19,876 Topics
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| | How can I create a code for this task? *You are given a natural number m and natural number n =2, .,.,.. 16. Print the number m in counting system with base n. |
 | there have problems with the output and the calculation... [CODE]void Mark_Attendance() { int answer, temp_Att; FILE *ExistingFile, *AppendingFile, *ReadFile; ExistingFile = fopen("Attendance.txt", "w+"); AppendingFile = fopen("Attendance.txt", "a"); ReadFile = fopen("StudentDetails.txt", "r"); if(!ExistingFile || !AppendingFile || !ReadFile) { system("cls"); printf("This File Cannot Be Open Successfully!!\n"); printf("Please Check It!!\n"); exit(-1); } else … |
| | Hi All, i want to know what is the use of const volatile variable, where exactly it is required to use.  |
| | Hello, We are trying to control 8 7-segment displays by using multiplexing. The problem we have is that we have to program buttons, how can we make it? Best regards, Floris /* Ansteuerung von drei 7-Segmentanzeige im Multiplexbetrieb * Gemeinsame Anode, PB0..PB6 * Spalten: PC0..PC2 * * a * f … |
| | Okay heres the background on the code. I've written a code that prints a 10x10 array or random numbers. Then prompts the user to pick a number. After user picks a number, the program then tells user the number of times number was found in the array and supossed to … |
| | Hi, can some kind soul advise me on my coding cos it does not seem to work. [CODE] private void DisplayText(object sender, EventArgs e) { textBox1[COLOR="red"].Display[/COLOR](); if ([COLOR="red"]10<x && x<294[/COLOR]) [COLOR="red"]&&[/COLOR] [COLOR="red"](-5<y && y<13[/COLOR]) && (-12<z && z< 228)) textBox1.display("It has moved inwards"); else if (-53<x<-265 && -11<y<37 && -57<z<218) … |
| | i need a help in airline reservation system project in c n i dont no how to do that so plz tell me the codes for these we should allow the user to chose 1)to book 2)to cancel 3)view data 4)quit as well as they have to enter them name … |
 | Hey all, I'm trying to implement a function InitMatrix which suppose to return a pointer to a new created 3d array of the size determined by x,y and z. I have a struct which represents a matrix and should be able to deal with some functions required, like setting the …  |
| | Hi i ve been dealing with a program and encountred a weird problem. the problem is that my array variable por[27][1]'s value changes for no reason. please take a look at the pictures in the attachment. the pictures belong to debugging. |
| | Hello, I have an assignment where we are supposed to populate an operating system's ready queue with processes and try various process scheduling scheme and record their wait times. To do this i made a rudimentary structure for a process: [CODE]typedef struct{ int ID; int wait_time; int exec_time; }process; [/CODE] … |
| | I am learning C++. This class project was to write a program that will let you enter a diver's first and last name and city. Also 5 judges results along with the difficulty for the course. Then display the results. It is suppose to ask if you want to enter … |
| | Salam, My mission is to program a cube[I](given its dimensions (x,y,z))[/I]. The cube will be represented in a struct, which I'll choose what data members it should contain. I need to implement the allocation function(which actually creates the matrix) and some other functions. The most important function is the setter …  |
| | [CODE]namespace week4Matrix { class Program { int[,] a; int[,] b; int[,] c; static void Main(string[] args) { } public void TransposeMatrix() { for (int i = 0; i < a.GetLength(0); i++) { for (int j = 0; j < a.GetLength(1); j++) { c[j, i] = a[i, j]; } } } … |
| | Hello all: I am working on a class for creating 2-D arrays. A couple of days ago, someone kindly helped me identify a problem with my operator() expression, but now I'm getting a segmentation fault. I just can't figure out where the problem is! If anyone could take a look … |
| | [COLOR="Green"]Hi, I'm trying to write a linked list Program to accept a no. and print all the prime numbers less than it, using the sieve method, Explained below: Suppose that n=30.Then we list all the numbers till 30, and cross out 1 and all the multiples of 2, then 3,then … |
| | Hi DaniWeb, [INDENT]So when you right click an .exe file (one you compile with C) you get the option to view the details such as File Description, File Version, Product Name, etc. I was wondering how to change these? I assume it'll be a C command, but I'm not entirely … |
| | I erased this post because I made a mistake in it. Sorry |
| | Hello guys, Can someone explain what is going on on this code? 1. why we needed **p in the function [B]AllocString[/B]? 2. why if I change [B]AllocString(strlen(s), ©);[/B] to [B]AllocString(strlen(s)-7, ©);[/B] I can still get a good result? Thanks! [code=c] #include <stdlib.h> int main() { char *s="example"; char *copy=NULL; AllocString(strlen(s), … |
