51,593 Topics
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| | I am trying to add a comma to the end of each line ('\n') of a text file til the end of the file is reached. I am opening the file in append mode but am unsure as to how to go about identifying when the end of line is … |
 | Suppose my file a.txt has "ABC" written in it. Now I want to write a small b before capital B in the file. How will I do it? I've tried to do it but i'm having problems. 1. When opened in app mode seekp doesn't work. 2. When opened normally … |
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| | I have a header file, but I don't know how to do it: I am new to templates. template <class T> class Array { public: Array(int l, int h); Array(int s); Array(const Array& other); ~Array(); T& operator[](int index); const T& operator[](int index) const; int get_size() const {return size;} private: int … |
| | Hi Everyone, I have a program that takes data in a two dimensional array, performs simple calculations, and then writes the data to a file. When I call the function that calculates and writes, I get an error on the two dimensional array stating: "argument of type 'int' is incompatible …  |
| | I recently got a question by my tutor to wite a program in C++ and the question is as follows so can someone else try out with it by writing another program in C++ since i have already written it in 2 ways and would like someone else to try …  |
 | I'm trying to run a file called configure.bat which contains the following: echo off mkdir Platforms mkdir Platforms\bb2010wm FOR /F "tokens=2* " %%A IN ('REG QUERY "HKLM\SOFTWARE\CodeGear\BDS\7.0" /v RootDir') DO SET BCB2010_ENV_ROOT=%%B cd Platforms\bb2010wm ..\..\build\cmake\bin\cmake.exe -G "Borland Makefiles" -D CMAKE_C_FLAGS:STRING="-g0 -tWM -WU -x -xd -w-8012 -w-8027 -w-8026 -w-8066 -w-8022 -w-8004 …  |
 | so i have a mini text adventure game where i can go through the rooms and have made a start trying to implement a inventory, i can type things in and store them in a text file, but i want to be able to find an object in a room …  |
| | I am getting an iphone soon and would like to write some programs for it using c++, I know all about apple and objective c but I want to use C++, as I am more skilled in C++. So is there a compiler out there that will enable me to …  |
 | I'm using windows 8 and I wanna know can I cross compile a C++ program for symbian Belle?How? Thanks |
 | Hello, I read a large file (>7GB) from disk. The file is as set of attributes like this: 0.2,0.3,0.5,0.6,0.8 0.5,0.7,0.2,0.2,0.5 . . I want to read only the first columns(i.e. 0.2, 0.5,...) into a vector. I do not need the other columns. The problem that when I use the fstream …  |
 | Is there a simple function that will allow me to output an out file stream to hex from an int. Let me give you an example of what I am trying to do. { ofstream out; out.open("c:\\test.txt"); for(int i = 0; i<20;i++) { out::ios::hex<<i; }; the above code does not …  |
| | how to get the source code to dll that are already build?? because the source code is my clear all, and only the remaining dll.. how you can help, thanks :) |
 | `Inline Code Example Here`Can anyone please give me the code for copy detection. OBJECTIVE: A program that detects copied codes.<o:p></o:p> Sometimes students tend to submit copied assignments and detecting copy cases manually can be very time-consuming. You are going to write a simple software that compares two files word-by-word and … |
| | I am building a game similar to the tron game. I want to use the arrow keys to control the movement of the player. I do not have all the code completed but attached what I have so far. #include<iostream> #include<string> #include<conio.h> #include<Windows.h> #include<cstdlib> #include<ctime> using namespace std; //Declarations bool … |
| | My program is working perfectly but when I want to initialize the default constructor which is all zero's it prints -9.25596e+061 . Hier is the code : class Sales { private: static const int QUARTERS = 4; public: double sales[QUARTERS]; double average; double max; double min; Sales(); Sales( double ar[]); … |
| | Hi, In Windows 7 (and possibly older, can't remember off the top of my head), you can select which icons appear in your taskbar and which ones are only visible if you click the up arrow. Is there a way to set this default programatically? If it's relevant, my current … |
 | I'm making an address book for class and i'm stuck. The teacher helped with some of the code I already have. Sorry for the lack of comments. I need help with the function to add records and then save them. Thanks #include <iostream> #include <fstream> #include <iomanip> #include <string.h> using … |
| | I'm a computer science major and I'm taking an intro to C++ programming course. I have to write a program that reads in the data from a .txt file and echoprint it, and also print the data again but with every fifth word with 10 underscores. I was able to …  |
| | Hey, we just started learning functions in class. We were given a project to complete. I'm trying to work out the errors, but I'm stuck with error C2084: function 'void bubblesort(int [],int)' already has a body error C2084: function 'void print(int [],int)' already has a body error C2084: function 'void …  |
| | Hello again everybody. I have a question which may be very basic for allot of you, so here it goes. I want to understand the process of creating makefiles. I've I realise there's some books out there like 'Mastering Cmake' and 'GNU Make' which describe the insides of these things, …  |
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| | private void update() Int64 sum = 0; sum = (!string.IsNullOrEmpty(Request.QueryString["Id"])) ? Int64.Parse(Request.QueryString["Id"]) : 0; if (sum != 0) - Here in Debug mode, i get this condition is false and equals 0 { var context = new myDatabase(); var s = context.myTableName.FirstOrDefault(c => c.Id == sum); if (s!= null && … |
| | Hey guys, I have been reading the forum for a while, but I couldn't find anything that could help to figure out my current assignment. Its a very simple program, but somehow just doesn't work for me. I'm a beginner and I hope that somebody can explain what am I … |
| | // In this program: when i compile this program, the complier shows error in the main section(I have mention this error in main section) that is "can not convert sample to sample in assignment". this error is occuring only when i try to access private members of class through pointer … |
