49,766 Topics
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| | Good day to all, I'm doing a project about inverse permutations from an array of permutations. It's my first time coding on permutations so I don't have any experience on this. So I came up with a solution to just swap the array and the element number as the inverted … |
| | I'm just starting to learn c++ and need to know how would you read the first line from a file and write to a new file? thanks  |
| | Given the number of commodities bought, create a program that computes the total amount purchased in a fast food center. Assume that the following unit price of each commodity Fried Chicken= 29.75 Cheese Burger= 25.00 French Fries= 18.50 Soft Drinks=14.25  |
| | I need help making two substrings(I think) to get the integer values (course hours, grade) for each course. I thought I had it but every time I ran the .exe it would crash after obtaining the name and major, so I deleted that code altogether. It'd be grand if someone … |
| | Hey everyone I'm new here and I need help with a homework assignment that allows the user to make change. The assignment is as follows: You will write a program that will calculate the minimal amount of coins needed to make change for some amount of cents. The program will …  |
| | if you declared/defined a virtual function for a class and redefined it in a derived class so that when you call the derived class it calls its own version of the function and not the base class function , how do you call the base class function on the definition …  |
| | I am compiling a VC++ source file in VS2008 licenced edition. Using the following header files: #include <regex> But I am getting the below error while compiling. fatal error C1083: Cannot open include file: 'regex': No such file or directory Please advise what Iam missing here.. :(  |
| | Dear Sir, I am tring to convert integer to string and using string for further find and replace operations. While doing so I am using for loop to for integers and then wants to store all these integers in strings. But I did not succeed. But If I use only … |
| | friends i am learning visual c++ 6.0.i need to know how to connect the database(oracle).can you tell me how to do??.give me some example.... mfc application connect to oracle database,any example ??? thanking you  |
| | hey can any 1 help me out here coz i am new to c++ and have couple of errors Using a program that gets the product of even numbers and sum of odd numbers between 1000 and 100, demonstrate the syntax and implementation of the different types of loops. have … |
| | Ok my question is: How I can create a window into my window.(My dialog is ready in .rc file) I want to complete my level editor for my new game but I've got problem with the toolboxes. I've got one white filled window with menu. Menu>>Tools>>Object Manager. When this is … |
| | heyyy guysss....just trying to make a code to proove .999=1 any ideass?? :)) ty!! |
| | I am trying to create my login system but I have got a problem with reconizing the value from a file. getline(fstream) recognizes it and puts it in a char(reg_confirm), but I can't set a different function for a different value. it should go like this: if (value == "0") …  |
 | Dear Friends I have a dataset like below. 1 means Straight line with startPointX,startPointY,endPointX,endPointY. ////////////////////////////////////////////////////////////// 1 0.000000 24.600000 -15.500000 28.575000 1 -15.500000 28.575000 -37.700000 28.575000 1 -37.700000 28.575000 -37.700000 36.515000 1 -37.700000 36.515000 -59.920000 36.515000 1 -178.200000 52.000000 -138.200000 52.000000 1 0.000000 24.600000 0.000000 19.000000 1 -125.421613 36.515000 -138.200000 52.000000 … |
| | hey please could you help me out i have a problem with this code the normal cash is taking me to the transfer[CODE]#include <stdio.h> #include <conio.h> void main() { char x,ch1,y,Y; int pin=12345, account=12591,account1, choice; int fcash, famount; //char login[10]=’joeliwain’ int withdraw, deposit, transfer, amount; printf(":--------------------------------------:\n"); printf(": Welcome to ATM … |
| | I have created a header file and a main.cpp file in Visual Studio C++. I have the concept down but i'm not sure that my program is written correctly as it is failing with teh following error; error C2447: '{' : missing function header (old-style formal list?) I want to … |
| | #include <iostream> #include "Invoice.h" using namespace std; int main() { string description; double price; int quantity; cout << "Enter the description: "; getline(cin, description); cout << "Enter the unit price: "; cin >> price; cout << "Enter the quantity: "; cin >> quantity; cout << endl;//a new line //create an … |
| | I've created a list of strings and load a text file in it. once list is created, the program have to read it, do something and write results in a new text file. [CODE] ofstream f; f.open("filename.txt"); string key; list<string> text; static char ALPH[21] = {'A','B','C','D','E','F','G','H','I','L','M','N','O','P','Q','R','S','T','U','V','Z'}; int* index_t = new … |
| | Ok how would I make a program take one file (thats not a text file) and save with a different name like there is a file with asdf.7z and I want the program to save a copy of it as qwer.7z how? And is there any way to do something … |
| | [CODE] struct S{ int i; double d; S(const S & incoming_S):i(S.i),d(S.d){} }; void test(){ S myS=S( /*temporary variable*/ S(23,3.14) ); } [/CODE] Questions: 1) During initialisation, is the temporary variable S(23,3.14) actually created or can it (and is it actually for typical compilers such as VS2008) optimised away? 2) Same … |
| | I am trying to get the number of months on one side to pay a car loan off and then the other side to have a decrease in the money owned. I have been staring at this thing for about 2 hours and i dont understand why it won't subtract … |
| | Well how would I do it? Make something like winrar but alot less compresstion ratio and in a cui? PS sorry for not answering many questions alot of this stuff is in a different side of c++ I dontnormaly use? |
| | I wrote a program that creates a text file with some letters using ofstream. Now I would like to format the text so that the letters are written in groups of 5 and the rows are all the same length( i.e. DANIWEBFORUM becomes DANIW EBFOR UM). To do this the …  |
| | I have a function C++ file, created in VS 2005. But I am not sure how to register that function in mysql, so that it get stored somewhere in mysql database and when the query runs, it should retrieve the func definition from the database itself.. Please guide me with … |
| | So in the beginning, Im sure i can ditch #include <string>... Im sure at the end, where i have a million cout's (42-69) that could be simplified (i feel like the inverse of the distributive property in math could be applied. I want the ouput to look the same. this … |
| | Can someone help me I keep getting an error code on this line and I cannot figure it out. cout <<"Encrypted digits:"; << digit_three; digit_four; digit_one; digit_two; << endl;// display encrypted numbers ________________________________________________________________________________________ #include <iostream> // required to perform C++ stream I/O #include <iomanip> // required to perform setprecision stream … |
| | Hey,I've been dabbling in programming for about a year and a half now, and I understand pretty well how to use the basic commands and such, although I still have to refer back to a documentation on some libraries to fix problems, but I have begun to effectively snipe out … |
| | I`m having serious problem. class Set { Point_<int> point; int val; double *module; }; Mat m; Set s; m.push_back(s); It says see reference to function template instantiation 'void cv::Mat::push_back<Set>(const _Tp &)' being compiled When i add <Set> after push_back it brings me: see reference to class template instantiation 'cv::Mat_<_Tp>' being … |
| | i hav car racing program in c++ and i wish to convert this program in c what i do? prigram is this...... [CODE] #include <iostream.h> #include <dos.h> #include <graphics.h> #include <conio.h> #include <stdlib.h> #include <stdio.h> #include <time.h> #include <ctype.h> class car { private: int x1,y1,x2,y2,col,col2,col3; public: car():x1(200),y1(300),x2(270),y2(200),col(4) {} car(int a,int …  |
| | Hello. I am trying to validate a customer number using isdigit. If the user accidently enters a character other than an integer, I want it to allow the user to try again. The problem is it only will check the first number and if that is a digit it it … |
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