[c++] Forum Topics

Hi everyone :) At the minute I'm working on some stuff learning c++ and was wondering if ayone could offer some advice... Say I have a pile of objects that need to be created (for example say, a Log object, XML parsers object, and a command line parser object). In …

Hi, When writing a little code for showing ASCII characters in C++ and C, the only difference is when I do it in C++ I print until char ( or integer ) reaches value of 127, and in C I print until it reaches 255. Why it's like that? Thanks!

So, I'm doing a program that is suppose to convert a sentence into pig latin. I figured I would make a function which would handle the individual words, then I'd work on breaking up the sentence into individual words. I keep getting the error that my String Subscript is out …

I made the following program, but now i am getting an error. I searched for error almost 3 hours but worthless. I want to discuss the problem with you people. I am getting the error: [B] expected class-name before '{' token[/B] #ifndef ASKDIALOG_H #define ASKDIALOG_H #include <QDialog> #include "umerwindow.h" namespace …

Hello All, i have written a program to read data of Persons from a file and fill the data into a dynamically created array of Persons. i am geting error in line 28 plz help the 1.txt file can be assumed as:(first line is the no of persons, then names …

int findLowest(int arr[]) Is passed the five accident totals as an array of ints. It determines which is the smallest and returns the subscript for that array element. The main function declares two arrays, a string array containing the names of the boroughs and an int array which will hold …

Hello, I would like to know how you can keep running a function over and over again, so that it can keep adding the stored value. For example If Bob uses a program to purchase a ticket, lets say that Bob purchases 5 tickets out of 55 tickets (There's only …

Hi, how could i check is a number an int or a float?

I wanna convert an integer to a character then i will store it later to the index of a c-string...... something like... int res=123 then it will be putted in.... var[0] = 123 where in var is a cstring, and here 123 is now a char type..... here is what …

Hello all. i might have posted about this recently but, i have done much research and refined my research and am close to a solution. I am trying to use the click of a ahref link with a variable tacked on the end, to send a message to one of …

Hi, I'm trying to create a thread for running some tasks. I copied the code from an old console application (which compiles fine), but can't figure out why it's not working now. I have searched for the error code and came across this suggestion: "Are you passing the name of …

Hello, On lines 70 & 75, the word [B]col[/B] is marked as a syntax error. When I hover my mouse over, it tells me that [B]Error: expression must have pointer-to-object type.[/B] Why am I getting this error and how do I fix it? This program prompts & reads the file …

Hi all, I'm having some troubles practicing linked-lists: the problem calls to implement string as a linked-list of chars. So I created a new class - mystring and defined building function, show(), and also destructor. The build and show works correctly. I get the exact same string I sent as …

The idea is to get a sentence of words and then scramble the middle letters of each word without altering the position of the word in the sentance. So for example, the user inputs: Programming is very interesting! the output should be: Pogrmarmnig is vrey itenrseitng! So far, i have …

Sorry the subject is hard to read I had to fit it all in there briefly but so in this external function getNumAccidents I need to read in the user-input number of accidents for each NYC borough to be stored in their respective array places, but also validate the input …

Alright, I understand some of the basics of big O notation, but I have a test coming up in a few days and I need a bit of help. I understand that if you have a loop that iterates i*=2 then it would run lg(n+1) as log base 2 and …

HI, I recently joined the forums (today) and i would officially like to say hi. [COLOR="Green"]HI[/COLOR] For my question: [COLOR="Red"][B]Are there any books,websites or tutorials that use a moderate vocabulary that teach C++?[/B][/COLOR] Thanks for the help in advance. BTW is there a rules page? _______________________________ Bye

this runs but with unexpected results,why?I insist on using cin.getline and I was hoping if statement will execute, however the else statement is da one dat executes. As for the question I think the first answer is correct char name[256]; cout <<"enter name"<<endl; cin.getline(name, 256); if (name == "My boy") …

I'm trying to make encryption program but when i run the program it gives me this error: Debug Assertion Failed! Program:...nts\visual studio 2010\projects\encrypter\debug\encrypter.exe File:c:\program files\microsoft visual studio 10.0\vc\include\xstring Line:1441 Expression: string subscript out of range For information on how your program can cause assertion failure, see the Visual C++ documentation …

From A C++ beginner. I have written a class that splits the first list into 2.I used iterators to accomplish it. Now I am supposed to create a new method that splits the input chain ∗this, destroys the input chain and uses its nodes to construct the chains a and …

Hi all, I have 2 forms, form1 is for entering Name, ID and School. I want all the data i enter in form1 to show in a table in form2. Can someone recommend which way is best of doing this? Many Thanks

hello :) i'm using MFC SDI, & i'm less familiar to it. i need to know, 1: i have found a way of printing a string as [CODE]pDC->DrawText( " Task still pending!!! ", &rect , DT_PATH_ELLIPSIS );[/CODE] but i want to know, how can i print a 2D-Array in MFC …

Hi All, I am trying to convert the following C++ code to C#. pExportDir = (PIMAGE_EXPORT_DIRECTORY)GetPtrFromRVA(exportsStartRVA, pNTHeader, pImageBase); [CODE]template <class T> LPVOID GetPtrFromRVA( DWORD rva, T* pNTHeader, PBYTE imageBase ) // 'T' = PIMAGE_NT_HEADERS { PIMAGE_SECTION_HEADER pSectionHdr; INT delta; INT delta2; pSectionHdr = GetEnclosingSectionHeader( rva, pNTHeader ); if ( !pSectionHdr …

Hi all, I want to store the result of a SQL query into some kind of container. Typically, a result consists of several columns, each of which has different types - depending on the query. E.g., 'select productname, price, stock_count from...' leads to 3 result columns: char, float and int. …

[b]I want this code to call generic catch block whenever any special character(eg. !,@,#,$,%,&,*, etc) is enetered in numerator or denominator. So what code should I add to this. Any help would be appreciated. Thanks. [/b] [code=c] #include <iostream> using namespace std; int main() { try // generic catch block …

I am getting ready to write a programming competition on Tuesday (the Canadian Computing Competition) and I remember that last year it said that only standard libraries can be used. I was having trouble deciding which libraries are standard. I ended up using windows.h and when I suddenly realized that …

Hey all, I am working on my first C++ prog and I'm having an issue on my output. I compiled the code ok but when i try to execute, the output comes up with weird numbers and letters where it is supposed to display the "photos in"[CODE]// Name: Danny Delgado …

Hi, I am learning templates so I have one question for this code: [CODE]template<typename T, int Number> class Data{ T Array[Number]; public: T& operator[](int); }; template <typename T,int Number> T& Data<T,Number>::operator[](int element){ return Array[element]; }[/CODE] I wish to create specialization for that class template, for any random data type, but …

I have following header file defines test2.h ----------> header file template<class T> class temp2 { public: temp2(); virtual ~temp2(); }; test1.h ----------> header file template<class T> class temp1 { public: temp1(temp2<T> (temp2<T> *temp2ptr); ~temp1(temp2<T> (); protected: temp2<T> *tempptr; }; test3.h -------------> header file class test3 { public: test3(); virtual ~test3(); …

Hi all, I am new to programming and having been experimenting various codes recently. I have managed to link 2 form so that when i click a button on Form1, Form2 opens. I am using the code [CODE]Form2^open2 = gcnew Form2(); open2->Show();[/CODE] This codes work fine. Is there a way …