51,593 Topics
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| | Hey guys! I was wondering if anybody could help me out with my C++ programming. I'm currently trying to sort out a vector of class objects by their member variable but i dont know what i'm doing wrong or missing. I googled alot of things and read through alot of …  |
| | Ok well first I'll tell you the 3 errors that I am getting... All 3 errors are near the bottom of the code [LIST] [*]main.cpp(103) : error C2664: 'errno_t strcat_s(char *,rsize_t,const char *)' : cannot convert parameter 3 from 'char' to 'const char *' [*]main.cpp(105) : error C2664: 'SzToLPCTSTR' : …  |
| | My assignment was to write code to Delete an ith node on a linked list. Will this function accomplish that? [CODE]void deleteIthNode(int el){ IntSLLNode *tmp; tmp = (IntSLLNode*)malloc(sizeof(IntSLLNode)); tmp = head; IntSLLNode *oldTmp; oldTmp = (IntSLLNode*)malloc(sizeof(IntSLLNode)); oldTmp = tmp; for( int i = 1 ; i < i-1 ; i++ … |
| | Hello, I have just a simple and basic question. Write a program in c++ to swap 2 numbers without using a third variable. :D  |
| | hi every one. can some one please tell me steps to make an MFC application in vc2008? showing a blank window. thanx in advance |
| | this is my homework.....this is all new to me, i really need help, im reading the book but is confusing, any link to a tutorial would be good to give me an idea on what i need to do please!!! ..... In this assignment, you will write a program called … |
| | Hi to everyone.Please can someone assist me on how to create internet/web search engine using c++ step by step including the flow chart. |
| | Hi, I have a problem here with the c++ if statement. if (adult=1) { hotel=(adult*hotel)+(children*0.5*hotel) +(baby*0); break; } else if (adult=2) { hotel=(adult*260*0.85) +(children*0.5*260) +(baby*0); break; } else if (adult>2) { hotel=(adult*hotel*0.8) +(children*0.5*hotel) +(baby*0); break; the above is a small part of the code i'm doing. Problem here is, It … |
| | hey im now starting prog in c++ n im being honest- im REALLY flustered i have to create a program to get information from a user, put the info to a file, create another program to read from that file, calculate total scores of x amount of students n grade … |
 | Hello! How is everyone? I have been working on this for about a week and a half, and I need it to function properly. I am going to be using this program to build my next assignment, thus needing it to work properly. My problem: I am trying to write … |
| | [B]i need c program for [/B] [B]1.[/B] "[B]menu driven in c program using pointers[/B]. [COLOR="Red"]1.comparition of two strin , 2.length of two string, 3.reverse, 4.palindrome all without using string function" [/COLOR] [B]2.[/B] "[B]menu driven program using pointer with array[/B]. [COLOR="Red"]1.addition of two matrix, 2.subtracion of two matrix, 3.multiplication of matrix, … |
| | heah pls can u send me some progmmes to my email id ie...[I]<<snip>>[/I] pls |
| | anyone can send some programs about graphics. ..?? just wanted to learn more. .. this is my eadd:[I] <<snip>>[/I]  |
| | i want to create web browser with manually using c++ |
| | Hi, i'm making a matrix class, here is my code: [CODE]#ifndef MATRICE_H #define MATRICE_H #include <iostream> template <class T> class matrice { public: typedef int sizet; typedef T valuet; matrice(): _data(0), _row(0), _col(0) {}; //costruttore default matrice(sizet rw, sizet cl) { //causa errore in valgrind _data=new valuet*[rw]; for(sizet i=0;i<rw;i++) _data[i]=new … |
| | Here is my code [CODE]#include <iostream> using namespace std; int searchList(int [], int, int); int main() { int numItems = 18; int position; int accountnumber; int accounts[numItems] = {5658845, 4520125, 7895122,8777541, 8451277, 1302850,8080152, 4562555, 5552012, 5050552, 7825877, 1250255,1005231, 6545231, 3852085,7576651, 7881200, 4581002 }; cout << "Please enter an account charge …  |
| | I've homework to complete. but unable to finished due to I'm did not have the idea on how to read from a txt file and write back on it. what I've complete is just entering data via cout and cin. i know that i need to use the fstream and … |
| | I've just read chapter 8 of accelerated C++, which covers template functions. From my understanding if you use a template in a function that function must be included in the header file, as opposed to a source file. Am I correct in thinking this or am I missing something obvious? |
