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Perl in a Nutshell, 2nd Edition
book

Perl in a Nutshell, 2nd Edition

by Nathan Patwardhan, Ellen Siever, Stephen Spainhour
June 2002
Beginner content levelBeginner
759 pages
80h 42m
English
O'Reilly Media, Inc.
Content preview from Perl in a Nutshell, 2nd Edition

Devel::PPPort

Allows you to write Perl code that’s as compatible as possible with the widest range of Perl interpreters. Devel::PPPort ships with ppport.h, with which you can incorporate some of the newest features of Perl with your older Perl releases. Devel::PPPort is important for developing modules, since newer Perl versions do not have as many issues with namespace pollution that older Perl versions had.

To use Devel::PPPort, copy ppport.h to wherever you’re doing your development work, and use the WriteFile() method when you’re ready to generate the necessary code. WriteFile() is used to write a C header file for XS modules. ppport.h contains a series of macros that allow XS to be built under older versions of Perl. For example:

my $port_file = '/users1/nvp/Perl/XS/Projects/ppport.h';
Devel::PPPort::WriteFile($port_file);

This generates ppport.h in /users1/nvp/Perl/XS/Projects.

WriteFile() takes an optional parameter representing the filename of the ppport header file. If empty, ppport.h is generated in the current directory. WriteFile() returns true if the write was successful, and false otherwise.

ppport.h provides access to the Perl API.

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Publisher Resources

ISBN: 0596002416Errata Page