51,593 Topics
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| | I have this problem: I have a data structure called DACT, that I convert into a string line and send to another computer. I have a file full of DACTs, and I need to send them all to another computer. When I send only 100, it works fine, but when … |
| | I just downloaded a document containing some pointers exercises. The statement of One of its questions is as follows: [COLOR="Green"]Write a function that returns a pointer to the maximum value of an array of double's. If the array is empty, return NULL. double* maximum(const double* a, int size); [/COLOR] It … |
 | How can I get a new line in messagebox? I have two TCHAR arrays, I can print both to separate MB but not both to one This is what I'm looking for (if you can understand what I'm trying) It obviously does not work. [CODE]TCHAR one[] = _T("file\\path\\here"); TCHAR two[] … |
| | my professor gave a .o file and we are supposed to write a function that links to his file in ssh. his code is struct grades { int lab; int prog; int mid; int final; char name[10]; } void fillArray(grades a[ ], int & num); these two are given and … |
| | I am new to c++ and i am supposed to do a test case using my stub with hand calculated mean & standard deviation of number of students that are saved in the .o file in linux. my code is [code] #include <iostream> #include <fstream> #include <cmath> using namespace std; … |
| | Hi guys, I have a windows form frm1 that calls another form frm2 by the following code: [CODE] this.hide(); frm2 new_frm2 = new frm2(); new_frm2.ShowDialog(); this.Close(); [/CODE] it takes about 5 sec for the frm2 to show so I'd like to use waitcursor. I found that the waitcursor can only … |
| | Hello!!! I read 3 c++ books on dos and what now? I think i want now to programming on windows but which language i can programming ? |
| | Hi all I think that I should start this by saying that I am fairly new to C++. Currently, I can only write basic OOP programs. However, I have been given a task at work to compile and link some old code that we have (roughly 10 years old) to … |
| | I need to write a main() function, that loops over a bunch of numbers from 0 to 100, calls another function called isPrime() for each of them, and print out the numbers that are prime. I'm new to C++ and any help would be appreciated. |
| | Hi, I've been trying for the past couple of hours to get this modal dialog box working, it is basically supposed to ask for text input and once entered will open a message box with that text. At this point though I'd be happy to just get the box up … |
| | Hi there, I am working with a 2D array, my c++ program reads input from an external file and stores it into a 2D array. Say, for example, this is my input file: 9 5 6 2 4 1 0 8 6 7 3 5 2 9 5 8 My … |
| | Hello guys, I am trying to declare a two dimensional array in C++ on runtime. For this purpose I am asking the user about how many rows and columns should be created in the array. I have written the following code for this purpose. Apparently it is working just fine. … |
 | I need to make a function: [CODE]void GenerateNormal(float x[3], float y[3], float z[3], float &ox, float &oy, float &oz) { //Calculate coordinates for a glNormal and return them ox,oy and oz }[/CODE] I have a sinking feeling that the math will be quite difficult. Can anybody help me? |
| | Hi! Using string, ifstream and ofstream object. Compiling - ok, but give a run-time error after printing Name in ReadData() function. My Person class include only one string member "name" and function "Name()" which return string object "this->name". And constructor with string parameter of course... [CODE]#include <iostream> #include <fstream> #include …  |
| | Hi all, I am quite a beginner to C# and ASP.NET development so if you can help out it would be really appreciated: I wish to build a small library of custom functions to be used throughout the entire website. For example say I need to build 5 functions which … |
 | [CODE] cout<<(char)290<<endl; [/CODE] I get " as the answer. [CODE] cout<<(char)20000<<endl; [/CODE] Here I don't get anything. When char can take integer values from -128 to 127 and both 290 and 20000 are welll out of this range, then why is there an output in the first case?  |
| | i dont see the point or why you would ever want to upcast an object for example class Shape { ..... }; class rectangle : public shape { .... }; int main() { rectangle object1; Shape *shapePtr = &object1; return 0; } |
| | Dear friends: I am working on a C++ computational geometry code, and i want to make sure whether two points are the same by comparing their x y and z coordinates. The coordinates of the points are in the double formate. since the pc can not represents the double number … |
 | I'm just wondering what kind of free SQL API I should use to connect with c++ so I can use a database with my programming to make it a lot nicer and more neat for my objects... I've done a bit of search and fount things like ADO or ODBC... …  |
 | hey, I was recently programming my own variable equation solver in C++ and out of nowhere, my computer crashed and all my code was erased. My computer booted up just fine but none of my code was there. i dont have the guts to start all over again. I dont … |
| | Hi I am in a bit of trouble. what is nedded: Reading a text file character-by-character, using the "get(char)" function. Count the words in the file which contains "w" or "W". The possible delimiters are: '\t','n',' '(space). Do not use arrays. The codes: [COLOR="Red"]MAIN.CPP[/COLOR] [code] #include <iostream> #include "enor.h" using … |
| | Hello, I am very new to C++. I am learning the language by myself. I tried to make a program where the user inputs how old they are (in terms of years) and the program will output how old the user is, in terms of months. The problem I am … |
| | I need to verify with some one if my code is right i have to submit it in 3 hours from now and any help will be welcome The instructions are: Using an appropriate definition of listnode, design a simple linked list class with only two member function and a … |
| | I created my own Pong, but the ball is not moving. I don`t have any error in my error list. In this game I used time.h to move the ball. Why the ball is not moving? What is wrong with my code? Thanks in adbvance [CODE]#include <allegro.h> #include <time.h> int … |
| | Hey there, was wondering if anyone else has this issue. I've checked to see if it was my drivers, but no. the GL window wont move, it won't accept any inputs at all. but it shows everything else. I've tried everything in my memory bank.. and still nothing. this is … |
