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| | Hi im trying to allocate memory using malloc(). Also, im trying to make a copy of the string before i allocate it. So im using strcpy(). But im still having issues with compiling it. please help!! [CODE] #include <stdlib.h> #include "setup.h" char *run( const char * const str ){ strcpy(str) … |
| | how can i REPLACE back slash in my string (file path) with forward slash. please help. str_replace doesnt seem to be working! |
| | Hi All, I have a popup window, which shows up after double clicking an installer. This window has 3 buttons: Back, Next & cancel. Using win32api I am able to get the window handles for all three buttons. I need to find out which of the buttons is enabled or … |
| | I'm having two Ajax-related problems on a page I am working on at the moment. [URL="http://www.utm.edu/departments/acadpro/library/openmic/add2db.php"]http://www.utm.edu/departments/acadpro/library/openmic/add2db.php[/URL] On this page, I have two buttons that use Ajax to fetch two separate forms and put them into a chosen div; that part works like a charm. On said forms, there is a …  |
| | I have one join query with 3 tables, which takes lot's of time to execute. I need to reduce execution time i.e., optimize it [code] QUERY: SELECT SQL_CALC_FOUND_ROWS p.*, FLOOR(p.prodratingtotal/p.prodnumratings) AS prodavgrating, 0 AS prodgroupdiscount, pi.* , (IF(p.prodname='gold', 10000, 0) + IF(p.prodcode='gold', 10000, 0) + ((MATCH (ps.prodname) AGAINST ('gold')) * …  |
| | Dumb question, but I've searched everywhere and found nothing specific: is it possible for HSB values to translate directly into a colour (eg. a hue of zero equals red) instead of passing them through an RBG conversion? Also, dumber: I'm not understanding the arrrays people are using, for example [URL="http://www.squarebox.co.uk/users/rolf/download/ColourWheel/ColourWheelApplet.java"]here[/URL] … |
 | hi all, I think I had done enough googling on this.But unable to get a proper explanation.Even there's not a wiki page exists there. So I need your help in advance. what is pre-rendering that coming with the AMD FUSION?I need to someone to explain it's architecture,and its ins and … |
| | Hi I've just started out in c++, can anyone tell me how to use pointers which hold addresses of objects ? How do you access the object fields from this type of pointer, especially strings (array of chars)... I'm using a Dev c++ 4.9.9.2 compiler.... |
| | [code] <?php $host="localhost"; // Host name $username=""; // Mysql username $password=""; // Mysql password $db_name=""; // Database name $tbl_name="comment"; // Table name // connect to the mysql server $link = mysql_connect($host, $username, $password) or die ("Could not connect to mysql because ".mysql_error()); // select the database $db_found = mysql_select_db($db_name) or … |
| | Hi Guys, When I am using XML version in the XHTML, then I am getting parser error [Parse error: parse error, unexpected T_STRING on line 1]. <?xml version="1.0" encoding="utf-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US"> <head> <title>Testing Page</title> </head> <body> <p>Hi</p> </body> </html> When … |
| | I want to enable/disable a table cell based on the contents of another cell. e.g. if the reference cell value is "true", then enable the cell, otherwise disable the cell. I have set up isCellEditable() to do this and it works if the reference cell already has a value when … |
| | Write a Java Class file for the class Account that represents a bank account. Usually, a bank account has a unique account number that is used to identify it. Your class should generate the account number automatically whenever a new account is created. The class should also store the account … |
| | Hi all, This is a script that reads in text from a file and separates it into characters. It works fine as long as MAXSTRLEN is under 610000. However, I need it to read in whole books of text. Whenever I try to bump that number up above 610000 or … |
| | Dear all, I am writting a code for high dimensional chebyshev interpolation. Since it is high dimensional, I MUST use extremely large arrays. Something like this: [CODE] #define DIM (int)2 #define TOTAL_STEPS (int)30 int main(){ double *a_data; long long a_dim; /** length of matrix a_data **/ int n; /** # … |
| | I want to hold user input strings in an array and be able to print it. Is there a way for me to hold string 1 in arr[0], string 2 in arr[1] and so on and so forth? heres what Im thinking [CODE] int p=1, r=3, l=0; char arr[255]; while(p … |
