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 Guyz,
Can anyone help me in the following:-
I want to delete all that is there in my file that occures before the first space comes.
Eg. My file InputFile conatins the following:
123 12345678 87654 Hello
09867 09876654 34567 Happy
I want the data occuring before the occurence... (3 Replies)
Good afternoon! Im new at scripting and Im trying to write a script to
calculate total space, total used space and total free space in filesystem names matching a keyword (in this one we will use keyword virginia). Please dont be mean or harsh, like I said Im new and trying my best. Scripting... (4 Replies)
Hi
I need help on this. Its very urgent for me.. please try to help me out..
I have data in tables in DB2 database. I would like to export the data from DB2 tables into a text file, which has to be space delimited. so that I can carry out awk, grep operations on that file. I tried to export... (2 Replies)
I need to write a Bash script to process a data file that is in this format:
1 A B C D E
2 F G "H H" I J
As you can see, the data is delimited by a space, but there are also some fields that contain spaces and are surrounded by double-quotes. An example of that is "H H".
I wrote... (7 Replies)
Hi All,
I was wondering how I can convert each line in an input file where fields are separated by variable width spaces into a CSV file. Below is the scenario what I am looking for.
My Input data in inputfile.txt
19 15657 15685 Sr2dReader 107.88 105.51... (4 Replies)
I have a data file where three data sets are written in three columns. Can I increase the space between the columns without reading them?
Also can I insert particular patterns, say comma between 1st and 2nd column and colon between 2nd and 3rd column? (13 Replies)
Discussion started by: hbar
13 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)