19,876 Topics
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| | hi guys, i am stuck... we have to show wats in a file.... then at the end show the grand total of the Profits .. heres the report func.... [code]void report() { struct Prods ssg; double prof; FILE *f; f = fopen("data.dat","rb"); printf("\n\n\n==============================================================================\n"); printf("Prod# Type Description Qty Cost Price Profit\n"); … |
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| | I am making a network application and am having some problems. I have a function that asks for username/pass and is suppose to activate a set of buttons on successful logon, however it's not working. (Logging on requires the user to press the logon button named IDC_BLOGON and then another … |
| | omg i need help so bad. I've been working on a school project for what seems like an eternity and i'm close to deadline. Using FIFO's (i ahve to) to communicate between parent and child proc's. Right now I'm stuck on a read/write. fifomsg is a struct with int length …  |
| | Why is it that a major class should be defined in a header file, then given a source file to define it's functions? |
| | Hey everyone. I am not sure of any of you are familiar with the term MUD (which is Multi User Dungeon, a text-based game). If not feel free to go over to [url]www.mudconnect.com[/url] to check it out. Anyway, back to my post. What I am currently planning on doing is … |
| | hi i try to creat a _calculator and save the commands in _linked list the code compile but it crashes :sad: i attached my project i think you find the error in linkedlist.cpp in push_back(CalcCommand* data) |
| | I know you use strcmp() with strings and that if it is equal to zero, they match. But, how do you see if one string is less than the other? I want to compare SSN's to see if 12345620 is less than or greater than 123456708. Thanks for any input. |
| | ok, so I'm supposed to write a program which allows the user to input 5 candidate names and the number of votes they receive. The program should the spit out the names, number of votes, percentage of votes received, the total votes, and the winner of the election. This is … |
| | hi guys, i need some help. i need one c program about a file called segy. hve to extract some information from its header(trace header) & stored it in another file to view.The information i have to extract from the trace header are inline,crossline,x coordinate & y coordinate. i wanna … |
| | here is the sequence i'm using for my arrow keys [code]#include<stdio.h> unsigned char keyin main() { if(square==1) {//start square putimage(285,440,ste,COPY_PUT); while((keyin=getch())!='\r') {//up arrow key if(keyin==72) {//hit up arrow keyin=getch(); square=2; }//hit up arrow }//up arrow key }//start square do {//game from start square on if(square==2) {//on square 2 putimage(285,400,ste,COPY_PUT); }//on … |
| | hi.......We have a task to write a program in C in linux environment that takes 2 command line arguments: 1.the name of a text file that contains single-digit integer data in one line 2.an integer to be searched from the sorted version of data in file. The prgram creates a …  |
| | Dear friends I am asking anybody to please provide me with a round robin scheduler in C programming. I have a non preemption program, but i need a preempted one. Please help. |
| | I'm trying to overload my 'Log' class so that I can pass 'endl' to it. Given the obscure nature of the compiler errors for template classes, I'm not sure what to put on the 'right hand side'. For example, these work fine. .. [code]Log & operator << (ostringstream & a) … |
| | hello all anybody could please tell me how to change this code to make it read from a file that has unknown no of students in it. now this [I]part[/I] of the programe read only 5 students. could you please help me to solve this problem as soon as you … |
| | I am working through the book Visual C#.NET Step by Step, and I came to the section of the book where the author shows how to create comments on your code with XML. ///<summary> ///The obligatory Hello World in C# ///</summary> ///<remarks> ///This program writes out Hello World ///using the … |
| | Hey.. Can anyone please help me? I am trying to write a round robin scheduler and so i decided that if i got a fcfs scheduler, then all i would have to do is change the process from completing in the processor to it just going into the processor for … |
