and division(grade 4) #include <cstdlib> #include <ctime> #include <iostream> using namespace std; int main() …

At runtime I obtain an instance of descendant of TObject (for example its name is TGoodForm). The definition of TGoodForm is unknown at compile time (I know that it is TGoodForm from TObject::ClassName()). [B]The question: how to create new instance of TGoodForm ?[/B] In another words, can I get address …

LNK2022: Metadata Operation Failed (8013118D) Using MFC and meet with this error (__POSITION) Error ? In MSDN ,it says that ,"This behavior occurs because the compiler generated incorrect metadata for these anonymous structures. " and the Resolution is "To resolve this problem, add unique identifiers when you use Managed Extensions …

Please help, I am writing a program to take in 3 values and return the shape of a triangle. The program runs, but not quite right. Instead of returning the shape of a triangle, it returns a smiley face....which really surprised me. Can anybody help? The code I have is: …

Hi I'm writing a program that is designed to have a user input the degree and coefficients for a polynomial with two variables, x and y, and i'm having trouble figureing out how to output the degree for the y, and tryin to ignore the term if the coefficient is …

It's easy enough in Java. How is it done in C++? for e.g. I have a class called Relation, that has a name field (just a string) and then a vector of strings. I want to specify that wherever I type (for example): Relation* r = new Relation(...); cout << …

please help me to write this program Ihave make one closed to it but I could not do it as what it says here is the problem and my solution: This is the program Write a program that outputs a telephone bill, given information on telephone calls made by the …

Here soon, I was hoping to buy an IDE for C++. However, I'm not sure which is the best to buy. I only know of Borland and Microsoft's as popular IDEs. Are there any other popular IDE's that are worth purchasing. I'll be heading off to college here soon, and …

[code]//final.cpp //Creates an array with 2 players' batting avg //Read in hits and atbats for each player //1) one player get data in main //2) other get data in battingavg function //battingavg function figures out battingavg for both players // and puts them in array (not hits & abats), print …

can yall help me-i need to be able to output in preorder (root, left, right) and in post order (left, right, root)- when i output now it is in order (left, root, right)- how come it does this automatically, just wondering about that-but i need help with preorder and postorder, …

Hi everybody I am asked to develop a search utility in C++. That should search words inside files like pdf, chm, word, excel and txt. The user will provide the directory to be searched and some keywords. Based on the keywords, I have to search these files for the keywords. …

[code] int hangman::checkstatus() { for ( int i = 0; i < 5; i++ ) { if (encryption[i] == '*' ) { return i; cout << i; break; } } if ( i == 4 ) { cout<<"You win!"<<endl; } return 0; } [/code] Hello guys, this function always returns …

Hi Friends, I want to write a MP3 player with minimum GUI for Linux (Fedora) I dont know where to start with I have knowledge of C/C++ programming, but not much knowledge of creating a GUI. I use Eclipse. I want to write for KDE. Can you please guide me …

[CODE]if(cmd=="new"){ string name,desc; cout<<"Name? "; cin>>name; Setcursor(Conloc); cout<<"Desc? "; cin>>desc; Setcursor(Bodyloc); Invitem Item(name,desc);[/CODE] When the values of the string desc is set through cin, if a space is used, all text after that space isn't used. Also, If two words are used when setting name, it will give the second …

Hi, I'm trying to use the STL map class to be able to store keys and associated values. I started out using it with keys of pre-existing data types like int, string, etc. and was working fine. I was also able to use it with values of custom classes. I'm …

[code]//project.cpp compiles //Need to create an input file of recently shipped music CD's. //The file should consist of the name of the album, quantity shipped and price. // Since we do not know how many CD's have been shipped, keep reading the file //until all CD's have been read in. …

Hello everyone, my code is finally complete thanks to all of your help. One questions I have is regarding the reslts. I thought that Merge was faster than a heap sort. In my results however (when run on Borland c++) Heap comes out with a faster sorting time. The functions …

[I][COLOR=Red]Moderator edit: This response and its replies have been split from the C and C++ Timesaving Tips sticky because they do not add relevant material, and they are long enough to distract from the intended purpose of the thread. Further replies on this topic may be posted in this thread, …

hi, can any one tell me where can i get a idl compiler? i know about [B]idlc[/B] but i cant find any link ... help please ...

Here is a quick question that should be easy to answer. Is there a cubed root function in the C++ library?

As seen in another thread, I'm working on a Log class. I'm running into an issue that if I delete the file that's being written to, the Log class doesn't detect it and continues to 'think' it's writing even though the file is gone... (Note that this is on sun …

hello all can any body help me to correct this code please :cry: :cry: i want it so it can print whats n is in these different cases. this is my code and thanks alot for your help #include <stdio.h> #include <iostream.h> #include <stdlib.h> void main() { int ave, 1st, …