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General C++ Programming - January 2013 (Page 6)

Question about pure virtual functions (abstract classes)

Hey, Im still trying to figure out when I should use pure virtual functions. On the one hand, "TOY" for example should be an abstract class since theres no su...

[4 replies] Last: Yes, and this is the start of your interface to your Toy classes. As I... (by TheIdeasMan)

by Lucretius

String issues

Ok, I'm having a few problems with strings, mostly string functions saying they're not able to compare a string with a char pointer. int main() { int counter...

[2 replies] Last: new flight <flightnumber> <seats available> example new flight 207 64 ... (by joneele)

by andigirlsc

12 month interest summary

I am trying to print out a report for a 12 month interest summary. So far, I cannot seem to get the ending balance for the previous month to be the starting bal...

[no replies]

by gtm

game design, framerate architecture.. (1,2)

So I've been mulling this around my head lately and a post earlier got me thinking further. I had planned to have an infinite loop in main() which contains a...

[34 replies] Last: I think you are confusing the concept of a header file's "include guar... (by Ogoyant)

by ngrv

Friend class usage

Hey Guys, Can you please tell me how common is the usage of friend class in C++, particularly in finance industry? I am learning C++ and want to avoid on ...

[3 replies] Last: Finance is large. The people who program order management systems, gua... (by Cubbi)

by ajh32

Re: please I need help with...

Why is it that we get so many people on here with pleas for help with their homework assignments? When I used to get homework/assignments, it was always based ...

[2 replies] Last: I am with ajh32, you learn much more from trial and error that by some... (by Script Coder)

by ngrv

Design Patterns

Hey Guys, I have learnt C++ and understand what design pattern means. Basically they are nothing but just tricks to solve a known problem. I now want to f...

[1 reply] : Forget the patterns, just do it; and improve your design on each itera... (by kbw)

by sadekiegordon

Help with time function in c++!!!!!!!!

#include<iostream.h> #include<conio.h> #include<stdio.h> #include<windows.h> #include<stdlib.h> #define SIZE 100 /*int compare (const void *elem1, cons...

[1 reply] : This code : n1=rand()%111; //generate numbers between 0 and 50 gener... (by Smac89)

by arms4

fix my array error!!

instead of showing the array number designated my output all became N=0 and i declared N=0 because would get the error'without initialization' if didn't do so. ...

[5 replies] Last: nvm..... i realize my own mistake..... my mindset thought programming ... (by arms4)

by Skynet

Stuck in an infinite loop

I have a new problem. For some reason, my code gets stuck in an infinite loop here on pop which I temp made as a transverse function to ensure my stack is worki...

[5 replies] Last: Now I see how you did it and I see why it happened the way it happened... (by Skynet)

by Donatas

Need code, will pay $ !

Hello, I need two codes which would work on XP/Vista/7 1. code runs http://example.com 2. code pushes ctrl+alt+z combination I need them asap, can pay...

[no replies]

by RichMo

GDI+ Rotate rectangle about its center

Hi, I'm trying to simply rotate a shape about its centre or a specific point but I can not seem to get the right result. My code is below... Graphics g(...

[2 replies] Last: Yes, sorry, typo. I think I sorted it now. SolidBrush brush(Color(200... (by RichMo)

by iandroid

Problem with strcmp

Hey, i have a little problem .. when the input == nop is comes a error on my screen and it returns with Process exited with return value 3221225477 can a...

[2 replies] Last: thx (by iandroid)

by medo sayed

find the prime numbers between two values

i did a code that determine if the number is prime or not, and i have to do a one that finding the prime numbers between two variables . the first code: #...

[4 replies] Last: #include<iostream> int main() { using namespace std ; int m... (by JLBorges)

by raaj5671

Variable being used without being initialized

#include<iostream> #include<iomanip> #include<fstream> #include<string> #include<cmath> using namespace std; int studentdetails_mean(); double standar...

[11 replies] Last: tq very much for the help... now my standard deviation code is not w... (by ajh32)

by Donatas

Simple program

Hey guys, I am very new at c++ programing and I need a simple program, maybe you have the code I need: "My.exe" program opens C:\iexplore.exe every 3 minu...

[3 replies] Last: Give up kid (by gtm)

by xzbit

mix c++ and assembly

in masm i can do this push 0 push offset title push offset msg push 0 call MessageBoxA in mixing c++ and assembly i cant char msg = "Hello Worl...

[5 replies] Last: Read about which assembly dialect does your compiler support. (by MiiNiPaa)

by Skynet

Having trouble with linked lists

Hi, I'm fairly new to C++ and wanted to know if you all could help me with something here. I have this bit of code that I'm certain works but there is a problem...

[17 replies] Last: Cool, I have actually made progress since then but now I have a new pr... (by Skynet)

by jdowning

Simple buoyancy program (errors?)

There are errors on lines 25,26, and 39. Could someone please help? Thanks! :) btw, this is not the formatting I have (i.e. it's not all aligned on the left)....

[4 replies] Last: Try } while ((strcmp("y",answer.c_str())==0) || (strcmp("Y",answer.c_s... (by gamemanj)

by MewEight

Pausing the loop till keypress

Are there anyways to pause the loop until either LCONTROL or RCONTROL is pressed? Are there alternatives to stopping LCONTROL and RCONTROL increasing or decr...

[6 replies] Last: Thanks. Will give it a try to understand, thanks for the help! (by MewEight)

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