51,593 Topics
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 | I am trying to utilise a development kit for software that we use at work. I think I have found a member function that would address a problem I have and I'm trying to test it. The documentation says that it is used thus: [CODE] int SDKclass::SDKclassmethod( a_data_type** a_data_array_ptr, char*** … |
| | Hey guys I'm trying to create a tic-tac-toe program in c++. This is what I have so far. But it just produces garbage. [CODE]#include<iostream> #include<cstdlib> #include<ctime> #define frz system("PAUSE") using namespace std; //Global Variables const int length = 3; const int width = 3; //Function Prototypes void initializeboard(char [length][width], int); … |
| | Dear friends, do you know how to convert the following codes from C++ into C# ? Thanx for your helps Duy BK [CODE] #include <stdio.h> #include <stdlib.h> #define max 100 int isdigit(char ch) {return '0' <= ch && ch <= '9';} int isoperator(char ch) {return ch == '+' ? 1: … |
| | hi; i m student of MCS-1 i want to make a project in c++; in dat i want to make window... can any one hlp me and tell me how an i do so...?  |
| | hi guys im having an error with my code but cant seem to figure it out. its a windows form and im just trying to make it function but the compiler gives me these errors: [code] 1>c:\\\desktop\\c++\twisttut\twisttut\Form1.h(89) : error C2059: syntax error : '{' 1>c:\\\desktop\\c++\twisttut\twisttut\Form1.h(89) : error C2334: unexpected token(s) …  |
 | Hello, I have been attempting to create a fast class for OpenGL's Vertex Buffer Objects. I finally got all the libraries to work and now i am getting a sigseg but cant see why. Can someone find my error? (I will keep looking too) [CODE]#ifndef GLMODELS_H #define GLMODELS_H #ifndef GOODGL … |
| | [CODE]#include <sys/types.h> #include <sys/wait.h> #include <stdio.h> #include <unistd.h> void *thread(void *vargp); char **ptr; /* global */ int main() { int i; pthread_t tid; char *msgs[2] = { "Hello from Thread A", "Hello from Thread B" }; ptr = msgs;for (i = 0; i < 2; i++) pthread_create(&tid,NULL,thread,(void *)i); pthread_exit(NULL); … |
| | I am having trouble replacing the numbers on my Tic Tac board with the X and O from my if and else if statements. I would also like to know how to make sure how to keep the X and O in place without it being replaced after every loop. … |
| | hi Is there a way to pass a structure into a function in C++? ie if I have a structure of data, can I pass it in and use all the members without having to pass them indevidually? I basically want to pass team data into a function and that … |
| | error: ‘void __stderrp(MattsMatrixSpace::Vec)’ redeclared as different kind of symbol I have a function called "stderr" in my program. I'm not sure where the "__" or the "p" came from. Any idea what this error is related to? PS, the next error is: /usr/include/stdio.h:169: error: previous declaration of ‘FILE* __stderrp’  |
| | Meant mostly for windows, uses system("cls") although you can simply set USE_NON_STANDARD_CLS to false and it will use newlines to clear screen. Test it out. [code] /** * Note: Use at own risk, this is just for fun */ #include <algorithm> #include <iostream> #include <vector> #include <string> #include <windows.h> #include … |
| | Hello, I would like to know how to read multiple files without using DIR. For example, program will search ".bin" file and create a new variable for the file. But the exception is my compiler does not know the directory (like opendir or readdir). I am doing dsp programming. I …  |
| | Hi, First of all i am a newbie, trying to learn machine vision... I am trying to use opencv 2.3 in visual studio 2010 on windows 7 ultimate(64bit). I tried in various ways like pre-built versions, built using vs 2010 from SVN source and not even a single attempt is … |
| | Hi All.. I using VC++ 6.0..with windows XP.. I have bmp image which I would like convert it save as jpeg format.. can anyone teach me the steps..?? Thank you.. Shizu.. |
| | Hi! I created an object (Jack the Pig) in the dynamic memory (heap). Because it is a pointer, I can erase it by delete. So I deleted Jack the Pig, but it is not deleted, because Jack->Row function still is working (writes out Rooooow). Why can Jack->Row function still work, … |
 | if you have read or use [U]Learn C++ in 24hours [/U]is it a good book to learn formor object oriented Programming in c++ is that a good book to learn OBJECT oriented programing to learn graphics... |
