Hi ...
I am having a string in the buffer .. It is binary data it may contain space . When i try to append a space in using strcpy it is taking the inbetween \n as the end and appending space ..
How to append space in the binary data in C ?? please let me know
Thanks in advance,
Arun. (2 Replies)
Hi,
I searched the forum for this but couldn't find the answer. Basically I have a line of code I want to insert into a file using sed. The line of code is basically something like "address=1.1.1.1" where 1.1.1.1 is an IP Address that will vary depending on what the user enters. I'll just refer... (4 Replies)
Hi All,
I have a requirement, in which i have to append some spaces to the variable, and then send it to another function.
I am new to the UNIX shell programming. Ultimately the length of the string should be 40 characters.
exp:
Login = "rallapalli" (length = 10)
i have to append 30 spaces to... (2 Replies)
Hey, I'm creating a custom useradd script, and I'm giving the option to add secondary groups. Basically what I want to do is ask for the name of the group, you type in the group you want to add, it assigns that group name to the variable $sgroup. Then the scripts asks if you want add another. If... (0 Replies)
In a particular path of a server I have number of files.The files are generated every date with a date_mth stap on this.There are different files for different clients.
For example in /data1 path i have
X_0416_Score
Y_0416_Score
Z_0417_Score
X_0417_Score
A_0417_Score
If i will run the... (1 Reply)
Hi,
I would like to know if it's possible to append data into a variable, rather than into a file. Although I can write information into a temporary file in /tmp, I'd rather if possible write into a variable, as I don't like the idea that should my script fail, I'll be polluting the server with... (5 Replies)
I am calling SQL script in my UNIX Shell script and trying to create the CSV file and my last column value of each row is 23 blank spaces.
In my SQL script,the last column is like below.
RPAD(' ',23,' ') -- Padding 23 blank Spaces
The CSV file is generated but the sapce(23 spaces) is... (2 Replies)
I have a Query!
by using command
cat >> file1 we can append data's to a already existing file, Similarly is it possible to append a data to a variable.
Thanks in Advance!! (2 Replies)
Version Info
$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.4 (Tikanga)
$
$ echo $0
-ksh
I was trying to append date to the file name. The following syntax has worked
$ touch HELLO-`date '+%d-%b-%Y'`.txt
$ ls -alrt HELL*
-rw-r--r-- 1 rlapp oinstall 0 Feb 20... (2 Replies)
Discussion started by: John K
2 Replies
LEARN ABOUT DEBIAN
devel::refcount
Devel::Refcount(3pm) User Contributed Perl Documentation Devel::Refcount(3pm)NAME
"Devel::Refcount" - obtain the REFCNT value of a referent
SYNOPSIS
use Devel::Refcount qw( refcount );
my $anon = [];
print "Anon ARRAY $anon has " . refcount($anon) . " reference
";
my $otherref = $anon;
print "Anon ARRAY $anon now has " . refcount($anon) . " references
";
DESCRIPTION
This module provides a single function which obtains the reference count of the object being pointed to by the passed reference value.
FUNCTIONS
$count = refcount($ref)
Returns the reference count of the object being pointed to by $ref.
COMPARISON WITH SvREFCNT
This function differs from "Devel::Peek::SvREFCNT" in that SvREFCNT() gives the reference count of the SV object itself that it is passed,
whereas refcount() gives the count of the object being pointed to. This allows it to give the count of any referent (i.e. ARRAY, HASH,
CODE, GLOB and Regexp types) as well.
Consider the following example program:
use Devel::Peek qw( SvREFCNT );
use Devel::Refcount qw( refcount );
sub printcount
{
my $name = shift;
printf "%30s has SvREFCNT=%d, refcount=%d
",
$name, SvREFCNT($_[0]), refcount($_[0]);
}
my $var = [];
printcount 'Initially, $var', $var;
my $othervar = $var;
printcount 'Before CODE ref, $var', $var;
printcount '$othervar', $othervar;
my $code = sub { undef $var };
printcount 'After CODE ref, $var', $var;
printcount '$othervar', $othervar;
This produces the output
Initially, $var has SvREFCNT=1, refcount=1
Before CODE ref, $var has SvREFCNT=1, refcount=2
$othervar has SvREFCNT=1, refcount=2
After CODE ref, $var has SvREFCNT=2, refcount=2
$othervar has SvREFCNT=1, refcount=2
Here, we see that SvREFCNT() counts the number of references to the SV object passed in as the scalar value - the $var or $othervar
respectively, whereas refcount() counts the number of reference values that point to the referent object - the anonymous ARRAY in this
case.
Before the CODE reference is constructed, both $var and $othervar have SvREFCNT() of 1, as they exist only in the current lexical pad. The
anonymous ARRAY has a refcount() of 2, because both $var and $othervar store a reference to it.
After the CODE reference is constructed, the $var variable now has an SvREFCNT() of 2, because it also appears in the lexical pad for the
new anonymous CODE block.
PURE-PERL FALLBACK
An XS implementation of this function is provided, and is used by default. If the XS library cannot be loaded, a fallback implementation in
pure perl using the "B" module is used instead. This will behave identically, but is much slower.
Rate pp xs
pp 225985/s -- -66%
xs 669570/s 196% --
SEE ALSO
o Test::Refcount - assert reference counts on objects
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2011-11-15 Devel::Refcount(3pm)