# $Id: features.pod 7540 2005-02-19 10:57:30Z bernhard $

=head1 TITLE

State of implementation

=head1 What works?

=head2 Chapter 1 Introduction and preliminaries

=over

=item --version

=item --help

=back

=head2 Chapter 10 Macros for text handling

=over

=item Macro b<len>

=item Macro b<index>

=item Macro b<substr>

=item Macro b<format>

=back

=head2 Chapter 11 Macros for doing arithmetic

=over

=item Macro b<incr>

=item Macro b<decr>

=item Macro b<eval>

=back

=head2 Chapter 13 Miscellaneous builtin macros

=over

=item Macro b<printerr>

=back

=head1 What doesn't works?

L<../TODO.pod>

=head1 What are the differences to GNU m4?

=head1 SEE ALSO

TODO.pod

=head2 AUTHORS

=cut
