51,593 Topics
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| | Can we make a random choose from a alphas chars ? [CODE] srand(time(NULL)); rand()%z // from A to z // Sure wrong wiz errors .. //so which way i can use ? Converting to Assci Code and choose // randomly form the Numbers which are from 65 to 90 ?? …  |
| | So I have to connect to a server on a specific port but all I have to identify the server is its name, e.g. "students.ce.sinclair.edu" in a char*. How can I get the ip address to assign to a sockaddr_in? [CODE]struct sockaddr_in server; memset($server, 0, sizeof(server)); server.sin_family = AF_INET; //server.sin_addr.s_addr … |
| | My assignment is as follows... Create a program called part4.cpp containing a recursive function that accepts a pointer to a null-terminated string as its argument, and prints the string in reverse order. Demonstrate the function by calling it from the main function with a string that has been provided by … |
| | [CODE]#include <iostream> using namespace std; class Person { private: string name; public: Person(); Person(string the_name); string get_name() const; }; //////////////////////////////////////////////////////////////// class vehicle { protected: string name; int cylinders; Person owner; public: vehicle(); vehicle(string _name, int _cylinders, Person _owner); void display() { cout << name; cout << cylinders; cout << owner.get_name(); …  |
| | i'm having trouble with my factors function. I need to find the factors of all positive numbers in an array and then find their sums. I'm pretty confused at this point. The last thing that I tried was to take each number in array one at a time and find …  |
| | I am trying to construct a linked list that contains string pointers. Since strings can be quite large, I am trying to save space and access time by storing pointers to them in the linked list. The strings are read from a text file and inserted into a linked list. … |
| | Hey guys, I have been looking into queue's and stacks this week guys and I decided that I would like to convert my current array into a stack. Does anyone know how to or can give me some assistance with the current code I have?? I really do not even … |
| | Hey all, i would really appreciate some help with abit of code i'm stuck on. I am trying to read data from text files in this way: 1. Open text file 2. Read in the first line from the text file that doesnt start with "/" 3. change this char … |
| | Hey all ok so the issue seems to be at line 45 it seems to be making a loop from the output betting im just doing something wrong with exceptions, sense im just learning them. thanks in advance [CODE] /* File Name: Demo.cpp Chapter No. 16 - Exercise No. 2 … |
| | I am trying to move a player in direction angle by speed. I need to use trigonometric functions in order to calculate this. Can anyone help me discover how to do this? [code]if (playerB.up == true) { (playerB.speed)+=((Delta*ballspeed)/1000); } if (playerB.down == true) { (playerB.speed)-=((Delta*ballspeed)/1000); } if (playerB.left == true) … |
| | I have done image processing for years. This is code development not deliverable. (I turn the code over to others and they make it run on a hardware processor.) Development has always been done by me reading thousands of images as separate files on the hard disk. In the last … |
| | Hi, I want to ask you, how can I do that this program will be finished by pressing of enter? Please help me. I tried it and it is writted in this program, but no effect. THANKS [CODE] #include "SDL/GUI.h" #include <stdio.h> #include <windows.h> int main(int argc, char* args[]) { … |
| | Hello everyone: I'm having a problem with vector indexing. The following code results in a segmentation fault: [CODE] for (int i = 0; i < (rows * rows); i++) { temperature[(i * rows) + (rows - 1)] = 0; }[/CODE] And: [CODE] for (int i = 0; i < (rows … |
 | Hello everyone! I havnt posted in awhile, but I am working on a new project and have hit a speed bump. I was wondering if there is a way to transfer HTML form data to a C++ program. What I mean by that is, the user enters data into the … |
| | Hi all This is the file i wanna write a program for [url]http://www.mediafire.com/?vzrz1ymnmlq[/url] . It contains a database with a game's "spells", the damage they do, they're icon and other useful info i wanna see. I wanna get this file in an sql executable format and into my sql database. … |
| | I have a command-line exe that, when invoked from a console window works normally, i.e. when given an input file, produces a good output file. When I invoke the same tool using CreateProcess() from a VC++ 6.0 module, it does not generate the output file. The exe itself has no … |
| | [Linker error] undefined reference to `__cpu_features_init' comes to [CODE]#include <stdio.h> int main(){ char c; printf("Hello World!"); scanf("%c", &c); } [/CODE] I don't think that it's code problem. What can I do? (Dev C++ newest version) (I tried reinstalling DEV C++) |
