General C++ Programming - C++ Forum - January 2011 (Page 3)

Hi all ,i want to read from file vector of strings and write in another file the number of any word's frequency ,but before that i want to sort my vector; here...

[2 replies] Last: OK ,thanks (by holtaf)

by kraigballa

Is the point inside the rectangle?

I am trying to figure out if a specified point is inside of a rectangle. I am given the center of the rectangle (represented as (x,y)). And also the height and ...

[1 reply] : I figured it out for anyone who still needs it. bool Rectangle2D... (by kraigballa)

by Ender210

could you tell me whats wrong?

I can't find whats wrong with the constructor and yet i get error invalid use of incomplete type 'class Employee' //Employee class definition/interface //co...

[7 replies] Last: oh i see thanks i'll keep that in mind from now on (by Ender210)

by Jsel

Trying to get started on an idea for a CS course

Hello, I'm trying to make a program that generates truth tables to assist me in my CS course. I know I could easily find one online but I want to make one mysel...

[5 replies] Last: [quote=Duoas]LOL, what do you mean by that? Recursive descent is sp... (by simeonz)

by mothmann

passing Pointers

Not sure how to do this right. a class called mClass. in mClass i have pointer of a cClass. and i also have a variable of bClass. class mClass { privat...

[2 replies] Last: YES thanks for catching that mistake. mClass will hold the variable... (by mothmann)

by fwhale

few errors I need resolved

Hi all, Creating a code and compiling in g++ that works as an inventory program. Pretty simple stuff. I'm getting a few errors/warnings that sound like si...

[5 replies] Last: "info" and "item_numbers" are private fields in the Inventory class. S... (by simeonz)

by busymaverick

Parameter Passing (1,2)

Hi all.. i have another question. I got this question in my university exam. List three ways of passing a parameter (or return value) in C++. there are 2 ...

[39 replies] Last: Here's an illustration of how I visualize the two categories. A sta... (by simeonz)

by victor vs

Access a cross referenced class function inside anoter function

Hi!, this is my first post in the forum and it's sad it's not an answer but a question, well... I'm starting with c++. My problem is that I have two cross re...

[2 replies] Last: thanks!... it was so simple I feel like a dumb... now everything works... (by victor vs)

by benzensulfonic

Concerning string::length and Array sizes

Hello all, I have a question about using the string::length function to initialize an integer array. I know that the value the function returns is a size_t of ...

[10 replies] Last: Um..... Well actually I'm having second thoughts about what the proble... (by benzensulfonic)

by yetanothertom

Advice on archiving projects.

Hello. I run a small, if not tiny, programming department, which has never had any processes and I am trying to standardize. One thing we've never done well ...

[2 replies] Last: Thank you very much! You're right; we don't need to be audited, but... (by yetanothertom)

by stavfot

2 string name tables to a 3rd table so as each name only once in the last table

hello! could anyone tell me how could i: create two string tables ,same size each,check them out to see if they have any same string element inside (in common) ...

[2 replies] Last: thanks a lot for your advices. i am sorry for the brackets but i am ne... (by stavfot)

by tarbeux

Totally screwed on comp science course! (1,2,3)

Hi everyone, im taking an online c++ course, and i have 5 more programs left to write that are due tomorrow by midnight! I do not get how to write these and am ...

[53 replies] Last: +1 rocketboy9000 (by PanGalactic)

by harishisnow

Signal handling in c++

Hello, I want to execute a function, say writestat() when the signal SIGINT (Ctrl + c) is pressed. How do I do that? Can you please help? Regards, ...

[1 reply] : Signal handling is covered by the header <signal>, detailed here: http... (by Moschops)

by angelliefling

Looping

Hi I am creating a loop to check if some elements in what I am working on are related to each other for(int i = 0 ; i < 4 ; i++) for(int j = 0 ; j < 4 ; j++...

[no replies]

by kraigballa

Do two circles overlap (intersect)

I found a formula that tells me if two circles intersect. I applied it to my code and with the circles that I have the answer came out wrong. I followed the for...

[4 replies] Last: Didn't your last question solve the problem of finding whether a circl... (by quirkyusername)

by airerdem

Sorting vector inside structure

Hi everybody, What I did is, I have 2 one dimensional vector which are inside structure. int numberofactivities; struct PopL{ vector<double> RK; //Fo...

[2 replies] Last: The id's resemble to the ordering, i.e. smaller id <=> smaller .RK val... (by onur)

by DBarzo

Factory method in Interface

Hi, I have an abstract class which defines an interface for an object. Now I need a factory method to create object. IMyObj.h public class IMyObj { ...

[3 replies] Last: It all depends on where you want the creator to go. But let's assume ... (by kbw)

by marembo

c++ inheritance

Consider this: class A{} class B : public A{} if i have this scenario, i am ok A *a = new B; B *b = (A *) b; what about this A a; A *...

[6 replies] Last: You can use static cast for this. static_cast is not typesafe. ... (by rapidcoder)

by deimon09

factorial,,,

hey guys.. i know how to factorial, my problem is how can i do when i used function call... int main() { int n; int factorial,i; cout << "Enter a po...

[11 replies] Last: now i know.. thanks!! :* (by deimon09)

by kraigballa

Determine if circle1 is completely inside circle2

I am trying to find some sort of equation to determine if circle1 is entirely inside circle2 (not touching). Here is what Disch said, however some people dis...

[2 replies] Last: Alright, I will test that out. (by kraigballa)

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General C++ Programming - January 2011 (Page 3)