| | I am writing my program for the bullseye dartboard question I posted in another thread. The link is [URL="http://www.daniweb.com/forums/thread255853.html"]here[/URL]. Anyways once I debug, it brings up 2 errors that read: LNK2019 Error: unresolved external symbol _main referenced in function _tmainCRTStartup and the file is MSVCRTD.lib and the other error is: … |
 | So I'm working on this class, which is basically to wrap a char into 8bools, and it works so far, however I'm running into a problem, in the dedication of values, since I'm to use the overloaded array operator, as well as the overloaded assignment operator, at once, however I …  |
| | Restarting C++ class after lengthy break, seems I've forgotten a lot. I can't seem to get a cout to indicate that a file record has been read. I created a text file of just one record to keep it simple: an SS number, first and last names, and five exam … |
| | I am trying to do this C++ homework, my second one, i am very new to this and have no idea what is going on i would appreciate any help. thank you. below is the homework problem and what i have so far. i know that i need to create … |
| | So I've been working on two small programs to calculate prime numbers, fast and memory efficiently. Both my algorithms are based upon the 'Sieve of Eratosthenes', and I know that the 'Sieve of Atkin' would be the way to go since its faster, however I'm just trying to optimize the … |
| | Does anyone know if there are any issues in using the basic ODBC Api for database access on 64 bit Windows Vista/7 systems? This has been my preferred database access technology for a long time, and I'd prefer not moving to ADO or something else if I don't have to. … |
| | So I am trying to compile this program, and I know that the only problem with my code has to do with the "while" section of the do while loop, either that or something to do with those variables. I declared the variable "repeat" as a char, and prompted the … |
| | hi all. i need to work with CvFitLine , but i can't find any examples of what it does. basically i need to take a set of points (lets' say 3) , draw a line between them, and than i need for every point sum the distance of the point … |
| | So I'm working with OpenGL, and DevIL to load some JPEG into my program, and I've had some trouble, I've isolated the program in a simple sample program (uploaded), the program is, that when I load the standard file, that came with the guide ("Geeks3D.jpg") it loades instantly and runs … |
| | I want to select 5 points set from n given points one by one exhaustively. In other words i want to do nC5 in c++ but not getting a simple way to do it. Please tell me any solution. |
| | hi, can somebody please tell me what would be the problem that it couldn't open the file? i compiled it in dev c++ and it gives me no error. the file 512.dat is in the same directory. [CODE]#include<iostream> #include<fstream> #include<stdlib.h> #include<stdio.h> const int sc = 768; int main() { int … |
| | I need to develop a C++ DLL in a legacy system, so I have to work with Visual Studio 6.0. The project I am working with was copied from a "template" project that someone created a long time ago. I copied it, made lots of changes then realized I also … |
| | Hello everyone....this time a have a competition program that I want ur help but this time i just want from u answers to some problems that i faced when i was working on it : this is the program: Mail merge is a software function describing the production of multiple … |
| | hey everyone, so im trying hard to get this assignment done by tomorrow but after sucessfully compiling, I am now getting linker errors. I have to use Vi for this assignment but never the less here are my linker errors: assign5.o: In function `main': assign5.cpp:(.text+0x1026): undefined reference to `Print(cStudent (&) …  |
| | Hey everyone, I am writing a program for my c++ class to take student records and organize them according to the students last name. All data is stored to a class and I have created an array of class objects(its part of the assignment). I am using Vi to compile … |
| | It seems even if I place #define _CRT_SECURE_NO_WARNINGS at the top of my C++ source files, if the warning level is set to 3 or 4 I still get all the warnings. Is this the way it is supposed to be? I like to have my warning levels set fairly … |
