51,593 Topics
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| | Hi, I need to store each path in a tree as a row in a two dimensional array of size #of paths x N. I couldn't find the appropriate indexing scheme for the array. Any ideas would be appreciated. Thanks, |
| | Anyone here can help me with Boyer Moore algorithm? Im study lots of code and example for couples of hour already and yet i cant figure it out how does the Boyer Moore algorithm works.. It really too complex for me .Can anyone give me a sample code or perhaps … |
| | I'm new to C++ programing. the compiler can't find "atlstr.h" to include. I searched alot for this file but I couldn't find. Please, and body knows how to find it , tell me ASAP. |
| | Hey I have problem... If i save playlist with 1 item then it work but if i have more then it bug. i can start debugging. [CODE]XmlTextWriter ^textWriter = gcnew XmlTextWriter(dig->FileName, nullptr); textWriter->WriteStartDocument(); for(int i=0; i < listBox1->Items->Count; i++){ textWriter->WriteStartElement("track"+ i); textWriter->WriteStartElement("url", ""); textWriter->WriteString(listBox1->Items[i]->ToString()); textWriter->WriteEndElement(); textWriter->WriteStartElement("name", ""); textWriter->WriteString(listBox2->Items[i]->ToString()); textWriter->WriteEndElement(); textWriter->WriteStartElement("start"); …  |
| | Hi, I’m starting out on C# and need some guidaance. My goal is to develop applications that will control/take measurements/gather data from RF lab instruments (signal generator, vector network analyzer, spectrum analyzer). My issue is to what commands are used by C# to actually talk to the instruments? In my …  |
| | Can anyone help me solve this problem? pass by reference/value and file i/o should be used.. Write a C++ program which will read in a list of numbers, find the average of all numbers, the average of thepositive and negative numbers, and the largest element. Your program should contain at … |
 | Okay I have a datagridview with multiple rows and columns of data. I set the grid to Readonly == true by default, but have a method that when the user double clicks the datagridview, it's gets the current cell the user is clicking and then uses this line of code … |
| | hello everyone i am trying to make a list that contains name with following option add till name write out names in the list remove name from the list sort the list look efter a name from the list save the list to a file please i will appreciate if …  |
| | Hi, I have a text file with characters. I must able to read the length of characters in the file by every line and count the frequency of each characters for each line. I have tried on writing this program but this does not work. Can anyone help me on … |
| | Hey guys, This is my first official post on DaniWeb :) I am new at programming in C++ using visual studios, and right now I am fooling around with storing user input into Arrays. I am having a problem with my code, using an array size of 3 to store …  |
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| | I cannot copy 2d array. There are no errors in my error list. What is wrong with my code? The problem might be located in create(). Thanks in advance. Here is my code. [CODE]int **map void randomize(int numberToSelect,int range, int *list){ int* remainingNumbers = new int[range]; int* chosenNumbers = new … |
| | hey. How to load and save to XML. xml like: [CODE][track1] name= url= starttime= [/track1] [track2].... [/CODE] and how to load only name to listbox without all link. |
| | What are some hints or tips on writing efficient functions? I read about converting the code to assembly, and I've also read about the stack and functions. However, I fail to understand how data stored higher can be accessed before the end on a FIFO stack, as any local variable … |
| | Hey again ...:P Now i have problem with save & load from/to text file. [CODE]private: System::Void załadujPlaylisteToolStripMenuItem_Click(System::Object^ sender, System::EventArgs^ e) { OpenFileDialog^ dig = gcnew OpenFileDialog(); dig->Filter = "PlayList(*.PLS)|*.PLS"; if(dig->ShowDialog() == System::Windows::Forms::DialogResult::OK) { listBox1->Items->Add(IO::File::ReadAllText(dig->FileName)); } } private: System::Void zapiszPlaylisteToolStripMenuItem_Click(System::Object^ sender, System::EventArgs^ e) { SaveFileDialog^ dig = gcnew SaveFileDialog(); dig->Filter = … |
| | So, this is probably a bit abstract, and I apologize if the title was imprecise: I have a simulation class, which contains a vector of objects of class A, the member functions of which depend on parameters a,b,c: [CODE] class SIMULATION { vector<A> array; }; class A { A(a,b,c); } …  |
