NAME

PDLA::Lvalue - declare PDLA lvalue subs

DESCRIPTION

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

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

instead of the clumsy

  (my $tmp = $x->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 PDLA::Lvalue; # automatically done with all PDLA loaders

FUNCTIONS

subs

test if routine is a known PDLA lvalue sub

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

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

  @lvfuncs = PDLA::Lvalue->subs;

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

  print 'has lvalue subs' if PDLA::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 PDLA distribution. If this file is separated from the PDLA distribution, the copyright notice should be included in the file.