The problem is in the two following lines:
and
In both cases the deal and computerdeal function are executed in a subshell, in the first case as the left hand side of a pipe, in the second case as part of a command substitution. The global variables that are set inside those functions are local to that subshell. When the subshell finishes, those variables and their values will be lost...
By contrast the first time the deal function is called:
it is done in the current shell itself and the value of global variable cards_remaining that gets set inside that function is the value that gets printed at the end..
So instead you could run those functions in the current shell and then use the global variables that are being set inside them...
Last edited by Scrutinizer; 11-13-2016 at 03:45 AM..
This User Gave Thanks to Scrutinizer For This Post:
How can I get a bash script to wait and read and count $i messages that a running program (drbl clonezilla) sends to the console (terminal) and only then move on to the next line in the script when the count is matched (the next line is the last line of the script and is a reboot)?
The script... (0 Replies)
Hello All,
I was wondering if it would be possible to create a "racing" game in script. The game play would be as follows. Script will read the following input:
Start
|b| | | | |
|r| | | | |
First player (b) will roll a die to see how many spaces to move. This is will continue until the... (0 Replies)
How can I make a bash script that keeps on running after I have closed the terminal?
Or a script that runs without having the terminal window open? (1 Reply)
Okay so Zork sparked my interest in this. I have been learning to program for the last year and a half. I've dabbled in everything from Java to Ruby to PHP & XHTML & SQL, and now I'm on bash. I really like bash scripting. Its easy and fun. I just started two days ago. Pretty much I've been writing... (1 Reply)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
I have written a script for a dice game that: (1) tells user that each of the 2 die are 6 sided (Spots=6); (2)... (3 Replies)
So, I made a script beginning with #!/bin/bash on gedit.
And I double clicked it to run in terminal and I end up with "The child process exited normally with status 127" and "command not found".
If I run the same script from the terminal as "tcsh (script name)" it runs just fine.
If I... (8 Replies)
Hello guys I'm new to shell scripting and I need to make a game using shell script. I want to know if it is possible for me a total noob to shell scripting to make this game.
The game concept is simple:
First thing when you launch the script you get a menu in which you select if you want to... (3 Replies)
Discussion started by: Othmane
3 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)