redhat man page for pdl::lvalue

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

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. versions  >= 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@auckland.ac.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 sepa-
       rated from the PDL distribution, the copyright notice should be included in the file.

perl v5.8.0							    2002-05-07								 Lvalue(3)