Sponsored Content
Full Discussion: Help with linked list in C
Top Forums Programming Help with linked list in C Post 302509795 by Corona688 on Thursday 31st of March 2011 05:58:58 PM
Old 03-31-2011
Stop flailing around and read what I'm writing for you. You don't understand how pointers work yet, until you do, writing code that works is going to be a matter of chance.

Trying what I suggested for you pages ago would also be nice.

I'll put it all together for you even.

Code:
    typedef struct client_list {         
        char *client_name;         
        struct client_list * next;         
        int client_socket_fd;     
    } client;
    client *current=NULL;
    int client_socket_fd=3;
    current = add_client("test", current, client_socket_fd);
    printf(current->client_name);

Code:
client *add_client(char *username, client *head, int client_socket_fd) {
    client *current = (client *)malloc(sizeof(client)); 
    current->client_name = username;
    current->next = head;
    current->client_socket_fd = client_socket_fd;
    return current;
}

 

10 More Discussions You Might Find Interesting

1. Programming

Reverse single linked list

Can any one help me in reversing the single linked list and at the same time i want to print the reversed links. (2 Replies)
Discussion started by: dhanamurthy
2 Replies

2. UNIX for Dummies Questions & Answers

List linked files

A perl script that displays the list of files which have multiple links..! ls -l shows number of links in a field. (0 Replies)
Discussion started by: aadi_uni
0 Replies

3. Programming

shared memory with linked list??

is this possible, if so plz please share with me.. Correct English please, not Cyber-/Leetspeak (11 Replies)
Discussion started by: vijay_manpage
11 Replies

4. Programming

I need C++ Code for single linked list

I need C++ Code for single linked list With operations as 1)insert at any position 2)delete any 3)change the data of any position (2 Replies)
Discussion started by: girija
2 Replies

5. Programming

How to check if something exists in linked list in C?

i have a linked list set up like typedef struct client_list { char *client_name; int client_socket_fd; struct client_list *next; } client; client *client_list=NULL; before adding to the list i check if it already exists, only if it does not then i add if (client_list==NULL... (1 Reply)
Discussion started by: omega666
1 Replies

6. Programming

how to check if something exists in a struct linked list?

can someone provide an example of a struct linked list, where it has strings as its values, and then how do I check if a specific string (say called buffer) exists in the list of structs? i dont understand how to make a copy of it to check with this is what i have ... (0 Replies)
Discussion started by: omega666
0 Replies

7. UNIX for Advanced & Expert Users

Unix linked-list placement

Hi, I am programming in kernel, and I want to use a double linked list that holds infos that every process could access and modify THIS list. So, I suppose it is a 'global' variable since every process(thread) can reach it, I am wondering where to put it? by changing some of the kernel files? (1 Reply)
Discussion started by: louisTan
1 Replies

8. Programming

Help with linked list.

#include<stdio.h> #include<stdlib.h> struct LinkedList { int val; struct LinkedList *next; }node; /*Creating a structure variable*/ typedef struct LinkedList Node; Node *start = NULL; int create(int i) { Node *temp = NULL; if (start == NULL) ... (5 Replies)
Discussion started by: prinsh
5 Replies

9. Programming

How to delete the last node in a linked list.?

How to delete the last node in a single linked list given only the pointer to last node ? Head node will not be given. (5 Replies)
Discussion started by: VSSajjan
5 Replies

10. Programming

How to reverse a linked list by traversing only once.?

Program to reverse a linked list by traversing only once. (1 Reply)
Discussion started by: VSSajjan
1 Replies
ppmtosixel(1)						      General Commands Manual						     ppmtosixel(1)

NAME
ppmtosixel - convert a portable pixmap into DEC sixel format SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile] DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC LJ250 color inkjet printer. If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file. OPTIONS
-raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com- pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni- tude larger than a compressed file and prints much slower. -margin If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci- fied, a 1.5 inch left margin will offset the image. PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?. BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation. SEE ALSO
ppm(5) AUTHOR
Copyright (C) 1991 by Rick Vinci. 26 April 1991 ppmtosixel(1)
All times are GMT -4. The time now is 04:32 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy