51,593 Topics
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| | can we pass condition of if statement as an argument in any language????????? [CODE]class Matrix { static void loop(char a,char b,char c) { int a[][]=new int[3][3] ; byte i,j ; for(i=0;i<3;i++) { for(j=0;j<3;j++) { if(a b c) System.out.print(a[i][j]+"\t"); else System.out.print(" "+"\t"); } } public static void main(String ar[]) { loop('i','>','j'); …  |
| | I have a project that requires us to perform matrix multiplication via multi-threading, using the Windows API. I've got the basic code running and everything is well under sane/ideal conditions. But if my input matrices go beyond 10x10 the program ends up failing on WaitOnMultipleObjects(...) and runs the main thread … |
| | I'm learning linked lists in C++. In an exercise I have to duplicate H time a give item. So I thought in this method: [CODE]void duplicaNodo(int item, int &H, Pnodo &L){ //duplica un nodo H volte, scorrendo tutta la lista Pnodo Temp, Temp2; if(L!=NULL){ if(L->info==item){ for(int i=0; i<H; i++){ creaNodo(item, … |
| | So, I am fairly new to C++ programming, so if you can help me, please try to keep it simple...I'm still learning. What I'm trying to do is assign a score to a grade letter (A,B,C,D,F) and then display it. This is what I'm have: [CODE]string lettergrade1; string lettergrade2; if … |
| | I am unable to figure out how to check to see if there is more data in the file. I have a input file, where the last two lines are just new lines with new data. When I run my code, I get the last line of data in the …  |
| | Hello, I am having trouble going about taking a text file with a bunch of entries, like A43 A32 B45 A35 B23 etc, and having the numbers with A infront stored in one vector and the numbers with B infront stored in another. Anyone have hints for me? so far …  |
| | Hellow. I have 3 variables 1. string query; 2. public static OracleCommand oracmd; 3. public static OracleDataReader reader; I have used these variables in a function [CODE=C#] . . . public void PreviousValue() { query = " select * from....... "; oracmd = new OracleCommand(); .... .... reader = oracmd.ExecuteReader(); … |
| | I am a beginner to computer graphics and I have to add animations to the image of my national flag which look like [URL="http://4.bp.blogspot.com/_R_714JbVSys/SbJm90IMkpI/AAAAAAAAAEo/IQQ_YyvV2_M/s320/indian+national+flag.jpg"]this[/URL]. I have designed the flag alright.But I don't know what kinds of animations are possible and how. Could someone please guide me how to add animations …  |
| | I'm writing a program to add two hex numbers of up to ten digits, and I'm recieving an "assertion failure," and I can't figure out why. Any help would be greatly appreciated. Thank you for you time! [CODE] // hex addition.cpp : Defines the entry point for the console application. … |
| | Hi guys, I'm looking for a little help with Apache Xerces. I am currently trying to use Xerces-C++, but I'll soon be using Xerces-Java. As I look the the C++ programming guide and the DOM programming guide, a lot of my questions remain unanswered. The sample codes lack comments on … |
| | Hello, Simple question this time, I hope, I have a program that collects an argument from execution on another program, the argument is the path to a file. Now, the problem is that when I try to read the argument to a string using argv[1], it'll only get the first … |
| | I can seen to fix my linked list, i tried looking into other code for help, but most of the linked list examples online don't even work and are out dated: [CODE]#include <iostream> using namespace std; class list { private: struct node { int data; node *next; }*head, *tail; public: … |
 | I have this code for AlphaBeta implementation and have created versions of the required interfaces that work perfectly (I have debugged them quite thoroughly). Unfortunately my algorithm keeps returning an empty vector and score of 0. Here is the code: [CODE]#include <vector> #include <limits.h> using namespace std; typedef vector<unsigned char> … |
| | i have done coding for the board but now I'm stuck on getting randomizing ship placement for player1 and player2 So far for ship placement all i have is the function prototype. [CODE]#include <stdio.h> #include <stdlib.h> #include <time.h> int placeship( int x, int z[ ][ 10 ] ); // function[/CODE] … |
| | Hi, I've currently got a dilema. I'm aware that from within a C++ program, you can use return values to get data from a function, but I am currently developing a Qt program, and at the moment I have 2 GUI's: 1- Main Window 2- Dialog The main window calls … |
| | I am just starting to teach myself C++ and i have no coding experience so please bear with me on this if I ask you to explain your reasoning behind your response. My code is: // operating with varables #include <iostream> using namespace std; //declarations char STAR; int PRIME = … |
