51,593 Topics
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 | Could someone please tell me how to overload ++ operator in the postfix form. ++ sholud increment the instance variable avar of following class: class A { int avar; public: A() { avar=0; } A(int a) { avar=a; } void display() { cout<<endl<<avar; } |
| | Hi all, So I'm creating a program that will calculate the grade average of students in a class. I'm suppose to read a file into an array and I'm having problems with that. Here is part of my code. [CODE] //Output Func void StudentStat::Output() { for (int i = 0; … |
| | Hey out there. Lerner had given me some great ideas for searching (scouring) a string. Only problem I'm having now is I can't get past the error for 'cannot convert const to a std' I also don't think I can use this function like I am within my prgm (at … |
| | I am trying to resize a panel through a if-statement like this but am a bit unsure how the if-statement should look like. I am trying to put if size is (0, 694) for the panel1. [code] if ( panel1->Size() == System:: Drawing:: Size(0, 694) ) { this->panel1->Size = System:: … |
| | I'm having problems with displaying the total payment amount in the invoice when I enter courses and with the first step of entering 6 courses that i need to put if i want to try again or not. here is what it's suppose to look like... Please if anyone can … |
| | I just started using C++ and have a practice exercise, can anybody do this? It seems complicated. You have been requested by “Honest Dave’s Used Cars” to write a program to calculate the monthly car payment for their customers.. As much as possible you are to develop the code as … |
| | I have a little wondering what the third element "0" stands for in the accumulate function. [code] std::vector<double> vec(10); double sum = std::accumulate( vec.begin() + 1, vec.begin() + 5, 0); [/code] |
| | Hi, I don't know if anyone can help but I'm trying to figure out this switch case problem for my read file function. This is just the read file portion. I'm reading in a text file (bottom), and at this point I'm trying to determine electoral votes based on who … |
 | [CODE]In relation to another post, I did enroll in the Game Institute. [URL="http://www.gameinstitute.com/"]http://www.gameinstitute.com/[/URL] Thanx for the input Thanx for the help "lAmoebal". It actually is helping more then when I was following along with other tutorials I have tried. Maybe it 's the structure. I still find C++ difficult. for …  |
| | Hi, I got one, two dimensional array. MyArray[1000][2]. Both the array i.e. MyArray[0][0]........ MyArray[0][1]....... are filled with some values. Now I got he given values for both: e.g. value_0 = 4.056 and value_1 = -201.375. I have to search the arrayMyArray[0]...MyArray[999] and find the closest value row for the given … |
| | [QUOTE]Problem: write a function named powfun() that raises an integer number passed to it to a positive integer power and displays the result. The positive integer should be the second value passed to the function. Declare the variable used to store the result as a long integer data type to … |
| | If I am serching this substring within a string. Is there any function that can search this just if the letters are correct, not if it is uppercase or lowercase. So it wouldn´t matter if the string looked like ex: Number[ number[ numBer[ etc... [code] string stringToFind = "Number["; [/code] |
| | Please help, I do not understand the correlation between the function definition and the call in main. My program is receiving build errors- please assist with determining what the definition of this program should be. Thank you! [code=c++] #include <iostream> using namespace std; void yrCalc(int totalDays, int& year, int& month, … |
| | Hello, everyone, This program is supposed to read roman numerals from a file and convert them to ints using functions. My functions work fine as standalone programs, but they aren't giving me the results I'm expecting. The weird results point to problem with my do/while loop. The goal is to … |
 | how to generate random numbers between a and b? is there any in-built function?  |
| | k hi every1, im kinda new to C++, anyways..this is an assignment for my college. im supposed create a program that displays the username in a "creative" way. so first thing is do i use the get and ignore functions to get the initial if the user enters the whole … |
| | I am trying to do a sequential string, but when I run my program I recieve three errors:the first one talks about 'searchList' : cannot convert parameter 3 from 'const char [4]' to 'std::string [] ( I tried putting code tags by inserting my code between the [code] [/code], but … |
| | Hello! i have the following data in a file student_id student_name maths_score english_score physics_score can i use a nested structure to read the file? [CODE] struct student { int id; char name[40]; }; struct score { int maths; int english; int physics; }; [/CODE] if yes, how will i read … |
| | i am doing a decimal to binary conversion and i have figure out how to do the conversion i just don't know how to make it cout so that it is in reverse.... i was also told that it could done in a while loop here is the code [code] … |
| | Ive been trying to understand the below code for a while and need to know if it "acts like a record" for a single user. At the `end users[userdb]` is like an array for 6 struct user records? #define userdb 5 /* DataBase*/ struct user {char username[10]; char userid[9]; char … |
| | I need help in C++ .Class name Driller has three data member (int Code Private, int Quantity private and Name public) it has 3 function: 1. Depth, the drills drills is based on the following: code 2000 depth(m) 300, code 3000 depth 500 and code 4000 depth 1000. 2. Cost … |
| | Alright so here is the jist I need to make a programm that inputs a number and checks if the number entered is a prime number. I got the programm to work (without pointers) but the requirement is i HAVE to use pointers. I read up on points, did the … |
 | I have assignment and need help determining if I am correct. The question reads: a.Write a function that determines whether a number is prime b.use the function to determine and print out all prime numbers between 2 and 10,000. [B][U]How many numbers to you have to test before being sure … |
| | I'm extremely new to c++- this is a homework question- I do not understand how to write my program for this problem: Write a function named yrCalc() that has an interger parameter representing the total number of days since the turn of the last century (1/1/1900) and reference parameters named … |