 | #include <iostream> #include <fstream> #include <windows.h> #include <ctime> #include <string> #include <iomanip> using namespace std; enum ConsoleColor {Black, Blue, Green, Cyan, Red, Magenta, Brown, LightGray, DarkGray, LightBlue, LightGreen, LightCyan, LightRed, LightMagenta, Yellow, White }; void line(void); const int Start=1900; void write_Data(); void Read_Data(); void SetColor(int text, int background=Black) { HANDLE … |
 | This is a C++ program that reads as input a text file. The file is read character by character and count the number of unique characters.  |
| | Hi everyone, I am writing a program that converts numbers to words and vice-versa, like typing on a older cellphone. The user enters as many messages as he wants in numbers and/or text. The first character of the messages indicates what the remaining string is: numbers or letters. I can't … |
| | Huffman Code In this assigment, you need some text files. Click HERE to download some. In this assignment, you are to implement the Fixed-length Huffman coding that we learn in the class. You should perform the following: 1- Huffman Encoder. a. This is a C++ program that reads as input …  |
| | Hi guys, I'm trying to write a function that could convert a lowercase string to uppercase. Not sure if I'm heading the right direction. Essentially the function [CODE]ToUpperString (char s[]);[/CODE] would convert everything in the string to the uppercase equivalent. Here's what I got so far: [CODE]void ToUpperString ( char … |
| | I am a beginner but my problem with this game is that when i enter east it said it going to north. here my code for my main and parser also when i enter a word then it quit the game so how do i make it stay open to …  |
| | So i believe i got my prefix working, now i'm trying to get my postfix working so that the class object happy should have its day increased by 1. Not sure whats wrong. Maybe the way it receives the month and day in the constructor? main #include <iostream> #include <string> … |
 | Hi. I'm having some touble printing year. Here is the code where I expected an output of "Year: 2013" time_t tm; time(&tm); struct tm ts; errno_t err = localtime_s(&ts,&tm); cout << "Year:\t" << ts.tm_year << endl; But what I get is "Year: 113" Appreciate any help offered. |
| | I kept getting an segmentation fault, so I think I need to decrease memory usage but I am unsure of how. I am using the Sieve of Atkins to calculate prime numbers and then testing the primes against 600851475143 (Project Euler). Here is my code so far: #include <iostream> #include …  |
| | i have tried so much to understnd this problem but can't able to get it.. plxx tell me how it will b solve or atleast give me syntax.!! this is the header file that i had made.. // A 2-dimensional point class! // Coordinates are double-precision floating point. class Point …  |
 | Hey guys and gals. I'm looking for a little help here. I am throughly lost as to how to do this program. Keep in mind I am not asking for someone to do it.... although the though is crossing my mind lol. I'm just looking for pushes in the right … |
 | I am looking to finish up this program for class. I'm lost when it comes to arrays and I've read all the course work, the book, etc. The question is how do you increase an array element at the position? using namespace std; int main() { int quantity[4][5], warehouse, product; …  |
| | I've checked through the newest C++ Primer a bit, but it doesn't feel like it fits me that much seeing as I would like it to have more focus on exercises (or something that progresses from a small program to a bigger and more advanced program, you catch my drift) … |
| | How can I write a C++ program that defines three 1D arrays with 19 elements in each array. The arrays will be used to store temperatures in degrees F, degrees C, and Kelvin and Use a loop to initialize the array with degrees F values to 32, 42, 52, …, … |
| | Hi i've been working on a piece of homework we're I've been asked to implement a 2d grid in opengl and extend Dijkstra's algorithm to A star, so far i've been able to get the 2d grid running with Dijkstra's algorithm with not too many problems but my current extenstion … |
| | What is Abstract Class? And what are the difference between Abstract Class and Abstract Method? |
| | Where can I find iostream.h ON THE INTERNET basically, I know how to use iostream.h, but I need to download it. I am not going to download a new compiler. I do not need any tips on how to include it in my program. Just where to find it. I … |
| | program does not work: Assignment: In the sport of diving, seven judges award a score between 0 and 10, where each score may be a floating-point value. The highest and lowest scores are thrown out and the remaining scores are added together. The sum is then multiplied by the degree … |
| | Write a for-loop statement that displays numbers from 1 to 10 in each line. Use Counter as a counter variable |
| | I tried to save my record to wave file with using portaudio library.The samples are saved in recordedSamples array and I tried to add headers of wave file.I am doing something wrong.So,could you please rectify this ?? Thankss...Here is my code : int main(void) { PaStreamParameters inputParameters, outputParameters; PaStream* stream; … |
 | i am trying to a c++ program that will determine if two circles intersect each other. the input will be <x,y> coordinates for the center of each circle followed by the radius of each circle. the output will state whether the circles overlap, don't overlap or tangential(touch each other at … |
| | Hi. First I apologize if in wrong section of forum for this question, but I will eventually be working in C++. I don't know where to start on this project, so my terms will most likely be wrong. The idea is to partially hash an executable file, that part of … |
| | i need help with a c++ code for a prefix calculator using stack... doin basic math functions i.e.(+ , - , *, and /) .. my email add is carl_obwogo@yahoo.co.uk |
| | [Click Here](http://answers.yahoo.com/question/index;_ylt=AlQJPiETIJOaaftERf6r1l7sy6IX;_ylv=3?qid=20130507233149AAQXvZ6) answer this please... |
 | I was in the library's multimedia room to do my assignment, but all PCs don't have Visual Studio and other smiliar programs. So I wrtie the code on Notepad for the question: > Design a solution that will determine and display the fewest number of ringgit and coins in change … |
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