51,593 Topics
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| | Hello All, I have starting using Visual Studio Pro 2010 and I understand the very basics in programming. Currently I am trying to create a login system where users enter their usernames and passwords. I have been experimenting with trying to link Access database to MySQL but im having no … |
| | hi all, I am trying to develop autocad like software in c and c++ .Which c and c++ editor is best to develop software..editor must be support graphics program in c and c++.. please give me suggestion ,link,and tutorial learn something  |
| | #include <iostream> #include <string.h> using namespace std; int main() { char test[256]; int x,i; int vowels; cout<<"please enter a word"; gets(test); x = strlen(test); for(i=0;i<=x-1;i++) { if(test[i]!=' ') { cout<<test[i]<<endl; } if (test[i]=='a' || test[i]=='e' || test[i]=='i' || test[i]=='o' || test[i]=='u' || test[i]=='A' || test[i]=='E' || test[i]=='I' || test[i]=='O' || … |
| | We are using C# as front End and Sqlserver 2005 as backend.We are using visual studio 2008. System.data.sqlclient is the provider for sqlserver in our localhost and our functionality is running correctly. But we are using bigrock as hostgator, where we uploaded our files and we get to know that … |
| | hi all, I do not understand how i concatination of two string using pointer in c++. please can you give sugestion how i implement.. thanks in advance  |
| | Hey everyone, I am pretty new to writing procedures that deal with this idea of recursion. I am trying to get into that certain frame of mind but I am having a little bit of trouble at the last minute. My goal was to implement a text operation called swap … |
| | I am going to assume that gcc is the compiler people are using on their *NIX. so for that, I know that [CODE]#if defined(__GNUC__) [/CODE] will work. SO... for Centos, Solaris, HPUX, AIX, Linux, BSD, FreeBSD, OpenSUSE, Fedora, redhat, what #if defined()'s do I use to detect these OS's? |
| | I believe that my program in the attached file is almost finished. When I try to run the program,there are two error message that pop up. The error are the following: 1>MSVCRTD.lib(crtexe.obj) : error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup 1>c:\users\usr\documents\visual studio 2010\Projects\NEWLDIST\Debug\NEWLDIST.exe : fatal error LNK1120: …  |
| | Hi, I am having trouble outputting to many files [CODE] ifstream sim_dump; sim_dump.open("c_grain.sim_trj"); char dump_file[20]; int itr = 4000; sprintf( dump_file, "%d", itr); ofstream fout(dump_file); while(lammpsdump.good()) { //if(itr % 100 == 0) //{ fout.close(); sprintf( dump_file, "%d", itr); ofstream fout(dump_file); cout << "TIMESTEP " << itr << endl; //} ... … |
| | ok so first of all my following code its suppose to read input from user and seperate the strings into commands and arguments.For example if i input changeDir hello , the tokenizer(which i already implemented) will split it and put changeDir into tokens[0] and hello into tokens[1]. Now what im … |
| | Hey everyone, I wrote some code to create a deck of cards, described the deck and randomly deals 5 cards. First, I want to let everyone know that this is homework for my C-II college class, so I am not looking for any answers, but solutions or guidance in figuring …  |
| | I'm trying to find the mode of a vector full of ints. To do so I created a map an tried to make it so that evey time a number occurs it increments the related key on the map. Right now I'm just getting the highest number in the vector … |
| | I need to sort a series of 25 numbers, entered by the user from smallest to largest, then count the number of times the user entered the number "10". I can't use arrays and I have to use only for loops, can someone please help? |
| | I simply cannot figure this program out (nor why I am going in debt paying professors to "teach" me). Our assignment begins with reading a data from a file and storing it in an object array and then displaying the contents of that array. When I compile the program in … |
| | hi everybody, i would be glad if someone could show me how the Get and Set functions work. thanks. |
| | I am using Irrlicht with code blocks on a Mac osx. Whenever I try to run the Irrlicht wizard in code blocks I get an error that says "The path you entered seems valid, but this wizard can't locate the Irrlicht's library file in it." I am using the most … |
