Beefy Boxes and Bandwidth Generously Provided by pair Networks
Pathologically Eclectic Rubbish Lister
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
I think I would do it thusly:
use strict; use warnings; eval { require Inline; Inline->import (C => Config => BUILD_NOISY => 1); require Inline; Inline->import (C =><<' EOC'); int foo() { warn("Using Inline\n"); return 42; } EOC }; # If Inline is unavailable, foo() simply calls # the sub bar() pure perl implementation. if($@) { *foo =\&bar; } sub bar { warn("Using Pure Perl Implementation\n"); return 42; } my $x = foo(); print "$x\n";
If Inline::C is not available, that uses the pure-perl implementation of foo() and outputs:
Using Pure Perl Implementation 42
Otherwise, it uses the the Inline::C implementation of foo() and outputs:
Using Inline 42
NOTE: Running that script with Inline support will also output the C compilation report - but only for the *first* running, of course.
Note also that those who have Inline::C can still access the pure-perl implementation of foo() if they wish, by directly calling bar().

Cheers,
Rob

In reply to Re: Best way to implement Inline::C/Pure Perl function in a module? by syphilis
in thread Best way to implement Inline::C/Pure Perl function in a module? by uG

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • Outside of code tags, you may need to use entities for some characters:
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others scrutinizing the Monastery: (4)
    As of 2014-10-25 11:27 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      For retirement, I am banking on:










      Results (143 votes), past polls