| | please help.I need a programm in C that does what the command copy of dos does with verification.please anyone who can do it help |
| | we need to write simulation program to imitate the behavior of a single CPU system that has a preemtive RR scheduler and the collecting data regarding the operation of the simulation, create a input file to represent process arrival and service times 30 0.7 54 17.28 . . this EXP … |
 | I'm trying to create class/header for my program which should calculate distanaces between cities declared by array "[I]use[/I]" plus arrays of there coordinates as you see in code below [CODE]// file line.h #ifndef LINE_H #define LINE_H const int cities = 6; class Line { private: string use[] = {"Phoenix", "Baton … |
| | Since nobody answered the thread on Binary File IO, I took a different approach. Now I'm having another problem. As I process a very large (>2GB) binary file, I store the byte position at certain points. Then, I reposition the file as needed. I store the byte positions in a … |
| | Reference reading directly related to this post: http://www.math.princeton.edu/matalive/Error/index.html http://www.math.princeton.edu/matalive/Error/index.html http://www.math.princeton.edu/matalive/Error/ErrorLab2/LZCompressor.html http://www.math.princeton.edu/matalive/Error/ErrorLab2/LZCompressor.html Hi all. I've just started learning the ways of compression. I decided to start with the LZ algorithm. The resource I use is: http://www.math.princeton.edu/matalive/Error/index.html http://www.math.princeton.edu/matalive/Error/index.html I understand the fundamentals of parsing the incoming text. Let's call the container that … |
| | what is the header to time code isnt it; #include "pctimer.h" i keep gettin an error saying no such thing |
| | Hi, all. Thie following is an additional step in the program I previously mentioned [and, by the way, thanks for the responses; most helpful!] The final part of this project is to create [I believe it is called a histogram] of the grade frequency distribution. The program asks for grades … |
 | Suggestion: I like the language tags [url=http://www.gidforums.com/t-689.html]here[/url]. I've also seen them on cpp-home. Is something like this already on any wish list for Daniweb? |
| | Hello ladies and gents, I wanted to ask if this piece of code can be written differently then the way I did: [code] template <class V> void sequence3(V &a, V &b, V &c) { V w; while (a > b || b > c) { if (a > b){w = … |
| | Hello, I was hoping that someone could help me with this question. We received an extra credit queston which completely bombed on. That wasnt the problem, the problem was that I still cannot explain the questions below and since this was extra credit the professor would not give us the … |
| | How can I use "cin" to allow entry of an enum type in C++? My code is as follows: enum Cards {TWO, THREE, FOUR, FIVE, SIX, SEVEN, EIGHT, NINE, TEN, JACK, QUEEN, KING, ACE}; Cards hand1 = ACE, hand2 = ACE; cout<<"Player#1 - Pick a card (2 - A): "; … |
| | Hi, I have two problems, been bugging me for a couple of days... I have a 32bit float array that has been calculated, I now need to convert it to 16bit int values to be scaled for use. I tried the code: h[N] = int (h[N]*(scale[N]) and that sort of … |
| | write a program that inputs five integers and passes them one at a time to function [B]even [/B] which uses the modulus operator to determine if an integer is even. The function should take an integer argument and output/return the answer whether the integer is true or false (hint: combination … |
| | i'm trying to insert and element in a list in alphabetical order last name first and then first name here is my code but not working please help [code] struct node * Inserting(struct node *tp,struct node *fp) { struct node *last = NULL; struct node *old, *start; start = fp; … |
| | I am writing to console from several threads using printf(). The process is synchronized and it works fine. The problem is that sometimes some of threads freezes (never returns ) at WriteFile() function used to implement printf() and the really strange here is that it returns and everything continues when … |
| | Hi, in part of some code i am using there is a message defined by: char message1[133]="Please Select Features"; And then its referenced as: feature_select=message1; And called as a perameter using: UF_UI_select_feature ( feature_select, NULL, &count, &feature_tags, &response) I was just wandering what the [133] part is. Is it just … |
