49,761 Topics
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| | When define an template linked list inside an in order linked list I can't access the nodes of the internal template linked list by first and next functions Or in other words the template class can't be passing by reference??? :-O  |
| | Hi everyone, i have a problem with constructing a big matrix from small matrices. could you please help me figure out? my problem is: i now have 200 matrices (1000 x 5) => i now want to build them in a big matrix (1000x1000 =(5 x 200)) just store the …  |
| | hello, i am trying to make a program to calculate round trip time.I know ping command can be used for this purpose but i don't know how to use this ping functionality in my c code.so can anyone help me? |
 | I am a beginner to C++ and DirectX I tried learning on my own a few years ago but had to stop ( personal reasons) Now i would like to start again. I like graphics a lot. i wanted to program a 3d aquarium like Dream aquarium (check it out …  |
| | i learn the basic c++ , i would like to learn how to create a gui program, where can i find some sourse to learn ? and the static , i dun understand it mean , can any one help |
| | hi ppl, i just starte a new program, but now im having a lot of error wich "i think i wrote the code well", but cant understand what they mean... here i pass the code... [code=cplusplus] #include "stdafx.h" #include <iostream> #define ingresos_totales 5; using namespace std; int main(int argc, char* … |
 | I have a few ( slightly related ) questions about binary i/o in C++, I can't seem to find full answers to these anywhere.. - Is there any way to tell if an i/ostream passed to a function has been opened in binary or text mode? - If not, are … |
| | Hi everyone, I got problem with coding of matrix-matrix multi plication; Please help me to figure out this my problem is: Having a matrix, U2[k][i][j], with dimension of 9081x84 and other matrix, U[m][i][j], with dimension of 9081x4 i now want to multiply transpose of A with B, following is my … |
| | #include<fstream.h> #include<iostream.h> #include<string.h> using namespace std; class emp { public: char *per; int i; int write2() { ofstream out("ss.txt",ios::app | ios::binary ); cout<<"Enter some character ....\n"; per = new char[100]; cin.getline(per,100,'\n') out.write("\n",1); out.write(per,strlen(per)); out<< "\n"; per = "asdfgh"; out.write(per,strlen(per)); out.write((char *)&i,5); out.write(per,strlen(per)); return 0; } int read_2() { char * … |
| | I recently started coding in Linux and was using Dev C++ in Windows. I use geany as my IDE. Its simple and lightweight. I was wondering about tags after seeing a lot about ctags and stuffs. How can I add support for variable and function auto completion in geany. I … |
| | Ok I am new to C++ and I am having a hard time trying to figure out how to Sort the array I have created. I dont know if I am on the wrong track or if I am on the right track. Someone PLEASE help!! I have to sort … |
| | Hey all names william I am in my first year uni - doin bachelor of computin and hence dont no much bout programming I have to submit this assingment tomorow and am confused as to what I am supposed to be doin I would appriciate any elp from any1 I … |
| | I have an assignment that asks to create a program to input students names & test scores. After which the user gets the option to calculate the average and print out which students were below, and/or print out the highest score and which students had that score. Since the total …  |
 | I have been using vector in c++ lately, but I needed to speed up my code a bit so someone recommended I use regular arrays. My question is 2 part - 1) I thought you couldn't do this!!?? For some reason it is working with no problem? [code] int a=2; … |
| | I have Copied some Forms codeView into a new project and now I try to open a Form with this code but when doing this I will have a message like below. On the left side of the designView, I can see all forms that I have in my project … |
| | Hey all, Just a quick C++ question from me...I'm sure this is info that is available on the web somewhere but a couple of searches weren't very fruitful. Would it be possible for someone to provide an example of the following? [list] [*]Calling/opening and executing a batch file from within …  |
| | If I have 2 Forms in my application and Form1 is my startingForm. Is it possible to make Form2 as my startingForm instead. What indicates in the code that Form1 is my startingForm. Is this possible to do ? |
 | Hello I'm reading through Scott Meyer's book Effective C++, third Edition. I'm having an issue understanding Page 14, Item 2, paragraph 4. The below is a snippet of code with an explanation quoted from his book-- [code=c++] // Author: Scott Meyers class GamePlayer{ private: static const int NumTurns = 5; … |
| | I'm enjoying the book Effective C++. It has highlighted things that I've looked over, never heard of, or never even though of before! However, even with this book my understanding of C++ still doesn't seem to be solid. For some time now I've been curious about how binary data is … |
| | I'm working on some C++ excercies in my book and now I'm supposed to write a program that converats a number of seconds into days, hours, minutes and seconds with the help of arithmetic operators and integer and float variables. Nothing to fancy that is. It ended up looking something … |
| | Hi everyone, I'm new and hope someone can help with my problem. First of all English is not my first languaje so I hope you all can be a little patient with my writing :icon_cheesygrin: Here's the thing. I'm new to C++, and I'm using Borland 3.1 (this is the …  |
| | Hi im trying to make a maths program and im having trouble with one of my sections where im currently just using '+' incorporated in to a do while loop until the score = 10 though i'm stuck on how to make it randomly change the question between + or … |
| | I want someone to help me write a program to read the integer elements of two arrays A and B of different size from the user. And use link list to save this elements instead of arrays. And then do the following to the link lists given: 1. Sort link … |
| | Main.cpp [code=cpp] #include <stdio.h> #include "CServer.cpp" class EventReceiver: public CServer { void OnClientReceive(CServer* SVR) { char* Packet = SVR->GetReceivedBuffer(); int packetsize = SVR->GetReceivedSize(); PCLIENT_HANDLE clientthatsent = SVR->GetLatestReadClient(); printf("\n Packet Recieved - %s", Packet); CLIENT_LIST_LOOP(SVR) if(CUR_CLIENT_SOCKETID != clientthatsent->sSocketId) { SVR->SendPacketToClient(Packet,packetsize,CUR_CLIENT); Sleep(250); } CLIENT_LIST_END_LOOP(SVR); } void OnClientConnection(CServer* SVR) { PCLIENT_HANDLE ConnectedClient = … |
| | Im looking for a way to "ping" an ip and if it replies back then its "on" so it returns true else it returns false. If anyone can either show me a way to do this or point me in the right direction i would appreciate it. |
| | im just wondering how you use send() and recv() like: [code=cpp] bool blah() { if(recv(send("10.1.1.1", "HI"), szBuffer, sizeof(szBuffer)) { MessageBox(NULL, "WORKED", "??", MB_OK); return true; } else { MessageBox(NULL, "FAIL", "??", MB_OK); return false; } } [/code] i know that wouldnt compile but you get the point? |
| | I got following algorithm for finding permutation but I can't code it. Can any one can code this permutation algorithm in c++ using recursive method as below [I]bool nextPermutation(int array[])[/I] 1. The first permutation is the permutation represented by the sequence (1, 2, …, n). 2. The last permutation is … |
| | Hey guys. Question is. I need an example of a working code for a multiset. Hope theres someone out there who can help me on this, kind soul. Probably a multiset with a set of a grocery lists; not numbers you know.. for eg... {eggs, tomatoes, onions, chicken, shampoo..etc} you … |
| | This program does not have any input. Instead, the main routine, called the driver, calls the Pay function, testing it with a variety of parameters. Your job is to write the function. It should calculate the rate of pay, but in this case, the function returns the amount of pay … |
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