How to Install and Uninstall perl-constant-defer Package on openSUSE Leap

Last updated: November 23,2024

1. Install "perl-constant-defer" package

Please follow the steps below to install perl-constant-defer on openSUSE Leap


    
        
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                sudo zypper refresh
            
                    
    
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                sudo zypper install
            
                        
                perl-constant-defer
            
                    
    
    Copied

2. Uninstall "perl-constant-defer" package

This tutorial shows how to uninstall perl-constant-defer on openSUSE Leap:


    
        
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                sudo zypper remove
            
                        
                perl-constant-defer
            
                    
    
    Copied

3. Information about the perl-constant-defer package on openSUSE Leap

Information for package perl-constant-defer:
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Repository : Main Repository
Name : perl-constant-defer
Version : 6-bp155.2.10
Arch : noarch
Vendor : openSUSE
Installed Size : 59.1 KiB
Installed : No
Status : not installed
Source package : perl-constant-defer-6-bp155.2.10.src
Upstream URL : http://search.cpan.org/dist/constant-defer/
Summary : Constant Subs with Deferred Value Calculation
Description :
'constant::defer' creates a subroutine which on the first call runs given
code to calculate its value, and on any subsequent calls just returns that
value, like a constant. The value code is discarded once run, allowing it
to be garbage collected.
Deferring a calculation is good if it might take a lot of work or produce a
big result but is only needed sometimes or only well into a program run. If
it's never needed then the value code never runs.
A deferred constant is generally not inlined or folded (see the
perlop/Constant Folding manpage) since it's not a single scalar value. In
the current implementation a deferred constant becomes a plain constant
after the first use, so may inline etc in code compiled after that (see the
/IMPLEMENTATION manpage below).
See _examples/simple.pl_ in the constant-defer source code for a complete
sample program.