| | I need help with running two function at the same time . MultiThreading? [CODE]void Function1(int n) { while(n<10) { n++; } } [/CODE] [CODE]void Function2(int n) { while(n<20) { n++; } }[/CODE] If these are the 2 functions,can someone tell me how I can start the 2 together [B][U]from int … |
| | Hey everyone, Browsed through the forums and a C++ book, but can't find what I'm doing wrong. 1)Goal is to pass colors array to a function that picks a color set from 19 options and modifies red, green, and blue to be used in an allegro function. Each color set … |
 | Hello, I just started reading and learning DirectX SDK's tutorials in order to develop skills for game programming. I don't know COM very well (i just start learning it). I read lights, materials, mesh and BasicHLSL DirectX9 tutorials (line by line). I know C++ and math (not VERY good math … |
| | Hello all: I am quite new to C++; so far I have used it for finance-related database management. I need to incorporate code for solving an algebraic problem and I am stuck on how to write the code. I would be grateful for any assistance! The problem I want to … |
| | I'm having a bit of trouble getting string input while i'm in a function. I was wondering how I could input a really long string (about the size of a paragraph). cin >> entryA seems to work, but only with 1 word. Any more and it starts looping getline(cin, entryA); … |
| | Hello! I'm beginning learning C++ and I was wondering, does Visual Studio 6.0 support all of the language features or is it too outdated now? If so are there any free compilers/linkers that I can use for windows programming? I'm also worried about the windows API headers being outdated as … |
| | I want the extract the two values(113.654321 and 114.654321) from the CString CString sValue = "113.123456 114.654321"; I tried to use the TrimLeft function of the CString Class, which is sNewValue1=svalue.TrimLeft(_T(" ")) and sNewValue2=sValue.TrimRight(_T(" ")) but I cannot get the expected value. Can anyone help? Thanks in advance! |
| | As part of my coursework, I have to test my program on a different operating system to the one it was created on, XP. Anyone know of a good compiler for a mac since it is only other sytem in the school? |
| | Hii, The problem statement i am referring to is: Buttons Each cell of an N x N grid is either a 0 or a 1. You are given two such N x N grids, the initial grid and the final grid. There is a button against each row and each … |
| | hey guys! so I need to create a matrix 6x6 and then fill it with random numbers from 0 to 3.... and I need to leave the diagonal of the matrix with 0s... The rows are supposed to be soccer teams so if row 1 wins row 2... the program … |
| | Hey all! I have this assignment for my school project to create a simple address book using classes that do the routine stuff like adding a contact, searching it, modifying it, deleting it... Here is the code but it won't run properly. I tried but couldn't figure it out. It'd … |
| | I have been searching my texts, the web, and DaniWeb for information about how to share data between compiled C++ executables. I've been studying extern variables and named pipes without success. A typical program calls another program like this: float Pi = 3.14; system("AdjustSeaLevel.exe Pi 5.4 11.2 c f g"); … |
| | Hi , M Using the boost library for shared memory . where internally this locking takes place. But due to some reason thread holding the lock died .So when other thread tries to lock the mutex. I t should throw EOWNERDEAD. But here it hangs. (gdb) s 358 mp_mutex->lock(); (gdb) … |
| | I need to write an overloaded function for a pascal triangle. I have to include another function that fits n!/((n-r)!r!), I can't figure it out. Help please! This is what I have so far: [code] #include "stdafx.h" #include <iostream> using namespace std; int my_fib(int,int); int x,y,j; int main() { x=0; …  |
| | Hey guys, I'm new to C and I am trying to find a way to create a file with the following array: [code] char peer1_0[] = { 0x0c, 0x4c, 0x08, 0x00 }; [/code] The original array has a lot more data, but I am just needing a simple example or … |
| | I think I have a good starting point on this, but I still need some help :) First I need to ask the user for the limits of integration and the error tolerance, (that's already done). So when I divide the trapezoid (when the end points are connected) in 2, … |
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