Beginners - C++ Forum - November 2009 (Page 4)

#include <cstdlib> #include <iostream> using namespace std; int busca_linear (int v , int dim, int num) { for (int i=0; i<dim; i++) { ...

[3 replies] Last: Remove the } you have before those lines (by Bazzy)

by davinci

QString::toWCharArray error LNK2019

Hi! I'm fairly new to programming in C++ (only done Java before). I try to read data from a *.dat file. As this file is selcted by the user via a GUI(done wit...

[11 replies] Last: Goto the project settings in VS and uncheck the Treat wchar_t as a bui... (by jmnemonic)

by NickPaul

General Programming Q - Is this bad?

Is declaring a variable in a loop bad? I'd imagine it is bad practice, but does it have implications on the performance of the program? Every time you re-define...

[1 reply] : 1) It's not bad and it shouldn't slow down the program 2) See http://... (by Bazzy)

by NickPaul

Overloading Operators

(I think that is what it is called)... I'm currently building a matrix class and I'm trying overload the * and + operators. See some code below: cl...

[7 replies] Last: Excellent! Thanks so much :) Nick (by NickPaul)

by acct456

Two Dimensional Arrays.

I have to write a program that displays ticket prices to users in a 9x10 grid. The user is then asked to pick a seat or pick a price. They also have the opti...

[3 replies] Last: You can use cin >> int >> char >> int so that the two ints would rea... (by Bazzy)

by Progesco

append node to list

Please help me find out the error in this code Thank you #include <iostream> using namespace std; class Node { public: int data; ...

[3 replies] Last: thank, it worked (by Progesco)

by joeriMJ

reading from file problem

Hi, I have the following code to read two lines of a file and then put the data into variables of the object that called the function. void Artikel::read...

[1 reply] : What is m_pnaam? I don't see what could it be other than a char*, but... (by hamsterman)

by lilydjwg

non-local function...uses anonymous type

I have the following code: #include<cstdio> typedef struct{ int exp; }MyType ; void func(MyType a){ return; } int main(){ return(0); } W...

[4 replies] Last: The links help a lot. Thank you. (by lilydjwg)

by spazamatic2

Structures and Records

I am writing a program to be able to compare birthdays of 2 people to determine who is older. I need to use structures and records which i am very unfamiliar wi...

[3 replies] Last: Thank you! That helped so much. I am going to go give it a try and see... (by spazamatic2)

by janderz

if statement problem

Hello, if (choice != choicea || choiceb) { do something } i would think this logic would work but it doesn't. The point of the app is to get a va...

[1 reply] : I'm no expert but I can diagnose some basic errors: You cannot just r... (by tummychow)

by akayrak

Same pointers but not same values

i have this in list class; public: obj_node * cur_x; void insert(obj_node * a, Object b) { obj_node * p = new obj_node; p->valu...

[no replies]

by TJohnston

Adding characters to the front of strings

Hi Within my program, I need a string array to be 8 characters in length. The string, when input, is not necessarily 8 characters, and therefore i need to ad...

[5 replies] Last: Problem solved, thanks. (by TJohnston)

by Vit

Class variable problem

I've started working on a game. I'm pretty new to C++, but not to programming. Anyway, I have separate classes for characters and maps. I've defined the map cl...

[3 replies] Last: Yes, you could do that. Define the class in the header file and imple... (by Mike W)

by ansline6788

word count

I'm writing code to keep track of every word in a file in a sorted list and how often it occurs, print out each word and how many times it occurs, total words, ...

[2 replies] Last: Please use [co de] tags (by Bazzy)

by Progesco

Sort object in a list

I want to write a function to sort object in a list (don't use STL at all), but I don't know how to use loop in this case. Please help me

[3 replies] Last: Elements can be swapped, given suitable iterators. (by kbw)

by robezy

Doubt about stack with head and tail pointers.

Hi, I have a stack with head and tail pointer. My destructor is as given below. Stack::~Stack() { while(head) { Ele...

[3 replies] Last: Classically, there are two major heap management errors. Not freeing ... (by kbw)

by DBarzo

Inherits from abstract classes

Soppose to have the following situation: class IBase { }; class IA : virtual public IBase { virtual void methodA() = 0; }; class IB { virtua...

[2 replies] Last: You're right! Thanks. Daniele. (by DBarzo)

by sam16

Open Directory and reading Files using C++

Hi I have C++ code to open the directory and read all the files in that directory. It works fine if i specify the absolute path but not working when i specify r...

[1 reply] : Probably either because the function can't accept a relative path, or ... (by Disch)

by award982

How to get time and date from system

Hey! Can someone tell me what function is for getting system time for my program? I found this: http://www.cplusplus.com/reference/clibrary/ctime/ bu...

[1 reply] : It is plenty of instructions and code examples http://www.cplusplus.c... (by Bazzy)

by gcampton

Can't fix this error...

I have a problem with my assignment originally it was working, but as I tried breaking the cmd line args into a second class it broke, so I put a method back in...

[2 replies] Last: ahh, thanks.. I took out the constructor args, forgot to delete the br... (by gcampton)

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Beginners - November 2009 (Page 4)