| | It is said in many places that comparing two floating numbers for equality can give wrong result and we have to take into account some epsilon value like this float f1,f2; if (f1-f2<epsilon) printf("gotcha"); So what is the reasonable estimate of epsilon? My intuition is that that has to be … |
| | Please i need some suggestions on how to develop a web based forum application...am not sure if to use ASP.net or php... |
| | Hello, I am opening a new Form in my application and want to pass along a variable to Form2. I think I am pass along it correctly but are not sure how to receive it in Form2. How will that be possible ? [code] String^ ForwardVariable; private: System::Void button1_Click(System::Object^ sender, … |
 | I have been trying to figure out for the life of me what I am doing wrong here, and I am coming up blank. My operator is returning the correct value in temp - as you can see highlighted in red, however, when I use the operator in main - … |
 | So far no one has been able to tell me why this code is not working, or what I need to do to THIS code to make it work. Can someone simply show using MY code below where the problem is, and why it's not working properly? Problem: I am … |
| | how does long and long long differ? The machine I am using has core 2 duo processor. It shows the same size (8 bytes) for both of them. Was short type ever was 1 byte and changed to 2 bytes later on? Was long and int ever was 4 byte …  |
| | using switch and if ... else statements, write the two grading programs. consider the following grading system; 70-100 A 60-69 B 50-59 C 40-49 D 0-39 F  |
| | Hi struggling with java - we have a class Structures and Algorithims in which we are supposed to pick up java in 5 weeks Have been pouring over material and searching sites but trouble is when I start to write ends up nothing seems to work unless we copy and … |
| | hey, im having trouble making a python program run using a window, honestly i dont even know where to start. I have to make a coffee program where there is a menu and the user has to choose between adding, modifying, searching, showing, and deleting any entrys made to the … |
| | In the following code: [CODE]#include <iostream.h> class Base { public: Base(){ cout<<"Constructor: Base"<<endl;} ~Base(){ cout<<"Destructor : Base"<<endl;} }; class Derived: public Base { //Doing a lot of jobs by extending the functionality public: Derived(){ cout<<"Constructor: Derived"<<endl;} ~Derived(){ cout<<"Destructor : Derived"<<endl;} > }; void main() { Base *Var = new Derived(); …  |
| | In some c++ source code I wrote this: [CODE]#include <iostream.h> using namespace std; [/CODE] [CODE]error: iostream.h: No such file or directory[/CODE] I compiled it using g++. But when I changed it to #include <iostream> it started working. Why? |
| | Ok, I'm creating working on a black jack game. A very simplified version that doesn't have a dealer. Just the user and they either hit black jack or bust basically. I have the code written for a deck of cards, then shuffle it and place it into a text file. … |
| | hii i just downloaded a dev c++ compiler...& wrote the basic hello world program...whenever i try to compile ..my quickheal antivirus deletes it as a trojan...please help..i reinstalled it but gives the same result |
| | Hi, im having a problem with a custom control in asp.net I've googled but I cant find any solution, maybe the people here can lend me a hand. Here's the code [CODE] public Table generateControls(GeoData geodata) { Table table = new Table(); Label StrAddress = new Label(); Label Localty = … |
| | I need an algorithm for the following problem: There's a tree with N fruits each with its own weight w[i] and height h[i]. I can only reach a fruit if it's no taller than H inches. Also every time I pick a fruit, all the other fruits in the tree … |
| | Hello, I'm curious to know whether it is possible to expose the functions of a C# application so that they could be used by another C# application in runtime. The thing I am referring too is quite similiar([I]might even be the same[/I]) as using an API. I have searched on … |
| | hai friends can anyone give me an example of a program to hash using crypt(3) thanks linux learner. |
| | Hello, I am attempting to use JavaScript to 'highlight' text by changing it's background color: [code] <div id="foo" onMouseOver="highlight(this);"></div> [/code] In JavaScript: [code] function highlight (word) { document.getElementById (word.id).bgColor="blue"; } [/code] This produces no effect. I also have an onClick event in the same div, can I not have onClick … |
| | Hi I have a table with info that I want to read and display. I can read it and display but I cant seem to format it can anyone tell me whats wrong. [code] <html> <head> <title>comment</title> </head> <body> <form action="postcomment.php" method="post"> name: <input type="text" name="name" ><br> comment: <textarea name= … |