| | This is VC++ 6.0 code running on a Windows Server 2003 SP2 machine. 1. I launch an external exe from my code using CreateProcess() 2. This process creates a file on disk 3. I do rc = WaitForSingleObject(procInfo.hProcess,INFINITE); 4. rc is returned as WAIT_OBJECT_0 5. int result = _stat( strDestFile, … |
 | Hello to all of you I have been using Turbo C++ for last 6 mounths and do all my graphics very fine. But when i started using Vc++, graphics.h was not including there. Can any one of u tell me to how to start graphics programming in Vc++ using same … |
| | My program keeps giving my undefined references to my vectors and items in namespace fun class driver and i cannot change it I really need help I'm a pretty big noob at programming [CODE] /* * Austin Gould * * main.cpp * main to drivers in fun in the sun … |
| | I began teaching myself programming 3 weeks ago. Its hard (for me) i'm trying to include some date validating within a program i am writing. this is what i have so far, but invalid dates are validated unfortunately. eg. November 31 2010 or february 30 2012 have a look and … |
| | Hello, i got a problem with identifieng my classes upon its static ID number. Upon creation of each class, it recieves its individual number, the numbers are ascending from 0 to "endless". So now, I want to do a loop like this [code=c++] for(int i = 0; i <= Class::GetMaxIDNumber(); … |
| | Hello, I currently have working code to solve a single first order differential equation using a predictor-corrector. I need to modify this to solve a system of first order differential equations. Here is the system I need to solve: y'' = -y' + 6y; y(0)=1; y'(0)=-2, on [0,4] And here … |
| | [CODE] OpenFileDialog dlg; richTextBox1->Text=dlg.FileNames; [/CODE] Can someone tell me what am I doing wrong? I get the following errors cannot convert parameter 1 from 'cli::array<Type,dimension> ^' to 'System::String ^' I want to multiselect files and then print their names intoo richTextBox1. I know that richTextBox1>Text is System::String^ and dlg.FileNames is …  |
| | Hey, I have a VC++ DLL, which returns the sum of two long double values, passed as one dimensional array? could anybody please tell the right syntax to pass array to this dll from vb.net currently, my code snippet is as follows: [B]DllClass.vb[/B] [code=vb] Imports System Imports System.Collections.Generic Imports System.Text … |
| | Program Exercise 3. Your teacher at your school requires your help in grading a True/False test. The test answers is stored in a file called Answers.txt. The student responses are stored in a file called Reponses.txt and has the following layout: 999999999 FTFTFTFTFTFTFTFTFTFT The Answers.txt layout is: FFTFTFTFTFTFTFTFTFTFT Write a … |
| | Hello all, i am in need of developing an application (writing a C/c++ code ) to Run an application(say for example a vlc player or any as such) from the Code and get its process ID and perform certain manipulation and then kill it ..... i want the application to … |
| | Hi Basically i am trying to read a file and insert a specific string at a position. but it seems that the entire process freezes and the program runs out of control. [CODE] fstream shot; char mess[240]; shot.open("file.vix"); while(!shot.eof()) { shot.getline("mess",240); if(strcmp(mess,"<DEPT>)==0) { shot<<"< ANNOUNCED >\n"; //TROUBLE } } [/CODE] … |
| | I have to create a class with a default and alt constructor to fill an inventory array of seven elements. Only one dimentional first error is a 1>e:\invclass\invclass.cpp\invclass.cpp\invclass.cpp(83) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int here is my class code why won't … |
| | I am having trouble with an array. I have to enter some food items and their calorie values and then when finished I have to re enter the food item and then search the array to output their calorie values. My problem is how do I search an array. here … |
| | I am trying to get my racing game to recognise when two images have hit eachother when this happens I then want the game to display "Player 1 or 2 wins" and then quit the game. My code is very long so i will not post unless i need to. … |
| | basically a func named getString is supposed to ask user to enter a sentence, store sentence in the array, dynamically allocate a char array big enough to hold the sentence plus null terminator. then it should copy the sentence to the dynamically allocated array then return the pointer to the …  |
| | hey guys i need an help to do the following : I am trying to compare the words in the array to the words in the text file. And if the word in the text file matches the word in the array it should be given a higher value and … |
| | Hi my professor for an entry level C++ class recently assigned us a homework problem, but hasn't quite taught us how to approach this problem. The problem asks us to create a working C++ program that has a class called [ICODE]Fractions[/ICODE] that has two int data members called numerator and … |