| | I am studying viruses and trying to figure out how the FLEX module works for C++. I have taken classes before on regular languages, context free, etc. Is FLEX dealing with regular languages or regular expressions, and also what is the difference exactly? Could you give an example of how …  |
| | Hello, I'm a C++ newbie with the following problem (I've used the search function but haven't come up with what I'm looking for. I'm not asking anyone to write this project for me, but a lot of good pointing/ideas is going to help me a lot): I currently have a …  |
| | Hi All, i'm here due to an unexplainable winsock problem. I've wrote a simple TcpSocket class to wrap in an object oriented way, the winsock functions. For testing purposes i've written two applications too, a client and a server, wich just send/receive 10 bytes in a giant loop. Now the … |
| | Can someone please tell me about an alternative command that I can use instead of the [B]system()[/B] function? I have another question - If [B]system("pause")[/B] only pauses the program before it exits, can I use [B]getch()[/B] funtion from the [I]conio.h[/I] header file for that purpose.(I know i can use the … |
| | Hi everyone ... I've a problem with fill color. I just want to fill a part of it. For ex.: if we have a face with eyes and red mouth, i wanna to color each part of the face when the user click down the mouse. Thanks for your advice.... |
| | Hey all, I want to add a vector to my inventory class so that it can hold whichever item data type is passed in. I'm having trouble with setting the size of the vector so that I can put items in it. Here's my code.. Whenever I run it I … |
| | I wrote this test code trying to work out a problem. The code gives the correct answer for the example (zero) but to understand the problem i need to understand what the code is doing on a sort of step by step basis. In other words how to do it … |
| | Hi. I'm trying to delete a line from a Db file that I've created. I'll explain: I'm making a Db of people, which is consisted of id, first and last names - each one in a different line. When I want to delete a record, I wanted to copy the …  |
| | Hey guys , i have a small problem regarding calculation in c++. Here is an example below [CODE]int main() { int f = -32; int d = 2; int re = d - f; int re2 = 2 - (-32); int re3 = 2 - - 32 } [/CODE] The … |
| | I am unable to solve the errors found in this program. Can someone be kind to help me solve it? Thanking in advance. :) [CODE]#include "stdafx.h" #include <iostream> using namespace::std; class detail { protected: char address[50]; int age; char name[25]; public: int a; int b; int c; void getdetail(void) { … |
| | hi i am creating a login page in C#.net windows application and i have a remember me checkbox in the login interface. can some one give me a tutorial to code the remember me check box in the C# windows application thank you  |
| | Hi. As far as I know, [B]typedef[/B] is used to assign an alias for a structure or type of data, am I wrong? Is there something more to know about Typedef? thanks |
| | Hellochina, I rarely use C++ but yesterday I came up with an idea for a program. What I want to happen is for the program to take a string, and for every letter, replace it with something else (for example, the letter after, or the number of the letter in … |
| | Hi , I m doing my project in vc++.. I need to interact my vc++ project with NI MAX software.. I m taking Frame API for ineracting to UPS . I included "nican.h" header file for that. I didnt missed any brackets... but while executing i m getting error like … |
| | I use Borland C++ Builder ver 5 - and always want to make stand alone exes. I now wish to create and use my own libraries. I made a simple .cpp, ran "bcc32 -c mycode.cpp" to create mycode.obj, then ran "tlib mylib +mycode" to create mylib.lib. I created a .h … |
| | [CODE] #include <iostream> using namespace std; int main() { cout << "enter" << endl; int a,b; cin >> a >> b; cout << a << " " << b << endl; return 0; } [/CODE] in the code given above when the input is INPUT: 45 12 OUTPUT: 45 12 … |
| | can i find out how much memory(pysical) a specific process(application) will consume befor launching it? i wrote aan app that manage the memory usage and say i have 10% memory left to use i want to predict approximantly how much mem is needed for an app befor launching it... and … |
| | Hey everyone. I was just wondering if anyone who programs for a living or just as a hobby ever gets bored of it? And if not, why do you not? And if you do, what keeps you wanting to continue doing it? Thank you. |
| | [code] //Mohammad Sharaf Ali k092094 #include <iostream> #include <iomanip> #include <string.h> #include <math.h> using namespace std; struct tree { char a[20]; int s; struct tree *left,*right; }*root=NULL,*tt[20]={NULL},*temp,*temp2,*t2,*ri,*le; struct pqu { int info; char a[20]; struct pqu *ptr; }*front=NULL,*t,*par,*t1,*p1,*p2; struct pqu* fp(int info) { struct pqu *p=NULL; for(t1=front;t1->info<info&&t1!=NULL;t1=t1->ptr) { p=t1; } … |
| | Small introduction; been using C++ for two years at college level, and now I've outgrown the console. Having a little trouble in wxWidgets though, since I apparently don't understand how wxButtons work. What I want to do is have a dialog come up with text entry, and an ok button … |
| | OK so I have to compare Java with C++ and I need to address the following topics - The following topics should be compared: - programming constructs that are in one language and not the other, differences in - programming in one language or the other should be addressed the … |
| | Why constructor can not be defined as virtual? Thanks |
| | I somewhat understand the concept of the parentheses overload when you need to use an object as a function. The question that I have is why does the max variable in the listed code below always input 2. [CODE] /* Purpose: This is the header file of randomInteger.h The class … |
| | [url]http://www.ibm.com/d...rary/pa-dalign/[/url] Can anyone plz explain why , according to this article, an x86 processor can't read simply 4bytes from an odd address and has to make 2 reads then shift bytes to get aligned to the correct value? I dot see why a processor can't read from an odd address …  |
| | I am trying to get consecutive words in a document using flex. Normally the forward slash should work, but for some reason it is not. Also I need to account for spaces. So I can't seem to use that regex character for this, how do I account for consecutive words … |
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