| | <?php $link=mysql_connect("localhost", "root","parola") or die("Could not connect: " . mysql_error()); mysql_select_db('energiesolara',$link) or die ('Can't use energiesolaradb: ' . mysql_error()); $x=mysql_query("SELECT umiditate FROM parametrii"); while($info=mysql_fetch_array($x)) { $comma_separated=implode(",",$info); } print "$comma_separated"; ?> I want that $comma_separated to store all the elements.But when I print that there is only one element which is …  |
| | hey everyone ok so i have reached another road block any pointers are much appreciated the program will not compile due to eclipse not liking the int Password::passwordNumber(int i); int Password::passwordCapLetter(int i); in the .h any ideas demp.cpp [CODE] /* File Name: Demo.cpp Chapter No. 12 - Exercise No. 12 … |
| | I keep getting that error when I open my form in which I have control that are dynamically created. ERROR 340: Control array element 0 doesn't exist |
| | hi, can anyone help me to solve the following java problem write a java program for holding a stack of up to 10 characters. pls help me. thanks you shantuli |
| | I am taking date of birth as input from my form and storing it, I need to calculate the age from this date of birth. While this problem seems easy(I haven't tried it out for myself,used one of my friends code) I also need to increase the age of the …  |
 | I'm learning pygame and followed a tutorial about a pong game. Everything is from the tutorial except the score system, I implemented. It does work, but instead that the score is updated, the new score is printed over the previous score.. Which isn't a nice view. How can I solve …  |
 | Hi, I'm trying to use the built in gcd method to calculate the gcd for two values. Unfortunately I can't seem to import the right module to get the method. [code=python] from fractions import Fraction ... x = gcd(a,b) [/code] |
| | I'm trying to code the game of minesweeper. For some reason, the image won't display properly--and it isn't a case of a missing file, b/c I have a try-except code snippet that is set to print out an error message should this occur, and that isn't happening. So either it's … |
| | Trying to learn Java on my own with the book "Starting out with java" The question is this Write a class that has three overloaded static methods for calculating the areas of the following geometric shapes: circles rectangles cylinders (it gives the formulas for the are of them) Because the … |
| | Guys, I need help When I compile my code, I get [code]error: invalid operands to binary ^ (have ‘float’ and ‘double’)[/code] Here's some portion of my code: [code=c] #include <stdlib.h> #include <stdio.h> ... float freq; const float key_magic = 2 ^ (1/12); ... freq=440*(key_magic)^(atof(optarg)-49); [/code] Thanks |
 | Running Mono on Ubuntu 9.10 Main.cs [CODE]using System; using SdlDotNet; using SdlDotNet.Core; using SdlDotNet.Graphics; using System.Drawing; namespace TroutWars { class MainClass { public static void Main(string[] args) { Video.SetVideoMode(1024, 768); Events.Quit += new EventHandler < QuitEventArgs > (Quit); EventArgs.Run(); } void Quit(object sender, QuitEventArgs e) { Events.QuitApplication(); } } }[/CODE] … |
| | Hi all, I am new to C# and the visual studio express environment. I have a button on this web page, when it is clicked a method assigns a new random number to a variable but I want new clicks to add numbers to what was in the variable and … |
| | I wrote this distructor one way, but the person who code reviewed it seems to think it's better and more readable the other way. I disagree. It's probably more a matter of preference, but what do you think... [code] RfPrinter::~RfPrinter() { if (!hub_.empty() && !name_.empty()) { clearbuf(rfunitlock); rul_hub = hub_; …  |
| | my website layout breaks up when users zoom to +125% and to -65 in IE and ++2 and --2 in Firefox. Is there any way of fixing this? Website was developed in PHP and uses CSS. I know I'm not the first person to face this but I can't find … |
| | I am recently new to C++ and I wondered if someone could show me how to modify my program below. I want the program to test if there is more than 1 day that has the highest rainfall and susequently to output those corresponding days. Than you :) [CODE]#include <iostream> … |
| | Is it possible to name a cookie in javascript? i've got a web program that will display "name:undefined Name:Jack Grade:32" whenever i display the contents of a cookie i create. i'm assuming th first bit is the cookie name itself and then the other two bits are the contents? also, … |
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