Lintian::Relation::Version - Online Linux Manual PageSection : 3
Updated : 2020-11-27
Source : Lintian v2.104.0
Note : Debian Package Checker
NAMELintian::Relation::Version − Comparison operators on Debian versions
SYNOPSIS​ print "yes\n" if versions_equal('1.0', '1.00'); ​ print "yes\n" if versions_gte('1.1', '1.0'); ​ print "no\n" if versions_lte('1.1', '1.0'); ​ print "yes\n" if versions_gt('1.1', '1.0'); ​ print "no\n" if versions_lt('1.1', '1.1'); ​ print "yes\n" if versions_compare('1.1', '<=', '1.1');
DESCRIPTIONThis module provides five functions for comparing version numbers. The underlying implementation uses libapt−pkg−perl to ensure that the results match what dpkg will expect.
FUNCTIONSversions_equal(A, B) Returns true if A is equal to B (=) and false otherwise. versions_lte(A, B) Returns true if A is less than or equal (<=) to B and false otherwise. versions_gte(A, B) Returns true if A is greater than or equal (>=) to B and false otherwise. versions_lt(A, B) Returns true if A is less than (<<) B and false otherwise. versions_gt(A, B) Returns true if A is greater than (>>) B and false otherwise. versions_compare(A, OP, B) Returns true if A OP B, where OP is one of =, <=, >=, ​<<, or >>, and false otherwise. versions_comparator (A, B) Returns −1, 0 or 1 if the version A is (respectively) less than, equal to or greater than B. This is useful for (e.g.) sorting a list of versions: ​ foreach my $version (sort versions_comparator @versions) { ​ ... ​ }
AUTHOROriginally written by Russ Allbery <rra@debian.org> for Lintian and adapted to use libapt-pkg-perl by Adam D. Barratt <adam@adam−barratt−org.uk>.
SEE ALSO​lintian (1) 0
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