| | hi, i need help please... i need to write a program to calculate the depreciation of equipment passed its useful life using two different methods... these are the actual requirements for the program: "Depreciation" Program requirements: 1) write a c++ program to calculate depreciation using the straight-line and sum-of-digits methods. … |
| | I have a .txt file that contains this informaton: Numb1 Number2[1] Numb3 Now there is 2 things that I am trying to do here. I dont know how to begin this. First I will search if there is any Word in this file that is named: Number2[1] But the tricky … |
| | Received some prior help to clean up my code and get this to compile which, it does in fact compile, but it seems to end after the int main(). I have tried several other possibilities with moving code around for the various functions, and I still cannot seem to get … |
| | I don't understand why this program is making me input two more times (after the program is finished) before it terminates. All other programs that I do usually terminates while this code idles. For those who are confused, I have to enter extra characters and hit "enter," twice before the … |
| | I really hope someone can help with this...We've been working on the same 'core' abstract data type files (ListA.h & ListA.cpp) thus far this semester. Progressively adding different methods along with the new concepts introduced. AppointmentBook is our class, and each project calls for some implementation of a simulated appointment … |
| | In the code below, can someone explain how the incrementing for the successive iterations results in the output? Thanks. [CODE]int main() { using namespace std; for (int i = 0; i < 3; i++) for (int j = 0; j < 3; j++) cout << i << " " << … |
| | ihello, i am doing to print the no of multiplies using for loop but it print only last no i.e if i give no is 2 then after multiplication it prints 20.i want to print all multiplies. the for loop code is for (i=0;i<=n;i++) int no; no=n*ii; } for (i=0;i<=n;i++) …  |
| | I am trying to find how to open a Native project in VC++ 2008 NET That has this: int main() like below but I cant find what is the name of this project. int main() { return 0; }  |
| | Hello again. Now I'm asked to replace the texts in an existing software (Compiled with Visual). Like "Welcome to...." some remove a block of text entirely. I replaced all the images and icons before. Any ideas? Cheers! |
| | I am taking a course on C++ game dev and one of the exercises asks me to write a program that: asks the user to input two numbers. compute those numbers, +, -, *, %. and then display the results. It took me forever and a minute, but I got … |
| | i'm working on a banking system.....m stuck here....i dont know how to do this: 1.Their account should already have an amount of money for further processing. 2.All users are able to perform transactions such as withdrawal, deposit and check balance etc. 3.Each user will have a file or record to … |
| | am trying to write a program which compute sin using an a equation instead of the function of sin in cmath libry. "the equation is like this Tn = (Tn-2 *(-1) *x*x)/ n*(n-1) [code=cplusplus] #include<iostream> #include<cmath> using namespace std; int main() { int factorial(int); int n =1, i = 1; … |
| | hi, this is my prime number check program, i've posted it here b4, thanks to ur helpfull replys i managed to get it up and running how ever it gives this warning....C4715: 'isPrime' : not all control paths return a value....i cant figureout where the error is. could someone tell … |
| | I'm trying to write a while loop to terminate a program when asked if you want to enter another name and the answer is no (or a number since I'm using character strings) My first idea was to check the 0 element of the first name part asked for, but … |
| | Help me! what is operator overloading?explain its types, with examples |
| | I am a sutdent of SVGCC and i am writing a simple encryption code but I am lost on how to start. I know i have to use i/O files to open the code but i cannot find on the net a way to edit the information to aid me …  |
| | im making a battleship game and so far i have this but im getting an error and i don't know what it means, this is the error [inlinecode]error C2664: 'strcpy' : cannot convert parameter 1 from 'char' to 'char *'[/inlinecode] this is my code [code=cplusplus] #include <iostream.h> #include <stdlib.h> #include … |
| | I tried them but i cant seem to get them to compile so it would be really nice if you can try them and let me know where i went wrong! here are the question: (Airline Reservations System) A small airline has just purchased a computer for its new automated … |
| | I know I'm not the best with functions in C++ and that's probally why I'm having problems, but anyways I keep getting these errors: [linker error] undefined reference to 'Area(float,float)' [linker error] undefined reference to 'Circumference(float,float)' [linker error] undefined reference to 'Diameter(float,float)' I also get a message that says: Id … |
 | Hi there. I'm pretty beginner at functions, and I would like to know if it's possible to have a parameter of a function that takes multiple arguments. Like in Python, you could have [CODE=python] >>> def a(*args): print args >>> a(1, 2, 3, 4, 5, 6) (1, 2, 3, 4, … |
| | [QUOTE]Hi, how do I get rid of a conversion from double to float warning??[/QUOTE] Thanks |
| | [CODE]#include <iostream> #include <fstream> #include <string> using namespace std; struct TsuPod //First letter capitalized just like in adobe reader file. { string title; string artist; int size; } //////////////////////////////// /* FUNCTION - void initTsuPod Initialize all the slots to blank and 0 size memory. input parms - none. output parms … |
| | I'm trying to calculate the length of three individual arrays and plug that length into a function to dynamically allocate memory to a new array and delete it. I keep overwriting my HEAP and I'm not sure where the problem is [code] void punchmeinthehead() { const int maxin = 16; … |
| | could any one tell me the exact syntax and semantics of cin.get() and cin.ignore() ? |
| | #include<iostream.h> class A { int avar; public: A() { avar=0; } A(int a) { avar=a; } void dis() { cout<<endl<<"avar = "<<avar; } void operator ++ (); }; void A::operator ++ () /*[B][U] from compilation message it is known that this is prefix form , how do I specify the …  |
| | This is just a school level program and I am a C++ n00b. So I would be grateful to people helping me out with this if there is any solution. CAN I TERMINATE A STRING ENTERED BY --getch();-- WHEN I PRESS THE <ENTER> KEY ?? SEE THE PROGRAM BELOW WHERE …  |
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