[c] Forum Topics

Say I have [code] #include<iostream.h> int tempNum; struct node { int data; struct node *next; }; struct node *newNode = NULL; int main(void) { tempNum = 5; newNode->data = tempNum; //gives seg fault } [/code] *edit - I'm trying to add tempNum to the very first node. I haven't worked …

ok i need to do a program that inputs a amount of characters. my program has to capitalize the first letter and and letter after a full stop. any ideas and hints how to do it?

What enables C to support variable number of function arguments (varargs), while other languages (like Java) do not support this feature? What is special in C which is not there in Java to support this?

[CODE] #include<stdio.h> main() { static int n=0, number=1; int fibi (int n, int number); printf ("Following are the first 40 Numbers of the Fibonacci Series:\n"); printf ("1 "); fib (n,number); } fib (int n, int number) { static int i=1; int fibo; if (i==40) { printf ("\ndone"); } else { …

Hello all. Sorry to be a bother but I cannot figure out what is wrong with my homework program that's due before midnight. The assignment is to create a program with a two-dimensional array that generates a random walking path. I'll list the assignment as it is probably clearer. [I]Write …

Hi all, I am wondering if anybody has any good links for displaying floats. I have been working with some pre-written code that has bugs in, at the company i work for. But i keep having problems with rounding. I am considering re-writing it but what to get to grips …

Need help I wont to get a system date as integers such as(22/02/2008) rather than string cause I need this to compare two dates any ideas?

I am a beginner and need help with my program in C. My assignment is to find all the prime number up to the number the user input using a sieve algorithm. for example if user input 6 , the prime numbers will be 2, 3, 5. Then it should …

ok this is my code so far i have to use " isprime" to calculate prime number how do i do thatand where do i put it.thank you [CODE] #include<stdio.h> main() { static int n=0, number=1; // static: so value is not lost int fibi (int n, int number); printf …

Keep getting an error 'syntax before struct_acc' but cant see where can YOU?! (it's like finding woldo to me) [CODE] void print_customer_statement(char customer[]) { int choice; struct_acc Acc[SIZE]; FILE *file_ptr; int i=0; file_ptr = fopen(customer, "rb"); if (file_ptr == NULL) { printf("Error in Opening files... Program End\n"); exit(1); } while(!feof(file_ptr)) …

can anyone help me? Write functions to: int isprime(int); /* Returns a true value if a is a prime number */ int nextFib(); /* Returns the next fibonacci value (use static variables to track which one was used last call) */ The fibonacci sequence is defined as: Fib(0)=1 Fib(1)=1 Fib(2)=Fib(1)+Fib(0) …

I am trying to read data from a sequential file into an array. Here we are again at the old mortgage program. I have been doing some searching and can't seem to find the correct syntax to read the data into an array that can later be used. So the …

I Am Working On A Project Related To Data Compression Using Huffmann Algorithm In C Language..........i Have Generated The Huffmann Codes Using Huffmann Tree.........but The Project Is Yet To Be Completed As I Don`t Know How To Store The Codes In Bits.............i Have Just Learned C. We Have To Submit …

Suppose I have a function like that [CODE]char OnRelease() { int i,j,k; int row[4]={PIN_A0,PIN_A1,PIN_A2,PIN_A3}; int col[4]={PIN_D3,PIN_D2,PIN_D1,PIN_D0}; char array[16]={'1','4','7','<','2','5','8','0','3','6','9','>','C','&','E','M'}; set_tris_a(0xff); set_tris_d(0x00); k=0; for(i=0;i<4;i++) { output_d(0xff); output_low(col[i]); for(j=0;j<4;j++) { if(input(row[j])==0) { do { } while(input(row[j])==0); return array[k]; [B][COLOR="Red"]//// will jump out of this function with the value I got ??? [/COLOR][/B] } …

Back to where I was, now I'm learning how to use fgetc properly. Does fgetc read in a character? If so I can't find my error in my code and I'm getting a a segfault. Can you help fix it and explain why it doesn't work? Thanks [code]#include<stdio.h> //declare variables …

I have a program which uses the SDL library. Here is my function which updates the input state: [code] int SDL_UpdateControls () { int qevent = 0; while(SDL_PollEvent(&event)) { qevent = 1; switch(event.type) { case SDL_KEYDOWN: SDL_keydown = event.key.keysym.sym; break; case SDL_KEYUP: SDL_keyup = event.key.keysym.sym; break; case SDL_MOUSEBUTTONDOWN: SDL_mousedown = …

