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NAME

     Fatal - replace functions with equivalents which succeed or
     die



SYNOPSIS
         use Fatal qw(open close);

         sub juggle { . . . }
         import Fatal 'juggle';




DESCRIPTION
     `Fatal' provides a way to conveniently replace functions
     which normally return a false value when they fail with
     equivalents which raise exceptions if they are not
     successful.  This lets you use these functions without
     having to test their return values explicitly on each call.
     Exceptions can be caught using `eval{}'.  See the perlfunc
     manpage and the perlvar manpage for details.

     The do-or-die equivalents are set up simply by calling
     Fatal's `import' routine, passing it the names of the
     functions to be replaced.  You may wrap both user-defined
     functions and overridable CORE operators (except `exec',
     `system' which cannot be expressed via prototypes) in this
     way.

     If the symbol `:void' 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

             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;




AUTHOR
     Lionel.Cons@cern.ch

     prototype updates by Ilya Zakharevich ilya@math.ohio-
     state.edu









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