| | I need help fixing this one error with my code. Below Im going to upload a piece of the code which im having problems with and the output error . [CODE]int main() { int vals[100]; fstream file; string line = "----------------------------------------------------\n"; string msg2 = " Please select an option from … |
| | THIS IS A MAZE ON A TUTORIAL I AM TRYING TO MAKE < I AM TRYING TO GET TO GRIPS WITH IT ALL, THE MORE I TRY FIX THE ERRORS THE MORE I GET, THANKS TO ANYONE WHO POSTS [CODE] maze.cpp : main project file. #include "stdafx.h" #include "Form1.h" using … |
| | I am new to programming. I have the below code and It need to output the vote, percentage, winner, and total. I am totally lost please assist: #include <iostream> #include <string> #include <vector> using namespace std; struct electionList { void print() const; void voteTotal(); void solvePercentage(); void calcWinner(); int votes[100]; … |
| | Hi. I'm having a problem with a module in a program written in powerbuilder An event is triggered when the user change the focus to a specified textbox the event creates local variables that I set to null, then I read a string that comes from the lecture of a … |
| | Im wondering would anyone be able to help me with making a scoreboard in c++ for a football game...Any help would be great as i cant find any info on the net. |
| | So this program is supposed to take in a sentence and output it with correct spacing and capitalization. -For example if I entered: heY, How are You doing? -the output should be: Hey, how are you doing? The program runs fine, I just cannot get it to output. [CODE]#include <iostream> … |
| | HI every one, I know this is stupid question. But i am new bie in c++. Can you please tell me. Question: I have two file a.cpp and b.cpp. i want to give output (some number) of a.cpp to as a input on other file b.cpp. And b.cpp will take … |
| | Hello, For my homework I have to do about 14 functions and I have figured out all but two of them. This one; int toNumber( char c ) If the character passed in is a numeric digit, then the integer value (not the ASCII code) of that digit is returned. …  |
| | i have a problem with my following code, note: this is just part of my code when i run it, lets say i enter hello world it will output: hello segmentation fault is there a way i can fix this? [CODE] void input::read_line() { string command; while(command != "exit") { … |
| | Currently looking for a guide on socket.h more specificly Linux Version > sys/socket.h Can't Find any start up tutorials on the net if someone has a link(s) that helped them understand sockets please post//pm me them. --Thanks, ilearnz  |
| | Hello all, I have been learning C++ on and off for some time and it hasn't yet sunk in, mainly due to time constraints. I purchased "Sams teach yourself C++ in 24 hours" which whilst seems okay I find myself reading it to finish the book opposed to taking in …  |
| | hi all how to find the size of int without using sizof operator thanks in advance |
| | hi everybody! :) I have 4 tables in my mysql database as user car_description techniqual_description saled_serial_numbers In user table user_name is the primary key. In car_description there is car_id as primary key and serial_number as foreign key which is primary key in table saled_serial number and user_name as foreign key … |
| | [B]I want to use 128 Bit pseudo random function generator in my acadmic project. But i did not found. Can any one please tell where i can get it in c++ or c language. Thanks in advance[/B] |
| | Can you help me find the errors with this code: [CODE]class MyClass { private: char * pcMyString; MyClass( MyOldClass oOld ) { pcMyString = new char[strlen(oOld.pcMyOldString)]; }; MyClass( MyClass * oObj ) { pcMyString = oObj->pcMyString; poMyOld = oObj->poMyOld; }; void calcOffset_Helper() const; public: MyOldClass * poMyOld; bool isStringEmpty() const; … |
 | i recently read that quick sort is most popular algorithm.it has a good efficiency but its not stable.can anyone plz explain me quicksort algorithm in short.i am not able to get it:?: |
| | hi all, I do not uderstand how to implement the selection sort algorithim in c++ Thanks in advance |