| | Hello, I want to know how to use xml and c#. Can someone give me and example of how to do this or link me to a good tutorial. Thanks in advance |
| | I have a problem that deals with reading a random access file and creating an index file, which is a file to hold the binary tree of the random access file. I have the index file created with SSN (key), relative address of the SSN in the random access file, … |
| | [COLOR=Blue][FONT=Arial Black][SIZE=5]:idea: [COLOR=Blue][FONT=Arial Black][SIZE=4][FONT=Arial][SIZE=2]hi everyone, i need some help. My question is , if i want to input a password which is 123456, how do i output the password on the screen using ****** instead of 123456. Do anyone know how to create the source code ???[/SIZE][/FONT][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR] |
| | This is an assignment where the server uses a socket to communicate with a web browser however it has to be multi threaded but I am not sure on how to add code for the threads, i have attempted it but got no where. thanks. [code]/******************************************************************** * Systems Programming (COMU311) … |
| | Hello, our tutor set us a task to do , which was make a vector out of a class. So I've implemented a basic one but it doesnt work well... its runs ect ... but when you re print the entered elements it doesnt print the correct ones: [php] #include … |
| | im doing this lab and im so lost on it, i dont know where to start. here is the link for the lab [URL=http://north.ecc.edu/kuroskit/cs111-01-sp05/labs/Lab10%20spg%2005.doc]Lab[/URL] now im not lookin for someone to do it for me just help me out on gettin started. im not sure how to use arrays and … |
| | I wrote a blackjack game for class and one stipulation is to have a file(fstream). I did get the file stream to work but not like it should. it keeps track of player name and money amount. what i would like to do is give player option to save game. …  |
| | [B][code] #include <stdio.h> #include <math.h> int main() { double op1,op2; char opp; char *res= "2 ^ 1"; sscanf(res,"%d %c %d",&op1,&opp,&op2); printf("%d\n",op1); printf("%c\n",opp); printf("%d\n",op2); printf("====\n"); printf("%d\n",pow(op1,op2)); /* the output is for sure 2 */ } [/code][/B] [COLOR=Blue][B]but it output : 1073741824 <-- ??? I don't know what here so please any … |
| | what will happen if we free the same memory two times in C. for exam........ char *k=(char *)malloc(4); free(k); free(k); |
| | a program that will display teh string "HELLOWORLD" in ascending style [code] #include<stdio.h> #include <conio.h> void main() char str[]="HELLOWORLD" int i. choice; while(1) { clrscr(); printf("(1) Ascending style\n"); printf("(2) Exit\n"); printf("enter your choice:"); scanf("%d", &choice); printf("\n\n"); switch(choice) { case 1: [B]for (i=0; str[i]!='\0';i++) //--> Please!!! this is where i need … |
| | Microsoft YCMD Software Giveaway! Hey, Microsoft is sponsoring their 2005 annual contest, “You Can Make a Difference |
| | Hi, I'm trying to write code such that my class can be used like so: To accomplish this, I'm trying to overload the + operator of my class to return a string. I am able to do this, but when I try and do the operation above, I get: Error: … |
| | my programme has the strcmp. but i dont understand what it is use for. while((strcmp(current->bed_num,beddelete))!=0) bed_num and beddelete i have declared as an integer variables. when i run the programme, it stated that invalid conversation from 'int' to 'const char*' what does it mean?? thank you |
| | please ,if one can help how to implement caht application using socket in c/unix or help me with example code of that with my thankssssssssssssss feda |
| | [COLOR=Blue][B]Is the following code correct:[/B][/COLOR] [CODE] char * cmd="ls -l"; /* Unix command used for listing */ char * spCmd; spCmd = strtok(cmd , " ");/* it divides the cmd in to tokens */ execvp(spCmd[0] , spCmd);[/CODE] [COLOR=Blue][B]output of this code to execute command that is written in cmd ?[/B][/COLOR] … |
| | hello everyone, I'm writing a function traverse for a doubly liked list, I can only use these private members: Node *current , int count, int mutable current_position and one one private member function void set_position(int position) const The post condition of member function traverse is the action specified by function … |
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