NAME¶
PDL::Delta - PDL changes between V1.0 and V2.0
DESCRIPTION¶
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:¶
$a = zeroes 10,10;
$$a{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
$a->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.
SEE ALSO¶
The
Changes file for exhaustive details on what changed.
The
INSTALL file for how to build PDL.
The
README file for general stuff.
HISTORY¶
pdldelta was inspired by
perldelta man page in the Perl 5.004
distribution.