| | While reading Stroustrup's "The C++ programming language", I was puzzled at 'declaring a pointer to an array of character strings and declaring a reference to an array of 10 integers', and I had to clear my mind on pointers to arrays. I am posting here the notes I made to … |
| | Hi, I am trying to figure out how to get my program to do one of two things: Either... 1. Create and remove a semaphore based on me entering a 'r' in the command line at argv[1] or 2. If argv[1] is a 'n', then I want check to see … |
| | [[url]http://lxr.free-electrons.com/source/drivers/net/8139too.c#L498][/url][1] On above link What I am not getting is the structure [CODE] static const struct { const char *name; u32 version; /* from RTL8139C/RTL8139D docs */ u32 flags; } rtl_chip_info[] = { { "RTL-8139", HW_REVID(1, 0, 0, 0, 0, 0, 0), HasHltClk, },[/CODE] gets expanded to [CODE] static const … |
| | Hello. I am relatively new to C++ programming, and I have a question about a program that I am supposed to write. The assignment reads... Prompt the user for a word; call it SEARCH. Then begin reading words from the user, counting them until SEARCH is entered. Display how many … |
| | Hello; I would like to compress an 1D array of arbitrary number of elements. For instance if a user inputs IN : 111122233331 OUT: 14233411 [it shrinks/increases the array and replaces all the identical consecutive elements with a number of how many times theyve appeared.] This task must be accomplished … |
| | Hi all, Quite a basic question for most of you; I am trying to obtain length of a string < char [b]name[MAX_ENTRIES][MAX_NAME_SIZE][/b] > for use in a for loop that will perform isalpha. [size=3][color=blue]for (int j=0; j < &name[i].length(); j++)[/color][/size] [color=black]I am getting [/color][color=red]error 2228: left of '.length' must have …  |
| | Hi I am new to C. I'm taking an operating systems class right now and I have a project that requires me to create a set of semaphores. The command line takes in: filename ropt NS value1 value2 value3...valueNS Where argv0 is the filename Argv1 is the option to remove … |
 | Hi, I'm writing a large program but require Multithreading for this software. I've searched the web for just over an hour and now is just after midnight but still can't find anything simple. The only thing I saw that came close to what I need was at [URL="http://www.computersciencelab.com/MultithreadingTut1.htm"]http://www.computersciencelab.com/MultithreadingTut1.htm[/URL] but I … |
| | I am writing a calendar in C. I'm still very new to the language. I think i wrote most of the functions/algorithms correctly (it would be nice if you guys could check for any errors too). Now I'm having a tough time printing the calendar out In a correct format. … |
| | Hi folks, I'm quite new to C++ and I'm getting an exception I don't understand. I have a class named 'Rational' that performs calculations on fractions. It has a default constructor as follows... [CODE] //In Rational.h public: Rational(int num = 1, int denom = 2); //Default constructor void addition(Rational); void …  |
| | Write a function that accepts an array of integers and determines the product of each two integers. Although you can create a fixed size array in main, your function should work no matter what size of array is passed to the function. MY code: [CODE]#include <iostream> using namespace std; void … |
| | I am not sure if this is more software problem or C problem. Nevertheless, I am trying to run simple test code to check if my lapack installation is OK. [CODE]#include <stdio.h> #include <atlas_enum.h> #include "clapack.h" double m[] = { 3, 1, 3, 1, 5, 9, 2, 6, 5 }; … |
| | Hello, i needed suggestions regarding the book "Art of Computer Programming" by Donald E Knuth. im an undergraduate Computer Science student. i would like to know more about the book before i buy it. So, any reviews? Reviews as to how the Math in it is(i heard there are a … |
| | Hi all. I would like to write a network server in C to run on debian linux. I have some network code thats working, BUT at the same time I want to read data from a serial port, and process it. I want to build a linux based server to … |
| | I've got to write a program where it replaces a letter with a dash and then asks the user to enter the letter that should be their. I've written a program and It works the first time around and then prints out two lines. Where have I gone wrong ?? … |
| | Hello Friends I want to pass a Double Dimension Array to a Function using Pointers... Right Now i am doing this.. [CODE] # include <stdio.h> void show(int *,int,int); int main() { int a[3][3]={1,2,3, 4,5,6, 7,8,9}; show(a[0],3,3); return(0); } void show(int *p,int row,int col) { int i,j; printf("\n\n\n"); for(i=0;i<row;i++) { for(j=0;j<col;j++) … |
