Hello everyone, can somebody tell me what is wrong with this code:
while true
do
java myTime > myTime.log
sleep 60
done
I get the following error:
./myTime: Syntax error at line 1 : `while' is not matched.
Thanks in advance! (6 Replies)
Hello all,
Can someone tell me why I'm getting an error in the following code:
export return_code="$?"
if then
echo "load_shaw.sas failed."
exit
else
echo "Trigger the next script..."
# /path/to/next/script
fi
I get an error... (3 Replies)
I just wanted to assign the filename to a variable
filename="abc"
datestrng=`date +%Y%m%d`
filextn="txt"
"LOCAL_FILE"${i}=${filename}"_"${datestrng}"."${filextn}
echo "LOCAL_FILE"${i}
I get the following error on 2nd last line
ksh: LOCAL_FILE1=abc_20081114.txt: not... (3 Replies)
Trying to do a file count on files between a specific date. I entered the following command, but it's not working:
find . -type f \( -newer startdate -a ! -newer enddate \) -exec "ls -l | wc -l" {} \;
lil help? :D (4 Replies)
1) I have the below code in concattxnrecords.sh shell script and it is calling the genericVars.sh shell script which is mentioned as below has some code inside it which would intialize some variables in it, now my question is will this shell script would inherit those variable definitions or not... (3 Replies)
Hello, all
Suppose my current directory has 3 files:
file_1 file_2 file_3
I wrote the following codes:
awk 'BEGIN{while("ls"|getline d) {myarray++}}; END{close("ls");for (i in myarray){print i, myarray}}' /dev/null
I expect the output be like:
1 file_1
2 file_2
3 file_3
... (7 Replies)
Hi,
In multi-level inheritance:
class A {
public:
void fun() { cout << "A" << endl; }
};
class B : public A {
public:
void fun() { cout << "A" << endl; }
};
class C : public B { };
int main() {
C c;
c.fun(); // Ans: A
} (1 Reply)
All,
I have a basic buzz program written in python with return function. If i change return with print,it works fine but i want to know whats wrong with return statement.Can anyone help me whats wrong with this
#!/usr/bin/python
def div4and6(s,e):
for i in range(s,e+1):
if... (5 Replies)
Discussion started by: oky
5 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)