OK, i found this site because I did a yahoo search to calculate the parking charges and print the total, Well someone else had it already posted but once I registered I lost it. I am not even supposed to be in this class but I have to take it …

I want to make simple C Program which show current directories and files like dir or ls .This should be use interrupt for getting current directory and its subdirectories and files.Help me to make this program. I Saw 21h interrupt with its service 47h and 4Eh . Thanks

my teacher gave me an assignment to complete the blackjack program but I have little understanding of it. I have the majority of it but i'm missing pieces. [B]NOTE: All of the sections where it says TO DO are the missing pieces.[/B] PLEASE HELP. [code=c] #include <stdio.h> #include <stdlib.h> #include …

my question is how can i make my program not to display any unique combination more that ones? //*****f04.cpp***** //Name: //Date: 02 - 17 - 08 #include <iostream> using namespace std; int main () { // #1 int a, b, c; for (c = 1; c *c <= 100; c++) …

I need help on how to properly combine two programs into a single program. This is the first program: [code] int main() { FILE *input, *output; char doc; input = fopen("input3.txt","r"); output = fopen("output.txt","w"); while(!feof(input)) { doc=fgetc(input); if(doc==EOF) break; else { if(doc==';') { while(!feof(input)) { doc=fgetc(input); if(doc=='\n') goto out; } …

hi,I have a problem here. [CODE=cpp]#include "stdafx.h" int main() { int speed, dist, time, force, mass, masss, accel, velo, moment; int choice, choose; char pilih, pick; do{ printf("\t\t\tWelcome to Physics (Force and Motion)\n"); printf("\t\t***************************************************\n"); printf("\t\t\tCHOOSE SECTION\n\n"); printf("\t1. FORCE\n"); printf("\t2. SPEED\n"); printf("\t3. MOMENTUM\n"); printf("\t4. END\n\n"); printf("Choice: "); scanf("%d", &choice); switch(choice){ case …

Hi I want to know is it possible to connect C with VBA . And can you please give me the link of some explain or you can by your self . So my question is how to connect C and VB 6 . Thank you for your effort of …

Could someone help me please? I can’t get it to work, and it wouldn’t show me salary in two significant digits for example Enter # of hours worked (-1 to end): [B][COLOR="Red"]41[/COLOR][/B] Enter hourly rate of the worker ($00.00): [COLOR="red"][B]10.00[/B][/COLOR] Salary is [COLOR="red"][B]$415.00[/B][/COLOR] Enter # of hours worked (-1 to …

I have a text file which has the following format..... 129.2.3.87 18.3.6.77 5655 2333 here the first field is source ip address then destination ip address then source port and destination port there are many such entries..... i want to know how do i extract these fields using c program …

I am looking for a front end/graphical user interface(GUI) in linux which supports C language as backend.

Develop a program that will determine the gross pay for each of several employees. The company pays “straight time” for the first 40 hours worked by each employee and pays “time-and-a-half” for all hours worked in excess of 40 hours. You are given a list of the employees of the …

I'm getting a segmentation fault when I try to run my program. It's probably because I'm not referencing my pointer to a string right, or dereferencing whatever it's called. This is basically what my code looks like. [code] #include <stdio.h> FILE *myFP; char filename[20]; char *pstr = finlename; void func(char …

I am writing a calculator program in C. I need a function definition for a function called Subtract() that will allow me to calculate the difference of several numbers entered by the user also need one for division

hi people, I havent received any replies for the question i had putforth regarding the mini project adaptive detection of design flaws,and im glad to inform you all that i have proceeded with the project effectively and i have choosen "C4.5" algorithm (decision tree).i am also incorporating the machine learning …

what is meant by generic linked list. how to insert and delete the elements in the linked list which is generic

//I tried to fix the errors but I failed. //pls do it for me....... [code=c] #include<stdio.h> #include<conio.h> void main() { int a; void scanchar(char**); int scans(char**,char*,int,int); int scani(char**,int,int,int,int,int,int); int myscanf(char *); int smyscanf(char*,char*); clrscr(); printf("enter"); myscanf("%d",&a); printf("%d",a); getch(); } static void scanchar(char **str) { extern int getchar(); if (str) { …