| | I am fairly new to C++ programming and have been working on an assignment for my C++ class that involves writing a dice rolling program (rolls 2 dice). The program is to get a random seed number and a desired number of rolls from the user, keep track of the … |
| | Hi, I have to acess a vector, which is a member of a structure... Could you please help me.. |
| | I am getting syntax errors and stuff with this and i am trying to make a program where its rock, paper, scissors where the computer plays the user. any help would be awesome [code] #include <iostream> #include <ctime> using namespace std; enum Choice { Rock, Paper , Scissors }; // …  |
| | Hi, im new in Window Programming... i use this book -> (Programming Windows - Charles Petzold) This is my code [CODE]#include <Windows.h> #include <tchar.h> #include <stdio.h> LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam); int WINAPI WinMain(HINSTANCE hinstance, HINSTANCE previnstance, LPSTR szCmdLine, int iCmdShow) { static TCHAR … |
| | Hello everybody, I am trying to write a program consisting of two parts: 1. It lists of letters before and after a certain letter (if the user requested 2 letters regarding 'e', it would be cd and fg) 2. count the number of letters in each word of a sentence … |
| | i have this code and i am trying to make this [CODE]cout << (rand () % (1 + max - min) + min ) << "\t";[/CODE] into something like this [CODE]cout << rand (range) << "\t";[/CODE] and this the code [CODE]#include <iostream> using namespace std; int main () { srand …  |
| | Here's my full assignment below, and then the code I have so far to follow. I'm up to Step 4 of the assignment... need some insight to kickstart my flow. Much appreciated. [QUOTE]The ABC Corporation wishes to review a group of its products based on their performance in the prior … |
 | Hello, In my class I have a method that basically does this: - Reads in characters from text file (as a string) - Converts the characters into an integer - Stores the values into the integer Here is the code: [code] bool Loader::Read(string theFile) { strRepositry = theFile; string theData … |
| | I made union of two strings with letters. I need to write function in C++ which sort letters in union. example union is "acefd" I need result "acdef" Could someone help how to write the function for this in C++? |
| | How would I do this [CODE] class test { public: int* num; }; int main() { test *d = new test; d->num = new int; d->*num = 3; cout << d->*num; } [/CODE] |
| | I've a question on dynamic memory. As i understand it, i can create a dynamic memory array using: xxx= new int [z]; Then I can set the value of 'z' to be whatever value i want during the program. But if i create a dynamic memory array using a predefined … |
| | x*y = a + b*lcm(x,y) + c*gcd(x,y) I have to solve this eqaution.How to make a solution for it. here a,b,c<=10^6 Any suggestions |
 | Question: So basically using the class below I want to create polynomials as can be seen in the example: Command: s Set coefficient. Give A n c: x 3 33.33 Command: o Output poly. Give A: x Polynomial x: 0x^0 + 0x^1 + 0x^2 + 33.33x^3 Command: s Set coefficient. … |
| | Hello I'm working on a project, and I have the following classes: [LIST] [*]Loader - This loads the contents of the text file [*]Matrix - This processes the data that has been loaded [/LIST] Now I'm using association, Loader -> Matrix In my matrix class I have a method that … |
| | let say, i have a House object; House* someHouses = new House[100]; -----fucntion call... may or may not add stuff to someHouses ------ now, i want to get to the last position that haven't used yet. i tried to check NULL, and 0, both doesn't work. how can i check … |
 | Is this a viable BIGENDIAN test: [CODE]int tmpvaluethatwillneverreallybeused=1; bool bigendian=(*(char*)(&tmpvaluethatwillneverreallybeused)==1); void myFunction() { if (bigendian) { //do big endian specific code } else { //do little-endian specific code } }[/CODE]  |
 | I'm creating a game, the game is designed on 2d array of 12x12 The game is a remake of the 1984 pengi. I'm having trouble creating the array making the array fit the screen size. in the attachment in the Game1.cs I have initialized the 2d array of blocks randomly … |
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