Your example does not apply in my case, because in your case, the program would not even start to run. My problem applies to a program, which is already running (i.e. already produced output). When eval finds a syntax error during compile, eval says:

If there is a syntax error ..., an undefined value is returned by "eval", and $@ is set to the error message.

Incidentally, when rechecking my code, I indeed found a bug, in that I don't properly handle the case when eval returns undef, so maybe this explains what I have seen: eval *does* return, but returns undef, and my program crashes when it uses that undef value. I will fix this, to be on the safe side.

-- 
Ronald Fischer <ynnor@mm.st>

In reply to Re^4: Finding out whether a module contains a certain package by rovf
in thread Finding out whether a module contains a certain package by rovf

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!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • 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, details, 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, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            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.