North_TJ@cc.curtin.edu.au (Tim North) (10/09/90)
Excuse my ignorance on this, but I've just come across a reference to:
"IEEE/ANSI Standard 770X3.160-8989 Standard for the *Extended* High Level
Programming Language Pascal (1989)".
This is a new one to me. Would some kind soul please tell me (any or all of):
i. What the main extensions are.
ii. Has the standard been implemented yet?
iii. Are there any textbooks/references on it?
iv. Where can I order the standard from?
Many thanks in advance.
Tim North,
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---------------------------------------------------------------------------reagan@hiyall.enet.dec.com (John R. Reagan) (10/10/90)
In article <3910.2711a4a9@cc.curtin.edu.au>, North_TJ@cc.curtin.edu.au (Tim North) writes... >Excuse my ignorance on this, but I've just come across a reference to: > > "IEEE/ANSI Standard 770X3.160-8989 Standard for the *Extended* High Level > Programming Language Pascal (1989)". > >This is a new one to me. Would some kind soul please tell me (any or all of): >i. What the main extensions are. >ii. Has the standard been implemented yet? >iii. Are there any textbooks/references on it? >iv. Where can I order the standard from? > >Many thanks in advance. >Tim North, Extended Pascal is the new standard from the Pascal standards committee. It contains many features that exist as extensions in many Pascal compilers. I've posted the foreword to Extended Pascal to this newsgroup in the past. The main extensions include: - Schema types. These types provide run-time sized types and variables. Quite useful... - Separate compilation in the Modula-2 style of IMPORT and EXPORT - Variable-length strings - AND_THEN and OR_ELSE short-circuit Boolean operators - Variables can be bound to external entities (such as real-time clocks) - Direct access files - Restricted/private types - initial state on types, fields, and variables - Complex numbers - and many more I don't know of any Pascal that conforms completely to Extended Pascal. VAX Pascal V4.0 contains many features from Extended Pascal, including schema. I don't know of any published textbook at this time. I'm aware of some in the works, but I can't say anymore than that. You can order the standard from the IEEE. It was listed in their last order form. The price was $55 US ($49.50 US for IEEE members). --- John Reagan Digital Equipment Corporation reagan@hiyall.enet.dec.com Disclaimer: The opinions and statements expressed by me are not necessarily those of Digital Equipment Corporation. ---