 | Hello could someone explain what I'm doing wrong to get the error: Segmentation fault: 11 when trying to fill in a 2D array from two for loops? Here is the code: Matrix.h [code] #ifndef _Matrix_h #define _Matrix_h using namespace std; class Matrix { public: Matrix(); // Constructor Matrix(int M, int … |
| | Please be easy on me and don't shoot me as I'm still newbie. I'm totally confused and can't for life figure out why when I run this code: [CODE]y = 9; cout << "++y = " << ++y << "\n--y = " << --y << "\ny++ = " << y++ … |
 | Hi, Has anyone any clue why message boxes keep showing 2-3 times after clicking one of their button in Borland? Please answer, I need help. Thanks! |
| | btw this is a part of a battleship code i want to know what the integers a,b,c,d,e,f... do I know this has something to do with placing ships randomly but it is a little complexed for me. I'd appreciate it if someone took their time to explain it [CODE]int placeship( …  |
| | I have a node class that has a pointer to Node indicating its parent Node [CODE] class Node { . . . Node *parentNode; }; [/CODE] I receive a pointer to node in the constructor being the parent Node of the current node being created or a NULL value if …  |
| | any ideas how to solve this?: I am using Visual Studio 2008 for compiling c++ programs and when I press f5(which is at default, the start debugging button) the console window flashes for a bit and then closes, but when I click on start without debugging, the console window stays … |
| | Earlier when I came here I had only a minimal set of utilities and a WinXP comp.. Now i'm here and serious, with kubuntu (and Internet!!!!) and willing to learn all of that dd, mov, eax, and bochs stuff. Here is my delemia: I have a C++ Program, have no … |
| | I have been given a task to send a file (.odt) via e-mail using no external libraries (stuff that doesn't come with GCC on ubuntu) and not using .NET. Compiler: GCC/G++ (with limited access to ACK) OS: Kubuntu 11.10 32 Bit IDE (like it matters): Code::Blocks Help Point Me in … |
| | Here is code which i am using Please check it first [CODE] for(x=0; x<=y; x++){ if(a=x||b=x||c=x){ printf("Value =%d",x); } } [/CODE] In this code x is a base for the loop i want loop till y (variable). Now inside the loop i want to check a condition if x (variable) … |
 | Hi I have a function I use in a win32 dll which downloads the source of a web page to file. The primary windows function used in it is "URLDownloadToFile" in "urlmon.h" But I would like to have a function that downloads directly to a string or char array. I …  |
| | I'm writing a program that adds two hexadecimal numbers of up to ten digits. I'm trying to use the POW function, but for some reason it's underlined. Why is that? [CODE] // hex addition.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include <iostream> #include <string> …  |
| | Here's the code. Uncomment line 9 and you get the following error. [quote] ISO C++ forbids initialization in array new[/quote] Leave it commented out and it works just fine. I'm not sure why it has a problem with one but not the other. Each object is a 16 byte array. … |
| | Hello, I'm trying to create a matrix that dynamically defines the rows and columns.. Now, everything is fine, apart from when I include a function to output the 2D array.. The error: Matrix.cpp:20: error: invalid types ‘double[int]’ for array subscript ... The code is: Matrix.cpp [code] #include <iostream> #include "Matrix.h" … |
| | Hello Daniweb users, i wanted to ask you guys , if you can help me with making a game with C++, Do you know how to do it? or any suggestions? I prefer RPG Game... So if you have any suggestions, could you help me? Thanks, Jordan  |
 | In my program you should be able to look around smoothly with the mouse, my code works, but I'm wondering if there is any better, smoother way of doing this. My code to get the mouse position as if the center of the window was 0,0 (LookAround() is the passive … |
| | Hi, I'm an absolute beginner in Visual C++ (Express Edition 2010). I've just been trying out this very simple program, and I can't get to use the '\b' tag like I did when I used Turbo C++ v4.5. The cursor moves backwards, but the text does not get erased, as … |
| | Hi, I'm having a major problem with passing GCC link flags in Xcode. I created a C program that creates and runs a neural network using the FANN library. When I compile this command line I use the command [CODE]gcc main.c -o train_test -l fann[/CODE] to link the fann library … |
| | I need an algorithm that finds how many prime numbers are in a set interval; the interval maximum range is 1 000 000 so a brute force method of checking every number is kinda inefficient |
| | what is FPE? how do i correct this in my program....tried everything...:sad: [code]#include<iostream> using namespace std; int factorial(int a) {int f=1; for(int i=1;i<a+1;i++) { f*=i; } return f; } int main() { int factorial(int); int n;cin>>n;int x=n/2,y=n%2,d,e,f,sum=0; for(int i=0;i<n;i++) { d=factorial(x+y);f=factorial(y); if(x==0) { e=1; } else { e=factorial(x); } if(y==0) … |
