Hi Corona & Don, Thanks you both so much!
This is very helpful as I could not find these explanations in any of the C books. All the books I have read so far did not combine these two parts (Corona's explanation and Don's Linked_list). I will try to digest more.
By the way, Don's code was compiled without any warning, but the roll_num value of the structure was wrong from strange 9065056 instead of 10002 with increment of 64 there after, except the first node 10001, which is correct. I realized why you gave an introduction program string_vs_int at the beginning. I'll try to catch why only 10001 was correctly printed. Thank you very much!
Hello,
I am having a problem setting a range of numbers for the "case" structure.
I can use with no problems, but
when I use it doesn't work???
Does the case struture allow numeric ranges?
eg:
echo -e "enter number between 0 and 60: \c"
read $answer
case $answer in
) echo... (2 Replies)
Hi,
I want to read the task_struct structure in Linux in order to get the names & pids of all processes.
How can this be done??
Thanks in adv,
molu (4 Replies)
Hi folks,
Need your help.
I am writing a KSH script to read a few commands from a file & execute.
I am using the following code to read the file line by line & excute each command. When I am printing each line I see it is printing properly but while excuting, the particular "ps" command... (5 Replies)
Hi All,
These are the two ways i tried to read file but i getting work with second one not with the first.
char buf; // Defining space for buf
ctrlfnum = fopen(filename_arr.control_fname,"r");
1) n = fread(buf,sizeof(buf),1,ctrlfnum); ============== (not works)
2) n =... (4 Replies)
Hi
When im listing (ls -al ) its listing directories without / at the end of directories
dir1 dir2 dir3
and i need to list directories with
dir1/ dir2/ dir3/ and this should not be made by command ls -F
/ should be embedded at the last
since one of the scripts reads directories... (1 Reply)
Hi,
I have a following problem in C.
I have a function A in which I used to call another function (function B) and pass an array of values through array variable by using below:-
foo=functionB(array);
In functionB, i used to just return some "values" (e.g return num;) in order to pass... (1 Reply)
hi
One of our SCO 5.0.6 server is crashing every second or third time during rebooting with kernel panic.
According to this SCO manual:
http://wdb1.sco.com/kb/showta?taid=106181&qid=1689366546&sid=504668569&pgnum=1
I've saved dump image into a floppy and I've done the following steps:
#... (0 Replies)
How can I use malloc with copying/creating files?
Is this the correct way?
I'm a bit confused...
int in_fd;
int *out_fd;
char buffer;
in_fd = open(av, O_RDONLY);
out_fd = malloc(strlen(av)+strlen(av)+2);
sprintf"(buffer,%s/%s", av,av); (5 Replies)
I am using Solaris 10u11 on x86 machine, i am root, i want to use a gcc compiled code to use read10/write10 function of USCSI solaris library to access data from a normal USB mass storage device.
I am able to open a device prior to sending USCSI command via IOCTL.
IOCTL command works ok as... (0 Replies)
Discussion started by: danish2012
0 Replies
LEARN ABOUT ULTRIX
fread
fread(3s)fread(3s)Name
fread, fwrite - buffered binary input/output
Syntax
#include <stdio.h>
size_t fread(ptr, size, nitems, stream)
void *ptr;
size_t size, nitems;
FILE *stream;
size_t fwrite(ptr, size, nitems, stream)
void *ptr;
size_t size, nitems;
FILE *stream;
Description
The function reads into a block beginning at ptr, nitems of data of the size size (usually sizeof *ptr) from the named input stream. It
returns the number of items actually read.
If stream is stdin and the standard output is line buffered, then any partial output line will be flushed before any call to to satisfy the
The function appends, at most, nitems of data of the size size (usually sizeof *ptr) beginning at ptr to the named output stream. It
returns the number of items actually written.
Return Values
The and functions return 0 upon end of file or error.
See Alsoread(2), write(2), fopen(3s), getc(3s), gets(3s), printf(3s), putc(3s), puts(3s), scanf(3s)fread(3s)