| | Hi everybody I'm not sure where to put a question like this so forgive me if I'm in the wrong spot. I've just passed my college course C++ (had VB.net experience... if it matters) with a B. Is that knowledge enough to get a job somewhere or do I need …  |
| | Hi there, I'm having some real issues with restoring a piece of legacy software at my workplace. I have an offending line of code that I can't debug. [CODE]bFound := tblComp.Locate('CompPhone;Title;AddLine2', VarArrayof([sPhone, sTitle, sAddLine2]), [])[/CODE] When the script gets to this point sPhone, sTitle and sAddLine2 are correctly populated. When … |
| | Hi everyone, Does anyone know how to tell if all elements in an array but one are the same. I know how to check if all elements are the same but this other problem has me stumped. Any ideas would be great Thanks |
| | Hi all, I am new to C++ and I am having trouble with the syntax. I am suppose to write code for this question: //Write a program in which the funtion main prompts the user for one of the six letters a, b, p, q, x, or y. The function … |
| | Hey everybody, I need a way to browse your computer's files from a program without the use of a separate dialog box (I'm running in fullscreen, you see). It should start from a specified default folder and list all folders (except hidden ones) and files of a specified format in … |
| | [CODE]#include<stdio.h> void main(void) void change(void); int x=4,y; y=x; { printf("\n The value of x is = %f and the value of y is = %d",x,y); change(); printf("\n The value of x is = %d and the value of y is = %d ",x,y); } void change(void) { x=x+3; } [/CODE] … |
| | I've been attempting to do a basic XOR encoder but I got this problem: Everytime the result of the XOR operation is 10, the app writes 0xA 0xD, and I can't avoid this. Code: [CODE] #include <iostream> #include <fstream> #include <stdio.h> using namespace std; char* readfile(char * filename,int* size){ int … |
| | Hi, I'm pretty new to C++ but have a lot of experience in Python. In python its pretty straight forward to make functions that both take arrays/vectors as input and return arrays/vectors. My thought here is to make a function to calculate the gravitational force between to bodies with mass … |
| | sir i created the strucutre. and i created the vector. i push the structue in the vector how to send the vector to the server . in the socket programming under windows. in c++  |
| | [B]What kind of windows version do i have?[/B] i need to know what version of Windows i have for costomer service from iTunes, but i dont know what version, Windows 7, Windows Vista or what, so how do i tell |
 | Is there a GUI Builder for Code::Blocks, something like BOA for Python? Greetings, Emir  |
 | Hi, i am trying to make a BMI calulator and here is my code: [CODE]#include<iostream> #include<sstream> #include<fstream.h> using namespace std; int main (char argc) { double ff1; double ii1; double ww1; for(;;) { system("cls"); cout << "Enter feet." << endl; string f1; cin >> f1; stringstream(f1) >> ff1; if(ff1 >! … |
 | I'm not sure where this post fits, but after staggering here and there I Thought I would throw it here! I find difficult to make coordinates by hand (Not very good at x-y-z though I know the XY coordinate). Is there a tool that will allow you to draw let … |
| | Why does it always return true?! No matter what I do it says the bitmaps are the same.. I want it to tell the difference between the two bitmaps.. like if they look alike with a slight tolerance to make sure that it doesn't have to be a perfect match.. … |
| | I'm trying to display rotating "HELLO!" in my program, but instead i get a just flashing "HELLO!" rather than rotating "HELLO!" which is mean to display 'H'1st, then 'E', then 'L' and so on in new line. Hope some master here can point out my mistake. [CODE] #include <iostream> #include … |
| | # include <iostream> using namespace std; int main() { cout << "By this program you can know about Whether a number is a or not" ; cout << "Enter a number less than 1000 :- "; int a,b,c,e,f,g,k ; cin >> a; if (a < 1000) b=a/10; k=b+2 ; c=a-(k*10); … |
| | Hi, this is my first attempt at actually making a game that is actually playable, instead of something boring that is just the same thing over and over. The problem that I am having is that when the function startGame(); is called, the program closes. There are no errors, because … |
| | I haven't really found anything on the topic other than its bad to cast, but I would assume there is a "proper" way to accomplish this. To illustrate: Class B and Class C both inherit from Class A. I have a function MyFunction(A obj); In MyFunction() I would check if … |
