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General C++ Programming - February 2014 (Page 10)

Bank Simulation problem... error that I cannot find.

I'm doing the classic "bank simulation program" where we must simulate a Queue of customers in a bank, with x amount of tellers and allocate these customers to ...

[no replies]

by Aaron Vienneau

Bitmasks

What are bitmasks and what are they good for? I looked online a bit, and it looks like they're commonly used for "flag values", but I don't see why you couldn't...

[1 reply] : I give an overflow overview and fairly in-depth explanation of how t... (by Disch)

by gopal2773

Drwaing Problem

Hi, I am working in vc++ mfc. I draw the line using CDC *dc; the line is drawn successfully. But if I minimize or move the dialog box. The line is automatical...

[1 reply] : I'm no expert on MFC, but presumably there's some kind of redraw/repai... (by MikeyBoy)

by northfly

typedef a function pointer

the c++ primer books says the syntax is like this: typedef bool (*cmpFcn) (const string &, const string &); so that cmpFcn is a name of type that is a p...

[2 replies] Last: Thanks, JLBorges, that is very clear explanation! (by northfly)

by mora15

Using a Void Function for Data Input.

i need help modifying this program to Create a function that has the following prototype: void getInputChar(string, char &);. The function should display the...

[1 reply] : why would it be a problem? #include <string> // don't forget to includ... (by coder777)

by venkatacplpl

STL LIST::Random access

List<author*>catalog['Z'+1]; void includebook() { book*newbook=new book(); author*newauthor=new author(); newbook->name=getstring("Enter name of ...

[1 reply] : 'Z' resolves to a number: http://www.asciitable.com/ This List<au... (by coder777)

by kamikaze pgmr88

Can't change unique_ptr data with new information!

Hey yall I was hoping to get help with this program I have written. This is to create DVD objects and prompt the user for DVD information. This information is...

[4 replies] Last: Oh ok I got ya, appreciate the illustration too. Thanks again you've ... (by kamikaze pgmr88)

by donkeyshow

string iterator

I am trying to iterate through a file path to extract the file name. since the . separating the name from the extension is a unique character, i thought i woul...

[3 replies] Last: There is already a function that does this sort of things. The link be... (by bufige)

by makaveli23

loop wont work , college algebra help ASAP

when i put the end of file statement it keeps repeating the same input over and over as an infinite loop , why wont it read the rest of my data data file : ...

[1 reply] : you have an error. Tell more about problem (by ADNY78)

by EdFab

Question regarding char in Visual C++ 2013

There's something going on in Visual C++ 2013 (also in Visual C++ 2012, I believe) regarding the char type that I don't understand and is striking me as positiv...

[4 replies] Last: The thing is, is that that statement I pasted was on page 16 of the bo... (by EdFab)

by johnmerlino

How much milliseconds to loop through a for loop?

Given a for loop: int i; for(i = 0; i < 1000; i++) ; How many nanoseconds, or microseconds or milliseconds does it take for each iteration? And ...

[3 replies] Last: If you don't have to do a busy wait: #include <thread> #include <chr... (by JLBorges)

by Angeljruiz

Parsing a file

Hey all, I have this file: Fred,Karl,Technician,2010--Karl,Cathy,VP,2009--Cathy,NULL,CEO,2007 That is suppose to be structured, via a program im currently w...

[3 replies] Last: Here's the file that is supposed to be parsed along with the correct f... (by Angeljruiz)

by pixelpuffin

something blocking my paths

after trying many ways to get paths to work for a few GUI libraries on a few compilers i have continually found that paths don't work on either of my two comput...

[1 reply] : Can you show the command you are using to compile the libraries? (by Smac89)

by makaveli23

read data from file ; need help ASAP

i have this program but it will only read the first two values of my data file and the second value it reads as the first variable C , how do i fix this // ...

[no replies]

by bbb718

Help with intro college assignment

Hello All, I am confused on a couple of things in this assignment I will copy and paste it and ask my question after the instructions Write a complete C++ pr...

[8 replies] Last: Can't you just do an if statement? if( GamesRemaining >= Won ) ... (by giblit)

by AceDawg45

How would you make a paint application?

I am pretty far from this, especially since I don't know windows (enough of it at least) or anything... but I am just curious on how you would do something like...

[no replies]

by closed account 9i3hURfi

how can i make my program reset without spamming?

what the title says, when i use while(true) i press my hotkey to add a certain amount of points, it spams it really fast and adds a ton more than i want cou...

[2 replies] Last: it worked thank you so much :) (by closed account 9i3hURfi)

by frank1670

Designing classes

Write your question here. I am having trouble with the following problem... Design a class box that defines a box on a floor. A box has a number and an (x,y) ...

[no replies]

by closed account 9i3hURfi

need help, how to add to a value

what im trying to do is, in my game lets say i have 1000 points, im trying to have it so i can add 750 points everytime i press a key, im having a few issues do...

[8 replies] Last: thanks for the help guys. i got one on one help from another guy, ever... (by closed account 9i3hURfi)

by devonrevenge

need help with maths, scroll bar issue

So for a re-usable class with a scroll bar in it I have two integers, I have height, that's the vertical length of the scroll bar, and position, that's the posi...

[4 replies] Last: yep :) like a dream, I made all the bits and decided to deal with the ... (by devonrevenge)

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