| | Hi, As part of porting a (mostly C++) library[1] to a "new" operating system[2], I'm trying to link the library's semaphore class to the platform's semaphore implementation. The problem is that the library assumes that the semaphore implementation will be a modern POSIX one[3] but the operating system's semaphores are … |
| | Please give Free download links of Latest and Best C/C++ Compilers for Windows... |
| | Hello, Can anyone suggest a GUI library that meets the following criteria? * Cross-Platform * Doesn't control the main loop * Not 100% object-oriented; similar to Xlib :) * Not many pointers please (like FLTK that every object is a pointer) * Free to use for closed source and open …  |
| | question about pointer and array. can we add a 2-D array (**A) with a 1-D array (*B)? both of the array is define as a pointer in the program. where array A is A[i][j] and B is B[i] new in C programming and pointer is difficult.... :-| |
| | Please can you tell me where I've gone wrong !!! thanks Sam [CODE]#include<stdio.h> #include<stdlib.h> #include<ctype.h> #include<string.h> int main() { char array[80]; // input array int i=0; // loop counter 1 int vo=0; // vowels int co=0; // consonents int ot=0; // other characters printf("please enter string\n"); fflush(stdin); gets(array); while(i!=80) { … |
| | Hi advance thanks... kindly let me know the detail command and communication with smart card... tell me the reference and suggestion....i have 94POS Machine.. i need to write and read the data from 94POS Machine with smart card... |
| | Hello, I am trying to read two floats from a file written in its first line using the below code but after compiling I always get "wrong dimnesions" coulp please help me in that problem. Thanks in advance. [CODE]#include <stdio.h> #include <stdlib.h> #include <math.h> #include <ctype.h> int main() { float … |
| | Please give me code demo by C or C++ : Speak file text ! HRESULT hr = S_OK; CComPtr <ISpVoice> cpVoice; CComPtr <ISpObjectToken> cpToken; CComPtr <IEnumSpObjectTokens> cpEnum; //Create a SAPI voice hr = cpVoice.CoCreateInstance( CLSID_SpVoice ); //Enumerate voice tokens with attribute "Name=Microsoft Sam” if(SUCCEEDED(hr)) { hr = SpEnumTokens(SPCAT_VOICES, L"Name=Microsoft Sam", … |
| | could you please help me? i need to write a program, no dynamic allocation, using classes and arrays to multiply only 3x3 matrices only  |
| | Hello, Im looking at this weird little code fragment I stumbled upon the other day and I cant figure out how it works. OK, I get the picture how the array is filled up to the fourth index, but that descending part is evil. And weird. :) [CODE] #include<stdio.h> int … |
| | Hi Every one in this great community ...i need help with Nokia BlockD game algorithm i really do not know how to start ,,,please could anyone here can get my feet on the stage ,just help me with some ideas to be able to get started: The rules of the … |
| | Hello all, I turn once again to the wisdom of the internet: I have attached my two files to this post as to not use up a whole lot of space. The program is a mock "assembler" it takes mock assembly code and turns it into a file with hex … |
| | Alright, so I've spent countless hours on this code and I need a fresh pair of eyes to give it a glance... This is my third assignment for my datastructures class, where I am to write code that turns a fully parenthesized expression (such as "((3+2)/(3-8))") into aan "arithemtic expression … |
| | [CODE]#include <stdio.h> #include <windows.h> void main() { int i; for(i=0; i<21; i++) { if(i == 5) { system("cls"); printf("\n\n\n\n"); printf("\t\t ***************************************\n"); printf("\t\t ***************************************\n"); printf("\t\t *** ***\n"); printf("\t\t *** WELCOME TO ***\n"); printf("\t\t *** CLASS ATTENDANCE SYSTEM ***\n"); printf("\t\t *** ***\n"); printf("\t\t ***************************************\n"); printf("\t\t ***************************************\n"); printf("\n\n"); } if(i == 10) { … |
| | I want to read a bmp file in c. i can read the header but now i need to see het photo. the attachments is am exemple. [CODE]#include <stdio.h> /* We moeten een apparte struct aanmaken voor de Magic Number, anders krijgen we een foutieve waarde hiervoor.*/ struct MagicNumber{ unsigned … |
| | O.K., I have a project I'm working on. It uses 8 classes (I'm only showing 2 and main). It gives me a "bad_alloc" error when the obj is instantiated. When obj is removed it works fine (or call the personType class that "should" be inherited from extPersonType.) Any thoughts of …  |
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