General C++ Programming - C++ Forum - January 2012 (Page 6)

StreamWriter output coming out as 'true'

Hi, I'm having a problem with using the streamWriter to write to a unicode file. Code as follows: for(int i = 1; i < 1018; ++i) { std::wostringstre...

[3 replies] Last: The System.String class of .Net is 100% Unicode. Or better said: Al ... (by webJose)

by mahinkhan22

Random number problem....Its not random

What am I doing wrong! #include<iostream> #include<vector> #include <cstdlib> #include <ctime> #include<windows.h> using namespace std; class Chairs ...

[1 reply] : Solved it void setStatus() { int rand... (by mahinkhan22)

by awsdert

wxWidgets related...

I'm having a mind block on this one so I thought I'd ask if anyone can tell me what I did wrong. DBI::DBI(void) : wxTreeItemData() { afr = 0x00; afi = 0x0...

[1 reply] : I figured out why it was complaining, it was to do with how I created ... (by awsdert)

by awaisahmad

file separation

I am using Dev C++ as a student, know theory more than practice, I want to write a program for making classes and their objects. But I don't know how to save he...

[no replies]

by Abhijit Kulkarni

Deallcating built in data types

What is the way to deallocate the built in data types?? Example : class A { private : int a,b; } In main--> A a1=new A(); Then how to deallocate t...

[3 replies] Last: No, you can't do that. A call to delete t where t is of the type T* ... (by aquaz)

by Maggi Iggam

Getting Wrong answer ?!?!

I believe my solution is correct , but dont't know why the site says that my answer is wrong , maybe you can help . Here goes the question :- Problem 2: The Le...

[14 replies] Last: Oh , i got it , what i was doing was not what was asked at all ! Than... (by Maggi Iggam)

by hogarth45

New thread created in class problems

Having problems trying to figure this out. New to multithread programming. class Game { HANDLE hcol ; unsigned int WINAPI find(void *); int threadhand...

[4 replies] Last: square temp - OMFG! (by Burz666)

by Nonlin

Wont't ask for userinput

Also I think certain variables aren't being initialized as well mainly 'b'. #include "stdafx.h" #include <iostream> #include <cmath> #include<iomanip> using...

[2 replies] Last: lol thanks so much. Yeah I meant that don't know why I multiplied them... (by Nonlin)

by Hunter Allen

C++ Multilingual Programming

Hello everybody, I have always wondered this. How possible is it to combine code written in Java with code written in C++? Is it possible to make a class in...

[3 replies] Last: For JNI, you just need a Java SDK. Which I think is usually called a J... (by JLBorges)

by blueeyedlion

How do I define the "<" operator for list iterators?

I'm trying to make a map of list iterators and I have discovered that that requires the < operator defined. I intend to have it compare the address of the cont...

[9 replies] Last: You need to define the variable with a static storage duration (put th... (by JLBorges)

by Aquila

Returning the minimum of a vector

Hello all. I have the two functions below and their corresponding main function. Function 1: int maxofVec(int myarr ) { size_t len=sizeof(myarr)...

[2 replies] Last: Thank you and well said @shacktar. (by Aquila)

by Brandon Lashmet

Extracting Data From Web Page

I have a program with 6 variables (the data type of each is "float"). The value of these variables is entered by the user. However, I would like to extract th...

[2 replies] Last: Thanks, but I'm not sure what link to follow on the page you provided.... (by Brandon Lashmet)

by brobird

prime numbers

I want to create a program to decide whether is number is prime or not, and i tried with this code, but my program does not seem to go into the while loop and c...

[3 replies] Last: int main(){ bool is_prime=true; int num; cin >> num; for (i... (by exiledAussie)

by AllKeggedOut

C++ Question... Storing data in a .txt?

Hello everyone! I am creating a Money Management program in C++, and I have a question. I have: int AccountValue; Now, currently AccountValue is changed ...

[2 replies] Last: Also, use code tags. (by xander333)

by mark103

An unhandled exception of type 'System.NullReferenceException' occurred in .exe

Hi guys, I have a little problem with my program. I ran the debugging and when I clicked on a button, I get an unhandled exception error of System.NullRefere...

[no replies]

by closed account 10oTURfi

error C2079: ... uses undefined struct ...

Long code short: class Creature { Creature(/*...*/) {} }; struct Enemy : public Creature { Enemy(/*...*/) : Creature(/*...*/) } class Comb...

[7 replies] Last: I dont' see it directly, but I'm willing to bet you have a circular in... (by Disch)

by orangeapple

Small problem in explaining a line

Hi people, I wish to ask how would you comment such line. What I was going to right was that it is defining a name for the text file. Which is the reason I have...

[3 replies] Last: or it is just the semi-colin? (by orangeapple)

by orangeapple

can anyone help me Removing letters from Alphabet, depending on which letter is entered.

Hi people, I have the alphabet which has 26 letters in a string and I wish to eliminate the letters one by one, by entering the letter I choose to press from...

[5 replies] Last: Hi people, thanks for your prompt replies. You were so helpful. Thanks... (by orangeapple)

by aymank1985

Pointers issue here , hope someone can help

Hi , I have a pointer issue here , cant figure it out . int * readFile(){ int* array1 ; int arraysize; int i=0; ifstream myfile ("input.txt"); ...

[11 replies] Last: blue , thanks for that , i will look into it . hamsterman , thanks fo... (by aymank1985)

by Henri Korpela

Templates & Inheritance - Danger of Ambigiousness?

Hi, folks! I was programming & eventually ran into a situation, which isn't very self-explanatory for me. Allow me to demonstrate: template<class T> class Fo...

[2 replies] Last: Wow, simple problems have simple solutions. Thank you, Peter87 ! You... (by Henri Korpela)

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General C++ Programming - January 2012 (Page 6)