| | btw this is a part of a battleship code i want to know what the integers a,b,c,d,e,f... do I know this has something to do with placing ships randomly but it is a little complexed for me. I'd appreciate it if someone took their time to explain it [CODE]int placeship( … |
| | i have made a (not soooo good ) game using vs2008 i have a controller class which holds a level loader class once i quit the game i do [CODE]delete Controller // from the main file[/CODE] which goes to the controller destructor : [CODE]Controller::~Controller(){ delete screen; delete loader; delete eventer; … |
 | [CODE]#include <iostream> #include <windows.h> #include <conio.h> using namespace std; int selectHero(); void Str(); void Agi(); void Int(); void Kunkka(); int Item1(); int Item2(); int ChooseI(); void NormalAtk(); void AInormalAtk(); void Choice(); void Attack(); void Skill(); void Defend(); int Run(); void AIchoice(); void AIattack(); void AIskill(); void AIdefend(); int AIrun(); void … |
 | Here is a sort of description to my yet-unimplemented AI agent to play tic-tac-toe. It doesn't have to win, it just has to work, and my description of it has to be good. Tell me what you think: [code] /* "RATION_AL" The goal of my agent is to implement an … |
| | [CODE]char *ReadFile(string& filepath) { string buffer=""; char temp_char; ifstream file; file.open(filepath); while(!(file.eof())) { file.get(temp_char); buffer+=temp_char; } size=buffer.length(); char *result1=new char[size]; for(int i=0;i<buffer.length();i++) { result1[i]=buffer[i]; } file.close(); return result1; }[/CODE] code looks pretty normal right? but when I run it with the rest of the program this happens... [url]http://imageshack.us/photo/my-images/267/chararray0001.jpg/[/url] [url]http://imageshack.us/photo/my-images/28/chararray0002.jpg/[/url] [url]http://imageshack.us/photo/my-images/11/chararray0003.jpg/[/url] … |
| | guys i have a little problem in my file handling program that is i cant get the whole file to be saved just the end portion i want to know why this happens and how to counter it [CODE]// file handling flag testing and practise.cpp : Defines the entry point … |
| | The program is supposed to compute the values of [URL="http://mathworld.wolfram.com/GammaFunction.html"]Euler's Gamma Function[/URL] using an infinite product (formula #15 in the link), and it does so decently for low values, but the error gets too big for bigger values. Using both Mathematica and Maxima for reference this is what I get … |
 | Ola' daniweb, long time no see. I've been absent for a while, mostly due to not having any problems to ask about, but also because I got one of those annoying 'job' things ^_^. Anyhow, I'm not terribly familiar with C# (being from c++ land), however I've got to use … |
| | Hey everyone, I've made basic Apps before and I'm a beginner to C++ i need help with functions on a calculator [url]http://i40.tinypic.com/f2r0i0.png[/url] This is my current GUI for it, it has no functions yet, could anyone please tell me if i click on the buttons that it would show on … |
| | Hello, I'm creating a Matrix, that the user can manually define the rows and columns.. (This will be defined in a class) But, I'm having trouble resizing the vector to what is set in main.. Here is the code: Matrix.h [code] #ifndef _Matrix_h #define _Matrix_h #include <vector> using namespace std; … |
| | I need to make the last 5 bits of the unsigned int become zero(1111_1111 to 1110_0000) There are two solution [code] unsigned int number = 0xFFFF; unsigned int temp_one = number & (~0x1F); unsigned int temp_two = number >> 5 << 5; [/code] which one is faster? I write a … |
| | [CODE]//So I'm writing this program that converts change into smaller denominations. //For example .97 would be 3 quarters, 2 dimes, 0 nickels, with 2 remaining. //The program compiles and runs but it's not the completely correct output. Can //anyone help. //Converts change into small denominations. #include "stdafx.h" #include<iostream> #include<conio.h> using … |
| | There is a threaded bst class program. I want to have a delete function for this class. every time I tried to write, not work. how can I have a delete func as simple as other funcs. I googled a lot but all codes are written with structs not with … |
| | I have a DLL file written in C++, using Microsoft Visual Studio 2008. The socket class coding is an adaptation of [url]http://www.adp-gmbh.ch/win/misc/sockets.html[/url] and the whole thing works when compiled as a 32 bit DLL, but the Internet connectivity does not work when I compile it as a 64 bit DLL. … |
| | [B]Parallel Resistance[/B] i am trying to input and calculate this for any given number of resistors and any value of the resistors. the formula is [B]1/R= 1/R1+1/R2+1/R3.........+!/Rn[/B] Could someone tell me how to input this into C++ could u explain a little on how to do this aswell. Thank you … |
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