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General C++ Programming - January 2012 (Page 13)

I would like to write a C++ program to communicate (via rs232) with a temperature oven. I will be using a USB to RS232 adapter. I have never done any serial com...

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by mach1threat

Barcode reading from TIFF file (Optical Barcode Recognition)

I am trying to start in the right place and I've done a lot of searching and reading on this forum. I have searched for the topic a lot over the last couple wee...

[no replies]

by closed account zwA4jE8b

virtual destructors

Can anyone tell me the proper way to implement a virtual destructor? any maybe even why it is the way it is. I read that the derived objects destructor will a...

[9 replies] Last: sweet, thanks guys! (by closed account zwA4jE8b)

by ddre20

limiitng float value

i am writing a program that uses times but for times i am entering them as float values HH.MM obviously the problem will come if cin a number like 15.75 what ...

[1 reply] : It is probably better to not use float for this because they are not a... (by Peter87)

by Napster11

Files

What is the difference between source files and object files?

[2 replies] Last: Source files contain your source code as you write it. An object file ... (by Jessy V)

by BenShen

c++, SDL- Method/Function issue

Hey there. I am making this 2D game, like tiggy. You must catch the other guy. It is two player either on the same keyboard or AI. I have trouble making the CP...

[1 reply] : You forgot to put () after the function name bot.move () ; ... (by Peter87)

by bluecoder

setting default value for the function

Hi, I am trying the set the default value of the function of the class. but this code gives me error . I am not able to find how to set the default value of t...

[4 replies] Last: Thanks naraku9333 , and Moschops ,, for your tips it worked . . cheers... (by bluecoder)

by ciphermagi

Leak in this function: How do I get rid of it?

Okay, I'm having trouble with this function. Basically it's supposed to read in a bunch of stats and names and assign them to a list of Character objects. Now t...

[2 replies] Last: I'm trying to make this code friendly to the C++98 so that my partner ... (by ciphermagi)

by Zanje

If-else To Switch Statement

else if (menu =='B' || menu == 'b') { printf("\n\nGuessing Game"); printf("Choose from 1 to 10"); printf("\nEnter He...

[7 replies] Last: The compiler needs to know the number of a switch statement before it'... (by closed account o1vk4iN6)

by ResidentBiscuit

Self-modifying programs

So, for a course I'm in I have to partake in a discussion on how self-modifying code is possible in the von Neumann architecture, and what implications it has a...

[14 replies] Last: Yea it's more of modification, that during runtime, may be unknown. Li... (by ResidentBiscuit)

by Ryan Wilson

Vectors capacity question

Well I've been learning about vectors in this C++ book and then came across the memory reallocation and deallocation process for them but I don't really get how...

[7 replies] Last: > it massively reduces peak memory usage. Yes. During the buffer res... (by JLBorges)

by iHateBooks

Does this book suck? Or just me..

Hi, I've been reading C++ without fear (2nd edition) and at the beginning it's proved quite resourceful and helpful. However at later exercises it started to be...

[2 replies] Last: Last question first: good C++ books? Maybe you should use sites such a... (by Catfish)

by Abhijit Kulkarni

pionter to 2D array..??

int (*p) ;/* Syntax for pointer to 1D array which can point to any integer array of size 5. */ I need to know what is the syntax of pointer to 2D array.. I...

[2 replies] Last: Thank u.. (by Abhijit Kulkarni)

by barlongo

help somebody..

Input: Weight: 202 Output: 100 lbs: 50lbs: 10lbs: 5lbs: 1lb: 202- 2 0 0 0 1 How to make this a program? Help.

[3 replies] Last: You should at least think of an algorithm, then only we will help you ... (by SameerThigale)

by mrmodest

C++ Server sending message back to client simple solution?

Alright, I am writing this server for my own good and I am not doing it for school or anything like that. It is pretty simple and it works great with no problem...

[5 replies] Last: I am reading about the lacewing library now but I usually have trouble... (by mrmodest)

by sandsnip3r

Visit website and enter ID and pass

So the language I know best is C++, I've completed 1 class on it in college, and in a second now. We just started classes in my current course. We covered just ...

[5 replies] Last: Hi, I found a solution to your problem: Visit website and enter ID an... (by codekiddy)

by emjei

Linked List

i'm having a trouble about my program. it is having an unhandled exception. here it is. //MyLinkedList.h #ifndef MyLinkedList_h #define MyLinkedList_h ...

[4 replies] Last: ohh. thanks. (by emjei)

by Bobu

Reading in specific data-file via C++-Strings

Hey, I'm feeling I've searched the whole net, without finding any solution to my problem... I want to read in a data-file, where the data is formatted lik...

[3 replies] Last: Thank you very much for your quick replies!! Everything works fine!! ;... (by Bobu)

by codermonkey

Creating a Login Database

So basically I have been trying to create a Login Database in C++, in which you must register first. So to do that I think I need to take the two string values,...

[4 replies] Last: Well, if you're working with webpages and online stuff, then look up S... (by Stewbond)

by KaraPardue

Calculating grades with Decimals

Alright, this is a refresher assignment for my Advanced C++ class, and I have the program doing everything it is supposed to, except it is not recognizing the c...

[3 replies] Last: I tried that before, but forgot to change one of the variables to the ... (by KaraPardue)

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