Q21832: Reserved Words Not Necessarily Implemented as Features

Article: Q21832
Product(s): See article
Version(s): 1.00 1.01 1.02 2.00 2.01 3.00 4.00 4.00b 4.50
Operating System(s): MS-DOS
Keyword(s): ENDUSER | B_BasicCom | mspl13_basic
Last Modified: 28-DEC-1989

This article discusses why some of the reserved words listed in the
manual are not implemented in QuickBASIC. For example, LCOPY is not
supported in QuickBASIC Version 1.00, 1.01, 1.02, 2.00, 2.01, 3.00,
4.00, 4.00b, or 4.50 for MS-DOS, Microsoft BASIC Compiler Version
6.00, 6.00b for MS-DOS and MS OS/2, or Microsoft BASIC PDS Version
7.00 for MS-DOS and MS OS/2. Another case is where PALETTE and PALETTE
USING were not supported in QuickBASIC Versions 1.x, but were added in
Versions 2.00 and later.

Keywords are reserved for reasons of compatibility with past, present,
and future versions of Microsoft BASIC. A list of reserved words is
provided to warn programmers not to use keywords used in past and
present versions of Microsoft BASIC. Some words are on the list but
not currently implemented or supported because these reserved words
represent possible additions for future versions of BASIC.

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