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General C++ Programming - October 2010 (Page 10)

hello folks of the C++ forum :) I'm having some trouble understanding the concept of a friend operator. *without* placing friend before an operator declarat...

[4 replies] Last: Hmm ok, thanks guys! (by xander333)

by mashhur

Garbage Collector in C++..

Hello guys, I wanna ask a question related with memory management. I many times allocate memory (for ex. int a = new int) but don't delete them in a C++ Class...

[4 replies] Last: Are all the functions declared correctly inside the class? Cause I see... (by nickburress2k2)

by s51563946

Is it a good idea to warp the new and delete with a macro?

In many famous libraries and frameworks, they encapsulted their memory alloctor and dealloctor, and replace the original c++ new and delete operator with macr...

[no replies]

by RC325

Copy Constructors & Abstract Classes

Hey all - Hoping you could help me understand something about copy constructors - specifically how to declare them. Lets say you have an abstract class wi...

[6 replies] Last: When I use one of your examples as a template for the classes I am try... (by RC325)

by ultifinitus

Multiple Inheritance and Function Problem

Okay so I'm having an issue with my game, nothing big, and I've patched it haphazardly. I would very much like to understand why it doesn't work though. The ...

[4 replies] Last: Oh wow... I apologize for wasting your time... I feel like an idiot. T... (by ultifinitus)

by BushraSQU

how can I determine the first day in the calendar

Hi I want to know how I can make function that determine the first day in the calendar (Hint: 1/1/1500 is Monday)

[2 replies] Last: http://en.wikipedia.org/wiki/Calculating_the_day_of_the_week Edit: ... (by Athar)

by nithiya

Why the program is not looping?

I write this program to open a text file(example.txt) in a csv(output) file with a variable interval which is another text file (Length.txt). the program was su...

[1 reply] : http://www.cplusplus.com/forum/articles/16853/ (by Athar)

by gregarion

Problem with random numbers

Hey guys , as from what i read up , the function srand() and rand() are able to give u random numbers if they are being run one time only. What i am trying to d...

[4 replies] Last: Actually, you should use random_shuffle, because that's exactly what i... (by Athar)

by halopower67

Stuck at read/write from file to file

Hey guys, i am currently working on an assignment of an intro to c++ class, and i am being asked to read from a file called Bands.txt which has a list of band i...

[7 replies] Last: of course you will output the same line, if you aren't change it whi... (by ne555)

by rezen85

how to read textfile using arrays

hi,i am trying to use arrays to read text from a file on another location before sending it out byte by byte but i not very familiar with using arrays for my co...

[no replies]

by arcken

encoding

i have used loaded files before but not like this, can someone help I am trying to decode a file which is loaded by inFile.open the message is coded to wh...

[1 reply] : nevermind didn't see that there are things like isupper() and islower(... (by arcken)

by dravetodd

Void convert assistance

Hey, I was trying to write a program that converted inches to cms and pounds to kg but I don't really know what to put into the void convert at the end. This ma...

[1 reply] : Please edit your post and put the source inside code tags. (by PanGalactic)

by Mish

Operator overload

Hi, I would need help for a very specific thing. It might not be very clear, but I'll try to do my best... I've got a class, and I want to use the subscript...

[6 replies] Last: Well, I used << and >>. I know the length of the buffer, so two poin... (by Mish)

by anil vishwkrma

function

what is nested function ? and what its use?

[1 reply] : http://lmgtfy.com/?q=nested+function&l=1 (by hamsterman)

by hotpil

static functions

I need make something like following: double CallF1(double (*fun)(double), double y) { return (*fun)(y); } class A { double a; public: static d...

[3 replies] Last: http://www.cplusplus.com/reference/std/functional/mem_fun/ (by moorecm)

by FrustratedSE

Whitespace in Password Masking.

Newbie here. I cant seem to get the Space key working. The program still prints the space key as an asterisk. Here's my code: #include<stdio.h> #include<co...

[4 replies] Last: Sorry for that Duoas. It is just a sign of respect. Never meant that I... (by FrustratedSE)

by eparzy

State machine prog

Hi, I recently started to write a state machine, following the guidances from the book "programming game AI by example", from Mat Buckland. A few months ago I...

[2 replies] Last: Hey, thanks dude! The trick was to forward declare the State class i... (by eparzy)

by Bonkers

Where to begin again

I'm currently getting back into C++ programming after a large gap and many changes in technology since my glory days of Motorola 68000 assembler code with the s...

[2 replies] Last: Just install a bunch of IDEs and decide which one you like. If you rea... (by Darokthar)

by GhostServer

Trouble With a for Loop

Thank you for looking at this. So what I think I'm trying to do here is Ask for an input of a how many times that number is going to be compared to Coun...

[4 replies] Last: It's hard to follow what you are trying to accomplish here. One reason... (by davgarza)

by natie

deleting lines (??)

I want to ask something else. If I have a program which displays only lines (which are inputs from the keyboard), I mean for example smthng like this: 1>blah...

[3 replies] Last: LittleQuick++, if he or she were an l-value. Don't use system... http... (by Albatross)

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