49,766 Topics
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| | hi i have this problem and i don't know where exactly i must search if you can pass any tutorials i'll be grateful thanks. Find Counter Examples that prove the following statements are wrong : 1-f1 (n) - f2 (n) is O(g1(n) - g2(n)) 2-f1 (n) / f2 (n) is … |
| | I was given an assignment to complete on database, i have created it and also works but crashes after executing once, check it friends and please help, if you can modify or make it works my time is really limited and am unable to find a solution, friends be graceful …  |
| | In oreder to implement a routing algorithm , I need to maintain a router table that is to be updated .What data structur is to be used for this? Please help. |
| | I had posted this before. But I am more on the right track. The places that I need help with have something saying like "need something here" or "need to fix the way it is displaying" I can't figure it out. I also am not sure if the multiplication portion …  |
| | Hi please help. Any help would be appreciated :D I have to write a program to read data from a large text file, analyze it, and output the results of the analysis to a data file. there are two data files to process. Problem: Using airborne sensors that record GPS …  |
| | Thanks for reading. I installed VS2010 after a drive crash, prior I had VS2005 and everything was fine. Now on compiling a C++ app that was fine previously I am seeing a couple of errors which I just cannot figure out. Error 1 error C1189: #error : This file requires … |
| | I have two functions. One is supposed to fill in an array, and the other takes that new array, finds the lowest number in that array, and prints the subscript. int getNumAccidents(int acc[], const int size); [B]Fills array num_acc[][/B] int findLowest(int acc[], const int size); [B]Takes num_acc[], finds lowest value … |
| | This is an assignment that I'm having trouble with, these are the 2 questions I'm having trouble with. 2. Write a loop that counts only the odd numbers out of the first five numbers entered from the keyboard, but does not count (skips) the number 7. Use the keyword continue …  |
| | I am trying to write a C++ program that will list the perfect numbers between 1 and 1000. I also have to print the divisors to confirm the number is perfect. I started by trying to find the perfect numbers. Here is my code. Please help. #include <iostream> using std::cout; … |
 | Dear all this program create a linked list of numbers while you dont enter 0. then bubble sort function is called and finally display function shows sorted list. I wrote it by Borland 5.02 . Have a good time! |
| | I have to write this code for my homework assignment. I am in an introductory C++ class, VERY introductory. We had to write a blackjack game, but follow the book at the same time, I know there are many easier ways to do the things my code says, but we … |
 | I have a problem that I am having trouble solving. I have a string of undefined length containing '0' or '1'. I need to convert this string to decimal... but I CANNOT store it in anything but another string. My issue is how to do this?! I have been thinking … |
| | Here is the prompt of what I have to do: Overview In this assignment, implement a class called Complex, which will be used to represent a complex number. A complex number is one that is comprised of a real part and an imaginary part. It is typically represented in the … |
| | I was given an assignment to complete on database, i have created on but crashes after executing once, check it friends and please help, if you can modify or make it way, i'll be graceful. Please find the coding in attachment section. thanks hope will get good response |
| | Hi Everyone, I want to seek advice on how to acquire to strong background in Client-Server Programming, i mean learn it from scratch since having no knowledge about it but with networks Thanks  |
| | Hi, I use the stl features to deal with string conversions, especially facets. Now, I am faced with the task to lower a string except its first letter. Please note that I am dealing with multi-byte characters and so I cannot simply replace the first character of the string with … |
| | i have write that code i m new in programming this code doesnt work in one source file but when i type exact same in other file it start working [CODE]#include <iostream.h> main() { char std1[20], std2[20] cout << "enter your name student"<<"\n"; cin >> std1; cout << "enter your … |
| | Hi, I'm trying to link c object with c++ (using QT Library) object and find the following error. tonysun:~/tmp# g++ -c main.cpp tonysun:~/tmp# gcc -c mainlib.c tonysun:~/tmp# g++ -o main main.o mainlib.o [ICODE]main.cpp:(.text+0x64): undefined reference to `para_prep()'[/ICODE] <<main.cpp>> [CODE]#include "mainlib.h" int main(int argc, char *argv[]) { para_prep(); /* Here are … |
| | Hi all, I have some code as following. BOOL qw = ExtractResource(AfxGetResourceHandle(), IDR_DLL1, _T("C:\\VBDLL.dll") ); bool ExtractResource(const HINSTANCE hInstance, WORD resourceID, LPCTSTR szOutputFilename) { /*LPTSTR sArgv = argv[1]; LPTSTR sArgv2 = argv[2];*/ TCHAR sResName[5] = _T("#101"); TCHAR sRestype[4] = _T("DLL"); HRSRC hres = FindResource(AfxGetResourceHandle(), sResName,sRestype); if (hres == 0) { … |
| | Hi.. I am working with vb.net .. I am new in vc++. I need to write some code in vc++ in some case. I need vc++ for following reason. I created one dll in vb.net and make a tlb file based on vb.net dll. I import physical tlb file in … |
| | So with my program I'm trying to count the number of operations it takes to perform a insertion sort/quick sort. And because functions are calling other functions from inherited classes, it gets a bit confusing as to where I can place the operation to increment the number of operations. Right … |
| | I have been trying for about 6 hours to get this program to work. It's a C++ program for for loops. I am trying to go through a book, but I don't have source code for how this should be. I need to make a program that looks like this … |
| | I have this code written. One of the problems that I am having is in "Test 6". It should be totaling to $1.11 but it is totaling to $1.8 because it is switching the 6 and 3 and I cant figure out why. Another problem is that for some of … |
| | So i need to find a way to prompt the user for an answer (cin) while a timer is running. Like if the user doesn't answer in time then... or after a certain period of time passes an event occurs. Please Tell me if i'm being too vague. Thanks |
| | [CODE]// test.cpp - Script 6.7 #include <iostream> // Function prototype. // Function takes two arguements. // Function returns no values. void changeVar(int *myVar, int newValue); int main() { // Create a new variable. int myNum = 20; // Print its current value. std::cout << "myNum is " << myNum << … |
| | I am creating a Win32 Dll Wrapper around my C# class library. I am able to pass string from my C# to C++ application. But i am not sure as to how can i pass string array in Win32 C++ project. [CODE] //C# code void Test(string lFile, int ver); //C++ … |
| | How can i get th execution time ?? I tried to use library <time.h> [CODE] clock_t tStart = clock(); //put here my code double executionTime=(clock() - tStart)/CLOCKS_PER_SEC; [/CODE] here the excution time always zero. so what's the error here?? |
| | [CODE]int main() { FILE *fp; unsigned long size; unsigned char *loc; fp=fopen("Hello.exe","rb"); if(fp==NULL) { printf("\nCouldn't load file"); getchar(); return 0; } fseek(fp,0,SEEK_END); size = ftell(fp); fseek(fp,0,SEEK_SET); loc=(unsigned char*)malloc(sizeof(size)); printf("\nSize of file is : %d",size); if(loc==NULL){ printf("\nError in allocating memory."); } printf("\nFread called"); fread(loc,size,1,fp); printf("\nFread fails:"); return 0; } [/CODE] I … |
| | I have a text file for example abc, cde,fgh, jkl, rty qwe,erty, tyujk,werty , lkjh I want to read these tokens from the text file, into different variables row wise (ie one row at at time) Number of tokens in a row is fixed. (ie 5 in this case) Please …  |
| | Hello, I haven't done any work with reading or writing from/to files in C++, I think we did some C in school but its all a little fuzzy at this point. What I need to do is store the values for a couple different functions in a text file, have … |
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