NAME

Language::MuldisD::Core - Muldis D core data types and operators

VERSION

This document is Language::MuldisD::Core version 0.19.1.

PREFACE

This document is part of the Muldis D language specification, whose root document is Language::MuldisD; you should read that root document before you read this one, which provides subservient details.

That said, because this Core document is otherwise too large to comfortably fit in one file, it has been split into pieces and therefore has its own tree of parts to follow, which it is the root of: Language::MuldisD::Core::Types, Language::MuldisD::Core::Types_Catalog, Language::MuldisD::Core::Routines, Language::MuldisD::Core::Functions_Scalar, Language::MuldisD::Core::Functions_Nonscalar.

DESCRIPTION

Muldis D has a mandatory core set of system-defined (eternally available) entities, which is referred to as the Muldis D core or the core; they are the minimal entities that all Muldis D implementations need to provide; they are mutually self-describing and are used to bootstrap the language; any entities outside the core, called Muldis D extensions, are non-mandatory and are defined in terms of the core or each other, but the reverse isn't true.

This current Core document features the boolean, integer, rational, bit string, and character string types and operators, plus the tuple and relation type constructors (and quasi- variants) and operators, plus the type system minimal and maximal types, plus the special types used to define the system catalog, and the polymorphic operators that all types, or some types including core types, have defined over them.

(Technically speaking, not all of the core types or operators are necessary for bootstrapping the language. In fact, any or all of the rationals, bit strings, and general character strings can be excised from minimalist implementations, and the language fundamentals would still work with just the booleans, integers, tuples, relations, and special catalog types, which include the entity-name-specific character string types. But said excisables are strongly recommended for universal support because they are very frequently useful in practice, and they are not any more complicated.)

Extensions are in these other documents: Language::MuldisD::Ext::Temporal, Language::MuldisD::Ext::Spatial.

SEE ALSO

Go to Language::MuldisD for the majority of distribution-internal references, and Language::MuldisD::SeeAlso for the majority of distribution-external references.

AUTHOR

Darren Duncan (perl@DarrenDuncan.net)

LICENSE AND COPYRIGHT

This file is part of the formal specification of the Muldis D language.

Muldis D is Copyright © 2002-2008, Darren Duncan.

See the LICENSE AND COPYRIGHT of Language::MuldisD for details.

ACKNOWLEDGEMENTS

The ACKNOWLEDGEMENTS in Language::MuldisD apply to this file too.