| | Ok I've spent more time than you would believe on this one. I built the program, started from scratch. Over the course of the last week I've spent no shit about 30 hours on this and still cant get it to work right. What is suppose to happen is the … |
| | Problem Statement: Consider a collection of songs in an MP-3 library where each song is characterized by artistName, songTitle, albumName, playTime (in seconds), musicCategory, and albumProducer – hence, you will need to use a struct data type to hold a song and an array of structs to hold the song … |
| | hello n is 10 numbers 10 50 25 75 2000 30 500 800 10 25 485 p.s var[i] is the variable contains all above numbers for example if the user enters 25 how do i print out how many times number 25 was enterd not in which index it is … |
| | Hi everyone.. I am a new programmer to OpenGL using C++. I have an nxn grid having numbers in each cell of the grid.. I have to swap the content of two cells.. ie., the numbers in 2 cells selected, have to be swapped. I am not knowing how to …  |
| | [CODE] getline(inFile, st[i].name) while (inFile){ inFile >> st[i].id >> st[i].eng101 >> st[i].hist201; i++; getline(inFile, st[i].name); [/CODE] The above code only reads the first line of my input file, and the rest prints out zeros. My input file is set up like: John Wall 345505050 95 66 The output looks like: …  |
| | Hey, I need a function that virtually increase the size of an array, by creating a new array with the size of the old array plus the default array size and copying the content of the old array to the new array, finally returning the new array. This is a … |
| | I am writing a sort program and i am getting the error " error: no matching function for call to 'Object::setdepend(Object*&)' " in this line " graph[i]->setdepend(graph[atoi(buffer.c_str())]); " which is in my read function. I am not sure how to fix this, can anyone help? [CODE] #include <iostream> #include <fstream> … |
| | HTML files use tags enclosed in angle brackets to denote formatting instructions. For example, <B> indicates bold and <I> indicates italic. If a web browser is displaying an HTML document that contain < or >, it may mistake these symbols for tags. This is a common problem with C++ files, … |
| | This is what my debugger says, but I can't find the problem. Holding.h:15: warning: `class Holding' has virtual functions but non-virtual destructor In file included from p6.cpp:12: Recording.h:13: warning: `class Book::Recording' has virtual functions but non-virtual destructor p6.cpp:90: error: expected `}' at end of input Book.h:14: warning: `class Book' has … |
| | Hi I've been having problems retrieving a webpage using HTTP GET in winsock. I used a packet sniffer to construct the header and the GET Request appears fine although I receive a "400 Bad Request Error". Thanks if you can help. Ricky My code: [CODE] int HTTP_GET() { WSADATA wsa; … |
| | I've look in the C++ standard and, when listing list of compound stuff, it does not mention anything like "pointer to [B]data [/B]member of an instantiated class". So the question is: [CODE]struct test{ int a; double d; ..... //more complicated stuff here to make it a NON-pod structure) .... }; … |
| | Hi, I have been working on a Reversi/Othello game using QT and have got stuck when trying to implement a new game function which will return the game state back to its original state. reversigame.cpp [CODE]/** @file reversigame.cpp @author Rob Charrett @brief ReversiGame implementation. */ #include "reversigame.h" ReversiGame::ReversiGame(QWidget *parent, Qt::WFlags … |
| | Hi there, I'm getting on pretty well with a project for uni I've got to do, although I'm currently slumped at a bit. I'm running a loop to constantly read numbers into a set of equations and I'm required to output these to an excel file. I've sussed making the … |
| | Hello guys I am making a speel check program in Turbo/borland c++ and i have a problem with the libary #include <vector.h>. Is this labary in Turbo/borland c++ difrent or what? Here is the program: [CODE] #include <iostream.h> #include <fstream.h> #include <vector.h> #include <string.h> vector<string> explode( const string &znak, const … |
| | Hi guys, I'm doing a program that reads from two files and write to 16 files. The idea of the program is to rout packets across a network that contains 16 nodes. I still working in the routing mechanism but I just wrote the codes for the source node and … |
| | [CODE]// Word Jumble // The classic word jumble game where the player can ask for a hint #include <iostream> #include <string> #include <cstdlib> #include <ctime> using namespace std; int main() { enum fields {WORD, HINT, NUM_FIELDS}; const int NUM_WORDS = 5; const string WORDS[NUM_WORDS][NUM_FIELDS] = { {"abbott", "part of colton's …  |
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