1. Why are the pointers' addresses every 32 ?
2. Am I correct in stating that memset is writing to memory that is not allocated to any of the 3 pointers ? Is it writing to memory in between the pointers ?
3. Are the 3 pointers contiguous in memory ?
4. I only allocated 10 bytes for each pointer. So how can "a" be 73 chars long etc. ?
Quote:
a = ----------------------------------------------------------------ccccccccc => address: 6299616 => number of chars: 73
b = --------------------------------ccccccccc => address: 6299648 => number of chars: 41
c = ccccccccc => address: 6299680 => number of chars: 9
d = 64
Hi all!
here is the file i am trying to sort :
GREIMBAJ00;BAN_CAV;Loader.sh;2003/06/13;17:04:04
GREIMBAJ00;PER_COT;Loader.sh;2003/06/13;17:04:16
GREIMBAJ00;PER_COT;Traitement.sh;2003/06/13;17:04:18
GREIMBAJ00;BAN_PAK;Loader.sh;2003/06/13;17:04:11... (3 Replies)
I have a program the will split a large file into smaller files. It works great. I, however, have problem of email these file out to other people:
I may have 1 or more files afer SPLIT
datafileaa
datafileab
datafileac
manually:
mailx -s "data" email@email.com<datafileaa
mailx -s... (5 Replies)
If one wants to get a start address of a array or a string or a block of memory via a function, there are at least two methods to achieve it:
(1) one is to pass a pointer-to-pointer parameter, like:
int my_malloc(int size, char **pmem)
{
*pmem=(char *)malloc(size);
if(*pmem==NULL)... (11 Replies)
Hi all,
I've got this question about using cp for copying multiples files from the same source directory to another directory, considering that my working directory ain't the same of the source directory.
Let me give you a simple example what I'm talking about:
Suppose the following files... (2 Replies)
Hi,
IS possible in ksh to make multiples menus?
For example:
My menu.
1)Option1
1.1)Option1.1
2.3)Option1.2
2)Option2
2.1)Option2.1
.
.
.
x)Exit
I've tried with case but no success.
Thanks in advance. (3 Replies)
Hi
I have this string with 3 seds..
cat /tmp/roletmp|sed "s/$role2del//" | sed "s/,,/,/" |sed "s/^,//" |sed 's/,$//'
How can I join these 3 seds in one?
regards
Israel. (3 Replies)
Hi Guys,
I wonder how can I determine when a given number is a multiple of another one in java. Let's say if I have 27 how can I determine whether is multiple of 5 using java programming. Thanks. (1 Reply)
hi guys
I got linux Centos 5.5 on grub I got the latest kernel and updates which I really don't know what I did and I lost a lot of modules and my system is not working properly
old kernel modules - this kernel is working fine
# lsmod
Module Size Used by
autofs4 ... (0 Replies)
Ques from newbie
I want to total column X from large number of files, and view totals for each file separately with the filename.
I have tried:
for i in `ls -1 *.pattern`; do cat "$i" | awk '{SUM += $4} END { printf("%8d\t%8d\n", $i,SUM) }'; done
does not work. appreciate your help (5 Replies)
Hi guys
I am newbie in using linux, how can i Separate file into multiples linux. I want the lines with same parent and id numbers print out into same files.
For example
Gm17 5135289 5136789 . Parent=533;ID=534;Name=Glyma17g07060 -
Gm17 5135289 5136789 . ... (2 Replies)
Discussion started by: grace_shen
2 Replies
LEARN ABOUT OPENDARWIN
memset
MEMSET(3) Linux Programmer's Manual MEMSET(3)NAME
memset - fill memory with a constant byte
SYNOPSIS
#include <string.h>
void *memset(void *s, int c, size_t n);
DESCRIPTION
The memset() function fills the first n bytes of the memory area pointed to by s with the constant byte c.
RETURN VALUE
The memset() function returns a pointer to the memory area s.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+----------+---------------+---------+
|Interface | Attribute | Value |
+----------+---------------+---------+
|memset() | Thread safety | MT-Safe |
+----------+---------------+---------+
CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD.
SEE ALSO bstring(3), bzero(3), swab(3), wmemset(3)COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
GNU 2017-03-13 MEMSET(3)