49,757 Topics
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| | Hello all, I have been trying to use swtich cases in conditions but it won't work what I mean is like this; [COLOR="Red"]do{ cout<<"Enter a valid number"; cin>>number; switch(number) { case 0: bla bla break; case 1: bla bla break; case default: cout<<"re-enter"; } }while(defalut);[/COLOR] if that can never happen … |
| | Hi, I am writing a simple graphics engine using homegeneous coordinates (fourVector) and the corresponding 4matrices (fourMatrix). fourVector.cpp: [CODE]fourVector::fourVector(float x, float y, float z, float w): x(x),y(y),z(z),w(w){ };[/CODE] fourMatrix.h [CODE] class fourMatrix{ public: fourVector i,j,k,l; ... }[/CODE] fourMatrix.cpp: [CODE]fourMatrix::fourMatrix():i(fourVector(1,0,0,0)),j(fourVector(0,1,0,0)),k(fourVector(0,0,1,0)),l(fourVector(0,0,0,1)){} fourMatrix::fourMatrix(fourVector &i, fourVector &j, fourVector &k, fourVector &l): i(i),j(j),k(k),l(l){ } ... …  |
| | hi....i am writing a code which reads the contents of file....it has first name, lastname and phone number.....now i want ot read all the first names into one array second into another and phone numbers into third array....i tried but i could read only line by line.....please help out...my code … |
| | Write a C++ program that asks the user to enter the length, width, and depth of a swimming pool using getValues( ). calculate the cubic volume using calcCubic( ). Print the result using printCubic( ). |
| | I just know I'm doing something stupid. The part of my assignment I'm working on is to prompt the user to enter the name of a stock, earnings per share, and price to earning ratio, and then display it after everything is entered. What it's doing now is asking for … |
| | sir iam a begineer student and i want to study about c.in turbo c compilers with starting.plz tech me about the function return and pass though function. |
| | I know this is using C. But if i was using the stdlib.h to use C in C++, can i somehow save the output into a variable. That way i can save the value for later use. something like... int a = 15; int b = 7; int hexValue = …  |
| | I don't understand. Nobody in the US uses this crappy compiler with it's non-standard libraries. No one in the Western World seems to use this. even in second world countries in central and south america, they don't use this. so how is it that Borland seems to have a complete … |
| | hii, I am getting "Error Creating bitmap!" in EVC++ 4.0 on Window CE 5.0. I don't where this error came from. I am using CreateCompatibleBitmap and BitBlt for drawing the screen. I have checked all Error codes , but no luck. Description of Error : It’s the SNAP window with …  |
 | Why people write such cryptic code I will never understand... Can someone explain what is going on in the following: [code] double color = {1,2,3}; double *ptr; // ... assign ptr .... *ptr = *color++; ptr++; [/code] So this line [icode] *ptr = *color++; [/icode] sets the value of the …  |
| | I wrote the following function that takes a string with spaces and replaces the space with an underscore ( _ ). The function works, but I believe there is a less novice way of doing it. Anyone have any suggestions? BTW, this is written in Linux and compiled with G++. … |
| | Hello guys, I'm brushing back up on C++ it's been a long semester of Assembly Language. Anywho, I am writing a program that keeps track of my grades and can average them up if I need and do many other things. I'm using a switch statement as my menu select. … |
| | Here's what i have. Not sure what it is doing exactly. You pack a account object and then you write it to the buffer right? So shouldn't it print after i write it? Main #include <iostream> #include <iomanip> #include "account.h" #include "Lentext.h" #include "Deltext.h" using namespace std; int main() { …  |
| | Hey all, I have this for loop and it keeps printing a '}' at the end of my alphabet and I can't figure out why. Please help me figure out how to get rid of it! :) Thanks! - EngneerNitemare [CODE]// PREPROCESSOR DIRECTIVES #include <iostream> using namespace std ; // … |
| | Hi, I have a similar problem. I need to read and store information from a file such as: in int count=7; //count int float end = 7.5 ; //end out float myout =0; //my out I need to store type(e.g. in or out), variable type (e.g. int), variable name (e.g. … |
| | Hi i'm new to C++ and have made a grading system application. The application works, but I would prefer to use one variable for student name instead of two seperate variables, but when I try to do this it skips to the next line of code when I run the …  |
| | amenu driven program using link list data structure,which keeps track of student record of auniversity. the system should maintain at least the following information about student. name year id number DEPARTEMENT age CGPA |
| | Hopefully this title makes some sense, i wasn't really sure what to put. Hi i need some help with this assignment. Unfortunately, I'm not sure what I've done is anywhere close to what it needs to be. I need to read a list of customer data from a text file … |
| | Hi We have dd command in Unix to make an image of the entire hard disk or a partition of it (bit copy not just a file copy). I would like to know how to do the same in C++. Thanks in advance.... |
| | heya, i am working on this program wonderig anyone can help me finish it . i put in most of the //info on whats suppose to happen but am having trouble figuring out actually how to. [CODE] *Program Description: This program is designed to insert numbers into * an array … |
| | Trying to replace '\n' or its decimal equivalent of 10 after it has a decimal value added with its original value of '\n' or 10. This way the newline character won't appear in the ciphertext as some other visible character. [code=c] while (!plainText.eof()){ string plainLine = ""; getline(plainText, plainLine); int … |
| | This is the last questions I have about arrays. I have no idea of where to go with any of them except writing the header of the functions with the parameters. Again this is just questions from a study guide for my final exam so I am not asking you … |
| | This is another question from my study guide for my final exam. If you all could please give me some help. Write a value returning function called "found" with parameters of a float array a float item and a integer length, that searches the array for any value greater than … |
| | Hey Everyone, I have developed a program to help me geocode approximately 100,000 addresses from Google. After doing some i/o to bring all the names into a vector in C++, I have now 100,000 distinct addresses that I must pull up, retrieve the code from google's server via csv output, … |
| | hey i am trying to write a program that allows two users to play tic tac toe....right now i am doing the program in pieces i have accomplished setting up the two dimensional array. i am having a problem changing the * thats in a section of array to an … |
| | Hi i put most of the //discriptions in so it should be easy to tell what is suppose tohappen where. It is longer then it seems, its very beginner level. Also im not sure i did the functions and arrays perfect. Errors i have before i have been able to … |
| | Hey guys. I have the following string array, say, string array[2]; array[0] = "hello7925"; array[1] = "bye344539"; I want to read the last two characters from each string in the array, which in this case are 25 and 39 and then put them in a separate array like this.. int … |
| | I am working on a study guide for my final exam and need help with this question. Thanks in advance for the help. Write a value-returning function called "prod" that has parameters of two int arrays "arr1" and "arr2" of size"length". "Length" is also a parameter. This function should return … |
| | include a derive class named sphere from the base circle class. the only additional class members of sphere should be s constructor and a calcval () function that returns the volume of the sphere... please kindly help me in correcting the code.. #include <iostream> #include <cmath> using namespace std; const … |
| | hello.. i need tips to solve the problem. The situation is like this: I have randomly generated 20 (pop) array of length = board. The output is this: [QUOTE] [B]1 3 6 4 1 4 6 6[/B] 2 0 1 1 1 3 1 3 3 6 3 4 7 … |
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