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devel::cover::truth_table(3pm) [debian man page]

Devel::Cover::Truth_Table(3pm)				User Contributed Perl Documentation			    Devel::Cover::Truth_Table(3pm)

Devel::Cover::Truth_Table - Create and manipulate truth tables for coverage objects. VERSION
version 0.89 SYNOPSIS
use Devel::Cover::Truth_Table; # $a || $b my $or_tt = Devel::Cover::Truth_Table->new_primitive('or_3', 0, 1, 1); # $c && $d my $and_tt = Devel::Cover::Truth_Table->new_primitive('and_3', 1, 0, 1); # merge contents of $and_tt into right column of $or_tt, to create # $a || ($c && $d) $or_tt->right_merge($and_tt); # get a (sorted) textual representation my @text = $or_tt->sort->text; print "$_ " foreach @text; __END__ A B C |exp|hit -------------- 0 0 X | 0 |--- 0 1 0 | 0 |--- 0 1 1 | 1 |+++ 1 X X | 1 |+++ -------------- DESCRIPTION
This module provides methods for creating and merging conditional primitives ("$a && $b", "$c || $d", etc.) into more complex composite expressions. METHODS
new_primitive($op, @coverage) Create a new truth table based on one of the built-in primitives, which are the subclasses of Devel::Cover::DB::Condition. $op is one of the following: and_3 "and" or "&&" with three conditional paths. or_3 "or" or "||" with three conditional paths. or_2 "or" or "||" with two conditional paths. (i.e., when the right hand side of the expression is a constant) xor_4 "xor" with four conditional paths. @coverage is a list booleans identifying which of the possible paths have been covered. sort() Sorts a truth table (in place) and returns the sorted object. text() Format a truth table to an array of strings for printing. html() Format a truth table in HTML. error() percentage() Determines the proportion of possible conditions that have coverage. right_merge($sub_table) Merge entries from $sub_table into right column of table. left_merge($sub_table) Merge entries from $sub_table into left column of table. SEE ALSO
Devel::Cover BUGS
None that I'm aware of... LICENSE
Copyright 2002 Michael Carman <> This software is free. It is licensed under the same terms as Perl itself. The latest version should be available from: perl v5.14.2 2012-06-16 Devel::Cover::Truth_Table(3pm)

Check Out this Related Man Page

GCOV2PERL(1p)						User Contributed Perl Documentation					     GCOV2PERL(1p)

gcov2perl - convert gcov files to Devel::Cover databases VERSION
version 0.89 SYNOPSIS
gcov2perl -h -i -v -db database gcov_files DESCRIPTION
Convert gcov files to Devel::Cover databases. OPTIONS
The following command line options are supported: -db database - specify the database to use -h -help - show help -i -info - show documentation -v -version - show version DETAILS
To obtain coverage of XS files they must first be compiled with the appropriate options. In a standard Makefile environment, such as that created by ExtUtils::MakeMaker, this can be accomplished with the command: HARNESS_PERL_SWITCHES=-MDevel::Cover make test CCFLAGS=-O0 -fprofile-arcs -ftest-coverage OTHERLDFLAGS=-fprofile-arcs -ftest-coverage If you have already built your object files it may be necessary to run make clean first, or to find some other way to ensure that they get rebuilt with the options gcov requires. Now the code coverage data has been collected "gcov" needs to be run: gcov Mylib.xs This will create one or more gcov files on which you can run "gcov2perl": gcov2perl Mylib.xs.gcov Finally, "cover" should be run as usual with any options required: cover If you are running everything with standard options, you can do all this with one command: cover -test EXIT STATUS
The following exit values are returned: 0 All files converted successfully >0 An error occurred. SEE ALSO
Devel::Cover BUGS
Copyright 2001-2012, Paul Johnson ( This software is free. It is licensed under the same terms as Perl itself. The latest version of this software should be available from my homepage: perl v5.14.2 2012-06-15 GCOV2PERL(1p)
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