I am using an open source library called IGI_UDP for measure the available bandwidth of a link ([EMAIL="http://www.cs.cmu.edu/%7Ehnn/igi/"]http://www.cs.cmu.edu/%7Ehnn/igi/[/EMAIL]). with that library they have provided a "Makefile" which is not an auto generated one. the following is the given Makefile, ***************************************************************** CC = gcc INCS = -I. CFLAGS = -g -Wall …

I've never coded in c before but have to for a class that I'm taking. I'm using miracle c as my compiler but am having a strange error when I try to execute a program. The program executes, but the command window instantly closes so I can't even tell if …

For a school project I am doing we are required to take character input through the command line and convert the character to its ascii value. I would think, therefore, that the line of code: printf("%d",(int)argv[1]); would print out 97(ascii for a) if i were to type 'a' as the …

hello all, I have an old database that was written for xenix 386 using the old a.out binary format. Since then most unix/linux OS s have adopted the ELF format. These binaries will not run on a modern OS. I don't have the source code, just the binaries. Is there …

Hello, I need to write a program which displays some images on the screen depending on some calculations. For example if the result of the calculation is 3 it will display an image file, if it is 5 it will display another image file. I don't even know where to …

Hi... Does anyone know how can we get motherboard details using a c program for a Mac machine ? I want details like Motherboard Manufacturer, Its Model No., Its version and Serial Number. How can this information be obtained ??

Could you please help me? what is wrong with this code? it prints only D->D->D->D (I want A->B->C->D) [code=c++] #include <stdio.h> #include <stdlib.h> #include <string.h> #include <malloc.h> struct node /* Declaration of structure "node" */ { char letter[1]; struct node *next ; }; struct node *start = NULL; main(void) { …

The question goes like this: You are given a file in which each line contains a list of space separated words. Write a program to find out: 1. List of words that are present in all the lines (words common to all lines) 2. List of unique words that are …

write a bit of code to read from a file and compare a string but it dies before it finishes. the complier tells me there is a segment fault on line 31 can anyone help. [CODE] [LIST=1] [*]#include <stdio.h> [*]#include <string.h> [*]#include <stdlib.h> [*]#define max 100 [*]struct customer{ [*] [*] …

I want to store a byte from fread as type char, and then be able to perform comparison operations on that byte as an int. I have [quote] int num; char buffer; num = fread(buffer, 1, 1, myFP); [/quote] and I'm sure it's not right.

is there a quicker way to fill the list with A,B,C,...,Y,Z whithout doing all this? 1. #include <stdio.h> 2. #include <stdlib.h> 3. #include <string.h> 4. #include <malloc.h> 5. 6. struct node /* Declaration of structure "node" */ 7. { 8. char letter[1]; 9. struct node *next ; 10. }; 11. …

I'm trying to make a program that converts octal numbers to decimal numbers. I know the concept is taking the %10 of the number to get the first digit, /10 the number then take the %10 to get the second digit and multiplying by increase powers of 8, but I …

Hello there. Is there someone kind enough to please explain to me the difference of using fork() and exec() with system() in invoking a process. I just want to know their difference according to well experienced with processes here. And what is the most efficient in invoking a process between …

How to create and load shared libraries in fedora 7 for Java as frontend and C as backend We are doing project for which we want Java as frontend and backend is C. We are using JNI to link Java and C but we are not getting which commands are …

i need a sample program for handling text files using c language.. i don't know the syntaxes.. please help me and provide some comments on the source code so that i'll be on track.. Things that i need: 1) How to locate the text file 2) How to input values …

my program stops right before the while loop [CODE] #include <stdio.h> int main() { int pay_type_1; int overtime; int num; float commissionsale; float payperitem; float salary; float hourrate; const float commissionrate=0.057; const float commissionpay=250; const float overtimerate=1.5; printf("paytype1=Managers salary\n"); printf("paytype2=hourly worker\n"); printf("paytype3=commision worker\n"); printf("paytype4=piece worker\n"); while (pay_type_1 > 0) { …

I'm better at C++ than C right now and I forgot how to use arrays in functions from main. I want to do something like [quote]void fileReader(infile[] ); [/quote]. Is infile supposed to be a pointer and if so how is it written?

hi everybody there......i want to access the addresses other than provided to me c compiler......can anybody help