| | 2D vector data types should be different or same only .. for ex:: for one sub script with int data type and with another subscript with class name is it possible to declare with diff. data types  |
| | Hi! my dear all. [CODE]#include<iostream.h> #include<stdlib.h> #include<fstream.h> #include<conio.h> #include<stdio.h> class payroll { private: char address[50]; float basic,allowence,deduction; public: void add(void); }; void payroll::add(void) { clrscr(); int e_no,choice; char name[50],ch; payroll e; cout<<"Enter Employe Number: ";cin>>e_no; cout<<"Enter Employe Name: ";gets(name); cout<<"Enter Employe's Address: ";gets(e.address); cout<<"Enter Employe's Basic Salary: ";cin>>e.basic; cout<<"Enter Employe's … |
 | Hi pals, I try a code in my Dev -C++ Environment v 4.9.9.2 in Windows XP. I save file as "satwant_mysql.cpp" in E:/C++/ Directory.... [CODE] #include <mysql/mysql.h> #include <stdio.h> int main(){ MYSQL mysql; MYSQL_ROW row; MYSQL_RES *result; unsigned int num_fields; unsigned int i; mysql_init(&mysql); if (!mysql_real_connect(&mysql,"localhost","root","","MyDatabase",0,NULL,0)) { fprintf(stderr, "Failed to … |
| | Hi everyone. I'm facing a tricky problem with keyboard hooks in visual c++ (MFC). I have two global keyboard hooks set in my application and everything works smoothly when windows explorer is running. But my application needs to run without windows explorer (in kiosk mode), so i replace explorer.exe with … |
| | Hello. How can I protect my application against Memory Editors? Like, Cheat Engine, Debuggers, etc. |
| | Hello everyone. I've been trying to implement a linked list in C++. I found this implementation on the web, where they created a struct for the list's nodes. When trying to add a new node to the list, I get this error: [B]List.C: In member function `bool Linked::addNode(Point)': List.C:23: error: … |
| | Dear all, I need your help on tis programming assignment I have. I need to save all the atrributes information to a signle file. I need to have 2 options : Save to a default name backup.bak and to a users filename choice. I have found this code in an …  |
| | i have this and i can not solve it plz l do not have time :( Write a program that print the prime factorization of all the number n between 2 and 100 .if n is a prime , your program writes that it is so . otherwise it should … |
| | Hi everybody, I really need that code, I have a text file 32 4 12 13 4 12 0 0 0 0 0 3 2 3 4 and I want to convert it vector or array like A[2]={32,4} B[4]={12,13,4,12} C[9]={0,0,0,0,0,3,2,3,4} The size of the vector or array can be changed … |
| | Hello community im new! I am really rusty at C# but i do not want to learn the basics all over again so i hit the ground running and ran into a hurdle. I want to use an xml file for a database. Its a car repair tracking system i … |
| | i cannot find any information on this topic, but im curious as to the point in chaining hardware breakpoints and how it can be done! any information is greatly appreciated! -thx |
| | Allright dudes ,listen up .. i am programming C++ about 2 days now , so i am not into it , in any way , so the problem is that the preproceccor macro #define should trigger the constructor , but the problem is that i got that annoying compiler error … |
| | I need to calculate the network bandwidth in LAN. But i don't have any idea about it .Help me how to calculate it. Thanks in advance. |
| | how i make this prog i am trying my best but did,t make [ICODE]**** * * * * ****[/ICODE] and ths [ICODE] 1 123 12345 54321 321 1 [/ICODE] pls send me at [I]<<snip>>[/I] |
 | We have been working to solve the issue early in the morning. This is a sample code to clearly show the situation. There are also more than 100 tables are waiting to get their records to calculate the results . Any idea ? conn.h #include "stdafx.h" static double global ; … |
| | I'm not used to getting this deep in c++, but all these pointers are making my brain boil. I'm trying to get a str_replace working [CODE]VOID str_replace(PCHAR Dest, PCHAR Find, PCHAR Replace) { PCHAR New=(char *)malloc(sizeof(CHAR)*MAX_STRING); PCHAR Found = Dest; PCHAR Temp = Dest; strcpy(New,""); while(strstr(Temp,Find)) { Found = strstr(Temp,Find); … |
| | In C I have created a program which can archive multiple files into an archive file via the command line. e.g. $echo 'file1/2' > file1/2.txt $./archive file1.txt file2.txt arhivedfile $cat archivedfile file1 file2 how do I create a process so that in my archivedfile I have: header file1 end header … |
