PDL::Lvalue

Lvalue(3pm)           User Contributed Perl Documentation          Lvalue(3pm)



NAME
       PDL::Lvalue - declare PDL lvalue subs

DESCRIPTION
       Declares a subset of PDL functions so that they can be used as lvalue
       subs. In particular, this allows simpler constructs such as

         $a->slice(',(0)') .= 1;

       instead of the clumsy

         (my $tmp = $a->slice(',(0)')) .= 1;

       This will only work if your perl supports lvalue subroutines (i.e. ver-
       sions  >= v5.6.0). Note that lvalue subroutines are currently regarded
       experimental.

SYNOPSIS
        use PDL::Lvalue; # automatically done with all PDL loaders

FUNCTIONS
       subs

       test if routine is a known PDL lvalue sub

         print "slice is an lvalue sub" if PDL::Lvalue->subs('slice');

       returns the list of PDL lvalue subs if no routine name is given, e.g.

         @lvfuncs = PDL::Lvalue->subs;

       It can be used in scalar context to find out if your PDL has lvalue
       subs:

         print 'has lvalue subs' if PDL::Lvalue->subs;

AUTHOR
       Copyright (C) 2001 Christian Soeller (c.soeller AT auckland.nz). All
       rights reserved. There is no warranty. You are allowed to redistribute
       this software / documentation under certain conditions. For details,
       see the file COPYING in the PDL distribution. If this file is separated
       from the PDL distribution, the copyright notice should be included in
       the file.



perl v5.8.8                       2004-09-07                       Lvalue(3pm)