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General C++ Programming - January 2015 (Page 11)

I have code that uses a vector, multimap,iterators and a struct. In freeing up my memory I have used the delete() for iterators and maps. Is that the proper way...

[7 replies] Last: ok got it, Thanks again! (by retroCheck)

by programmile592

(almost solved) Constructors/Destructors Student enroling Program (1,2)

Hi, I've nearly finished the program but there are some errors saying there are missing semi colons. However when I put them in I get so many errors :( Here is...

[23 replies] Last: The content of course::getEnrollYN() is wrong. Remember that a = 0... (by coder777)

by antonio17

transfer info from one file to another

I need to transfer the content from the file text.txt to file sort.txt . The data in the text.txt is "struct" (info about people)but the same data needs to be ...

[9 replies] Last: Ah, it is just a common for loop with slightly different C++11 syntax.... (by MiiNiPaa)

by Kubani

Problem with Sleep() when drawing an analog clock

Hi, The question says: Make an "analog clock" that is, a clock with hands that move. You get the time of day from the operating system through a library cal...

[5 replies] Last: I don't understand what you mean! (by Kubani)

by rachitsaxena

need help with array

like i enter a number of values in an array of power 10 and i want to see what value i entered in any place in a different window(like for library management sy...

[no replies]

by taguroFTW

Dumbass calculator using pointer doesn't work

I am making a calculator where I will input 5 array of numbers and calculate those numbers with pointers or whatever you call it. I am getting an error like ...

[7 replies] Last: Is this a homework assignment? If so, then please re-read the assignme... (by dhayden)

by Nezar

Effective C++

Scott meyers's Effective C++ 3rd edition, Item 25 : Consider support for a non-throwing swap. There's a piece of code with which the author is trying to expl...

[3 replies] Last: Objects of the same class can access each others private data, conside... (by tipaye)

by Irhcsa

Can someone simpilfy this

My friend and I are learning c++ and SFML together to create a game. We created something interesting and are wondering if there is a way to simplify what we...

[1 reply] : It's not really complex enough to start worrying about cleaning up the... (by Lachlan Easton)

by grndnatllvr

The resistor program problem

I have a lab that is do tonight and I am down to the last error and I am stuck, so any help would be awesome! I am using Visual Basic 2010 and the error is: 1>...

[3 replies] Last: Reading the ResistorClass code, it seems that tolerance is the toleran... (by dhayden)

by Jaydelay

Arrays/Pointers/Functions

I would like to pass the first array into both of the functions. Each function sorts the array. One uses bubble sort, and the other uses selection sort. However...

[1 reply] : int tmp_values ; memcpy(tmp_values, values_case1, SIZE * sizeof(int)... (by Konstantin2)

by yangxh

Why would I encounter "Undefined symbols" after using friend function?

I'm trying to implement a string class, most features worked fine until I changed the operator+ from a member function to a friend function(in order to support ...

[3 replies] Last: Thank you guys, I know the reason now (by yangxh)

by NickCullen

Part 1 of Template Data-structure Tutorial (Part2 Available)

Hey guys, Made a tutorial detailing template data structures aimed at intermediate programmers. Part 1 explains template classes, set up and adding and removi...

[5 replies] Last: Hmm that does sound interesting yet quite complex! I'm a game programm... (by NickCullen)

by tmason

LINUX/UNIX c++ equivalent of chdir()?

Hello, When programming under Windows VC++ gives you this nifty command to change the working directory of the application (assuming you include direct.h) ...

[1 reply] : So I answered my own questions: The chdir question: http://linux.die.... (by tmason)

by pieroborrelli

Detecting errors at run time

Hello, I'm studying C++ by two months using the book : programming principles and practice using C++, I'm on chapter 5 now studying error reporting. The author ...

[no replies]

by fafner

No viable overloaded '='

I'm writing a small linear algebra library to use with some OpenGL stuff. In my Matrix class I have the following two operators defined: Matrix4 Matrix4::ope...

[3 replies] Last: OK, thanks :) (by fafner)

by kumini02

multi level grep expression

I am having trouble trying to find an expression that will match a word that starts with "b" ends with "t" and contains "o". The following expression grabs some...

[no replies]

by retroCheck

multimap alphabetically ordering with char*

I understand multimaps are key ordered. I have no problems with ints but when I put my char arrays in they are not alphabetically ordered. I must use char array...

[2 replies] Last: Got it. Did as you said and everything working. Thanks. (by retroCheck)

by Aenn

Very annoying "can not build" errors plus one other error.

First off I should probably say the I use Code::Blocks as my IDE and compiler. When I run the following programs I get a message saying "this file has not been...

[3 replies] Last: This code here seems to work fine: http://cpp.sh/23sz http://cpp.sh/3p... (by kevinkjt2000)

by Kubani

Problem when using a protected function

Hi all, Please have a look at Graph.h file of here: http://www.stroustrup.com/Programming/Graphics/ There, both the void add(Point p) and void set_po...

[6 replies] Last: Thank you very much :) (by Kubani)

by lintlicker1001

rand() not working properly?

I'm trying to get a board game randomly initialized with either "X" or "O". For some reason it seems that my algorithm is causing all "X" to appear on the board...

[1 reply] : I recommend you turn up the warning level on your compiler. When I com... (by Peter87)

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