PDL::Delta1p
Pdl changes between v1.0 and v2.0
Overview
This file is an attempt to list the major user-visible changes between PDL versions 1.0 and 2.0.
Core Changes
Piddles are not hashes any more:
$x = zeroes 10,10;$$x{FOO} = "bar"
doesn't work. They are currently scalar references (to opaque C structures in finer terms) because of speed as well as syntactic issues. If you want to have a hash, use
$x->hdr()which returns a reference to an anonymous hash. Also, subclassing works if you store a piddle in the hash member ``PDL''.
There are also many core enhancements to support Dataflow and Slicing tricks, but these do not introduce any incompatibilities.
Incompatible Changes vs 1.11
rgrep
|
Order of the arguments has changed. |
|---|---|
copy method
|
No longer copies the header. This may not be a misfeature. |
Documentation Changes
Many of the base and library pods were updated.
Releases
13 releases since Debian 2.0 (Hamm); the text changed 12 times.