| | Hello, [font=courier new][u]Brief Tutorial Revision[/u]: All examples can be compiled successfully in your compiler. Also, each example is compatable using the [b]-Wall[/b], [b]-pedantic[/b], [b]-ansi[/b], and [b]-std=c89[/b] GCC flags. Also, a few paragraphs have been modified, and code examples improved. Previous tutorial, Pointers #2, has been combined in this revision.[/font] [b][u]Introduction[/u][/b] … |
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| | hi I have been working in this code for a while and I need to know what's wrong with it ASAP. here: [CODE]#include<iostream> using namespace std; class Node { public: int value; Node * next; Node(); Node(int); }; Node::Node():value(0),next(NULL){} Node::Node(int v):value(v),next(NULL){} bool AllPositive(next * h) { bool test = false; … |
| | I am using ADODB for connecting ms-access database from a vc++ application.I want to insert record in access database;but if the record already exists in the access table then update query should run instead of insert query. the above task can easily be done with stored procedure, but since ms-access … |
| | Dear all, I am a newbie in this side and I need your assistance. I need to delelop a compiler that accepts text as input. I need to manipulate this text as follows. Where there is title to center the text and make it bigger font. We dont know where … |
| | Hi, I am newbie to c++. I would like to en quire on how to calculate the number of same alphabet in a string that we enter? For example if let say i have entered ABAAGAYHAUIJA and it should return 6. Here's my code. [CODE]#include <iostream> #include<conio.h> using namespace std; … |
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| | I cannot copy random numbers without repeating in a map. Unhandled exception at 0x0040115e in file.exe: 0xC0000005: Access violation writing location 0xabababaf. [CODE]int **map; int randomize(int numberToSelect,int range,int counter){ int* remainingNumbers = new int[range]; int* chosenNumbers = new int[numberToSelect]; for(int i = 0; i < range; i++) remainingNumbers[i] = i; … |
| | I have a project with a bunch of different options that you can turn on and off sprinkled throughout many files. You comment and uncomment the options you want, much like the php.ini file in PHP file, though this is actual code. It looks something like this: [code] //#ifndef _OPTION_1 … |
| | when i compile program then error are show in program that #include<iostream.h> or #include<conio.h> are not find. i also changed my directory that c:\tc\include or c:\tc\bin also but program not run error show that unable to with file include iostream plz tell solution of this. |
| | salaam,hope u will be fine,can anyone help me how to do coding for a scientif calculator which perform only the following function.Addition,Subtraction,Multiplication,Division and calculte different values for cos,sin and tan. |
| | Dear all, Maysomeone help me with this functions? I have entries in my classes and I need to initialize entries into other classes. To be more specific: I have Customers and Flights and I need to use this fuction to insert customers to random destinations. |
| | Writing a program that reads a string of arithmetic expression from the keyboard and evaluates the arithmetic operation in the string. Some example runs are given below. program should accept only * any real or integer numbers * four basic arithmetic operators, +, -, *, / * paranthesis ( , …  |
 | Hey, I'm trying to compile a simple producer-consumer program with Qt, using QThreads. I get this error message when trying to compile: [CODE] In file included from /usr/include/qt4/QtCore/QThread:1, from producer.h:4, from mainwindow.cpp:3: /usr/include/qt4/QtCore/qobject.h: In copy constructor ‘QThread::QThread(const QThread&)’: /usr/include/qt4/QtCore/qobject.h:309: error: ‘QObject::QObject(const QObject&)’ is private /usr/include/qt4/QtCore/qthread.h:60: error: within this context In … |
| | I'm making a dialog based text editor, using dev-c++. how can I insert text at the current cursor position? as in get the location of the cursor (not the mouse) and insert text at that point in the edittext control |
| | My question is when user enter any key from the keyboard including arrow keys, it should print one asterisk * , when user will again press any key it will add one more asterisk and ,and when user again press any key from keyboard it should add one more asterisk, … |
| | Hi. I want to read a file and scan the file to see if the file contains 0x000001 (24 bits, 23 zero and 1 one bit). if file contains 0x000001, return a "yes", else return a "no". I tried writing the program but cannot work. I am stuck with this … |
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