Number::Compare.3pm

Langue: en

Autres versions - même langue

Version: 2002-10-25 (ubuntu - 24/10/10)

Section: 3 (Bibliothèques de fonctions)

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NAME

Number::Compare - numeric comparisons

SYNOPSIS

  Number::Compare->new(">1Ki")->test(1025); # is 1025 > 1024
 
  my $c = Number::Compare->new(">1M");
  $c->(1_200_000);                          # slightly terser invocation

DESCRIPTION

Number::Compare compiles a simple comparison to an anonymous subroutine, which you can call with a value to be tested again.

Now this would be very pointless, if Number::Compare didn't understand magnitudes.

The target value may use magnitudes of kilobytes ("k", "ki"), megabytes ("m", "mi"), or gigabytes ("g", "gi"). Those suffixed with an "i" use the appropriate 2**n version in accordance with the IEC standard: http://physics.nist.gov/cuu/Units/binary.html

METHODS

->new( $test )

Returns a new object that compares the specified test.

->test( $value )

A longhanded version of $compare->( $value ). Predates blessed subroutine reference implementation.

->parse_to_perl( $test )

Returns a perl code fragment equivalent to the test.

AUTHOR

Richard Clamp <richardc@unixbeard.net> Copyright (C) 2002 Richard Clamp. All Rights Reserved.

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

http://physics.nist.gov/cuu/Units/binary.html