Editing XS (Perl) (section)

===Perl interpreter===
{{main|calling convention}}

The [[interpreter (computing)|Perl interpreter]] is a C program, so in principle there is no obstacle to calling from Perl to C. However, the XS interface is complex{{why|date=January 2017}} and highly technical, and using it requires some understanding of the interpreter. The earliest reference on the subject was the [https://web.archive.org/web/20150219101254/http://perldoc.perl.org/perlguts.html perlguts] [[Plain Old Documentation|POD]].