| | I have a homework question that instantiates 4 node pointers, *p, *q, *r, *t, and the first three have a number, 1, 2, and 3 respectively. I have to draw out (using 'blocks' and arrows) what the memory would look like when these lines of code occur: p->next = q; … |
| | Hi, I am using DEV-C++ and i am wondering how to declare variables in a windows project. I am trying to make a calculator and i need it to declare a variable a certain number when you press a button. I also need it to declare a char after you … |
| | hi : ) I wrote this code for count a specific word selected by user in an array but it have a logic error .. and also is there another way to write it without using pointer ? [ICODE] #include<iostream> using namespace std; int j,i=0; const int size=500; char array1[size],search[100],*cnt; …  |
| | Hi, I have a csv datafile with stock price data that I've read into a vector of structures that looks like this: 09/11/2009 9.30 open, high, low, close, volume 09/11/2009 9.31 o, h, l, c, volume and so on to 09/11/2009 16.14 o, h, l, c, volume //next day starts … |
| | I'm having a problem on try again program.I checked the syntax and yet is still not working.am trying to make a program that will output the student's grade and when the program is finished it will ask whether to try again or not.If the input is y or Y, the … |
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| | Hi I am making a banking system in c++ but getting a problem I am not sharp in programmin if you can help then thanks [CODE]//*************************************************************** // HEADER FILE USED IN PROJECT //**************************************************************** #include<iostream> #include<conio.h> #include<stdio.h> #include<process.h> #include<fstream> #include<ctype.h> //*************************************************************** // CLASS USED IN PROJECT //**************************************************************** using namespace std; class … |
| | [CODE] #include <time.h> time_t whatTime(const char* month, const char* day, const char* year) { time_t rawTime; time(&rawTime); struct tm* convTime = localtime(&rawTime); std::cout << "Today is: " << ((convTime->tm_mon)+1) << "/" << convTime->tm_mday << "/" << convTime->tm_year << std::endl; } [/CODE] When using this code I get the output '7/27/111' … |
| | These days ,I am learning inheritance and dynamic binding. I could figure out what the code means. However, I can't see much point in setting such base classes So,I want to know why should we set up base classes and derived classes |
| | Basically, I made a small calculator. It does the PEMDAS and factorials. Part of my code is here:[ICODE]#include "stdafx.h" #include "iostream" #include "stdio.h" #include "math.h" using namespace std; short MENU (void); void raiz (void); void suma (void); etc..... [/ICODE] [CODE]int main () { short OPC; OPC=MENU (); do { switch … |
| | i'm trying to add two fractions via a function and it works. the problem is that i have to print the fraction in the main( and i have absolutly no idea how to do that) other than that the program works fine. [CODE]#include<stdio.h> #include<conio.h> #include<iostream.h> int frac(int,int,int,int); void main() { … |
| | Hi, I am trying to change this program to compile in g++ compiler in terminal in linux. I have reached a point where I am stuck. I would really appreciate some help. I am getting the following errors: test@linux:~/signalgenerator> g++ -o audio audio_backup.cpp -lasound audio_backup.cpp: In function ‘int main(int, char**)’: … |
| | I have run into a unsolvable runtime error, I always get the message invalid floating point error, with the following C++ program. This program reads floats from a file(float.txt) 1.56 .98 5.78 Then sorts to put the largest float on top. But when I try to read this I get … |
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| | Hi my PC has no sound and the 'C-Media AC97 Audio Device' in the device manager has a yellow exclamation mark next to it. I have tried un-installing and re-installing it but this does nothing. Can anybody tell me how to fix this or how to aquire a working device …  |
 | My code for the calculator is: calculator.h [CODE]#ifndef CALCULATOR_H #define CALCULATOR_H #include <QWidget> #include <QGridLayout> #include <QLineEdit> #include <QLabel> #include <QPushButton> #include <QLCDNumber> #include <QString> #include <QMessageBox> #include <QErrorMessage> class Calculator : public QWidget { Q_OBJECT public: //constructor Calculator(); public slots: //function to add the two numbers that the user … |
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