49,765 Topics
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| | hello there...i've been using this function to know if the input of the user is a number or a letter...but it's not working... [code] #include <iostream> #include <math.h> using namespace std; double temp2; int main(){ cout << "\n enter something"; cin >> temp2; if(isnan(temp2)){ cout << "not a number \n"; … |
| | Hi guys, I startin the project of a (web) server in c++ and i want to able to manage about 1000-2000 clients. I have been reading alot about Single-thread VS Multi-thread server and i wanna know what u guys think about it. I do not plan on using one-thread-per-client because … |
| | How would one right justify a string with a width of 4 and store it in a variable without being able to use cout? If that is even possible.  |
| | hello everyone. i'm developing a program from a department-store customerhas exceeded the credit limit on a charge account.for each of the following facts are available.account no,balance of the begining of the month,i total of all items charged by this customer,total of all credit applied to this customer.'m required to instal …  |
| | I Want To Use A For Loop To Enter Three Answers From Three Questions But My Problem Is I Don't Have An Idea Coz I'm New To This C++ Language Please Help? THE LOOP STARTS TO COUNT FROM 100  |
| | Hi, I've been trying to create a C++ program that gets the input from the user, calculates the amount of digits in the array and then calculates the sum of the digits Heres what i've got so far int main() { char num[100]; cout << "\nEnter Number: "; cin >> … |
| | ok, i need small help, to create/open a file with specific name, in order to make it clear here's a small function from my program [code=cpp] void CreateNew () { string fileName = "helpme.txt"; //==>>> my problem!! ofstream DataFile; DataFile.open(fileName, ios::out | ios::app); // string fileName == filename if (DataFile.is_open()) … |
| | i am new to c++ and have been asked to create an encryption programme using the zig zag (rail fence) cipher. this will be saved to a file, and when it is opened the file will be decrypted. a user will type in a message. The message is then read …  |
| | i have a homework my homework is to place 8 quenns pieces from the game of chess on a chessboard so that no queen piece is threatening another queen on the board.All of the solutions can be found using a recursive algorithm.The algorithm works by placing queens on various positions,adding …  |
| | Im looking for a network library for c++ cos Im planning to write a small network application. something along the lines of a port scanner. I would be interested in knowing which library most people use and what is recommended. |
 | Hi.. I know C and C++ and learned the basics in 1 month. now, i am writing programs, but that programs are only for mathematics. Is there anyway i can learn system programming in C? What site would you recommend?? Thanks!.. |
| | Hmm. I am converting a string into an int. [code=c++] string sum(string line) { string first; string last; string scores; string output; istringstream lineStream(line); lineStream >> last; lineStream >> first; for (int i = 0; i < 10; i++) { string getScores = "0 "; lineStream >> getScores; scores += … |
| | hi i have problem i have to devolpe a program ,that can't use a printf ,but i have to display a string. is this works int a = printf("How is this\n"); main() { int b; } This will work in C++ wht abt c? AND one more [B]HOW sizeof()[/B] [B]implemented … |
| | Hi, I've been trying to get this to work for the past two hours and can't figure out why this run-time error is happening. The code is as follows: [code=cplusplus] #include<queue> #include<stack> #include<iostream> usingnamespace std; int main() { stack<char,deque<char,allocator<char> > > s; queue<char,deque<char,allocator<char> > > q; char ch; int count …  |
| | First of all im a java programmer and im porting to c\c++. I have no knowledge of c\c++. Because my work requires me to learn c\c++. in just 1 week they want me to code intermediate stuff. I wasnt able to comply 100% to their requirments but at least i …  |
| | hello there, im new in c++...i just want to know how to compare a string to null like: [code] string x; cin >> x; if(x==NULL){ cout << "null"; } [/code] im using this one, [b] if(&x==0) [/b]...but it does'nt work... this is what my mentor told me to do... help..thanks |
| | Is there a member function in the string class to put two strings together at a certain index? For example... if i took these two strings... city = Memphis and state = Tennessee to put them together like this [code=c++] Memphis Tennessee [/code] The city would start at index 0 … |
| | Hi, I have to port a code onto an ARM processor... what is the most commonly used methods for optimizing C code? I`ve read abt limiting the number of parameters in a function, pass values by refernce in argunments rather than by value, and trying to avoid global variables... My … |
| | [code=language] #include <iostream.h> char first[ 20 ]; char middle[ 20 ]; char last[ 20 ]; main() { cout << "What is your name ScumBag? "; cin >> first >> "\n" >> middle >> "\n" >> last; return 0; } [/code] |
| | Develop a C++ program that will determine whether a department-store customer has ex-ceeded the credit limit on a charge account. For each customer, the following facts are available: a. account number (an integer) b. balance at the beginning of the month c. total of all items charged by this customer … |
| | i'm developing a c++ program here and also i'm nwe to c++. i have been given a program that has to print integers from 0-10 with their squares and cubes in a table form. but the problem is i'm only allowed to use if statement onyl to do this program.well … |
 | [B][COLOR=darkorchid] [/COLOR][/B] [B][COLOR=darkorchid]hi ^^/[/COLOR][/B] [B][COLOR=darkorchid]i'm new here ,, & i have some questions :pretty: ,,[/COLOR][/B] [B][COLOR=darkorchid]mmm,, it may sound easy to u ,, but what can i do i'm just a beginner:icon_sad: ..[/COLOR][/B] [B][COLOR=darkorchid][/COLOR][/B] [B][COLOR=darkorchid]can some1 explain to me how to do this program using 2-dimentional arreys ?[/COLOR][/B] [B][COLOR=darkorchid]pls dont … |
| | Hello all, I am a mainframe programmer for about 20 years. Its time to expand my knowledge to more languages. I was hoping someone could direct me to some good online C++ courses I could take. hanks in advance to all that reply.. Regards Warren |
| | i tried to run a graphics program in my borland c++ 5.02 compiler.. i opened a new project, changed the platform to DOS(Standard) mode... check marked the BGI option.. and added my program as a new node to my project.. and compiled it successfully but when i try to execute … |
| | hello there, i have no idea how to check if a directory in linux already exist, can someone point me an example..pls..thanks |
| | hello there, i have here a program(linux based) that creates a directory then transfer files to that said directory...the problem is, im using strcat to join my bash script commands to the users inputs..now, i have a loop that concatenates the commands... is there a way that a concatenation will … |
| | [COLOR=#000000]The Program. [/COLOR] [COLOR=#000000]You have been asked to solve a problem for an old gameplayer. She has purchased a new game. It is a sort of Solitaire. This suits the old gameplayer as she has no friends so a game played alone is ideal. [/COLOR] [COLOR=#000000]The game is played on …  |
 | Hi everyone, This is my first post, so a brief introduction: I am a first year Engineering student in Trinity College Dublin. We have a fairly intensive workload including Maths, Physics, Chemistry, Mechanics, Logic, Graphics, and of-course Computer Science. The CS part of the course is easily my favourite and …  |
| | hello there, im having trouble with the system() function...as much as possible, i would like my program to be dynamic...i created a program that will make an iso file...it will ask the user to input the directory that he would like to compress...the problem is, how do i append this … |
| | HI guys, I am taking C++ and I'm suppose to write this program where it asks the user to input a grade that they recieved in their exam . The grade is an interger from 0 to 100. Basicly the program should convert the numeric grade to a letter grade. … |
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