Fatal - replace functions with equivalents which succeed or die

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This lets you use these functions without having to test their return values explicitly on each call. Exceptions can be caught using <code>eval{}</code>. See <a href="/5.6.0/perlfunc">perlfunc</a> and <a href="/5.6.0/perlvar">perlvar</a> for details.</p> <p>The do-or-die equivalents are set up simply by calling Fatal's <code>import</code> routine, passing it the names of the functions to be replaced. You may wrap both user-defined functions and overridable CORE operators (except <code>exec</code>, <code>system</code> which cannot be expressed via prototypes) in this way.</p> <p>If the symbol <code>:void</code> appears in the import list, then functions named later in that import list raise an exception only when these are called in void context--that is, when their return values are ignored. For example</p> <pre><code>use Fatal qw/:void open close/; # properly checked, so no exception raised on error if(open(FH, "< /bogotic") { warn "bogo file, dude: $!"; } # not checked, so error raises an exception close FH;</code></pre> <h1 id="AUTHOR"><a class="permalink" href="#AUTHOR">#</a>AUTHOR</h1> <p>Lionel.Cons@cern.ch</p> <p>prototype updates by Ilya Zakharevich ilya@math.ohio-state.edu</p> </div> <div id="footer"> <p>Perldoc Browser is maintained by Dan Book (<a href="https://metacpan.org/author/DBOOK">DBOOK</a>). Please contact him via the <a href="https://github.com/Grinnz/perldoc-browser/issues">GitHub issue tracker</a> or <a href="mailto:dbook@cpan.org">email</a> regarding any issues with the site itself, search, or rendering of documentation.</p> <p>The Perl documentation is maintained by the Perl 5 Porters in the development of Perl. 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Fatal - replace functions with equivalents which succeed or die - Perldoc Browser