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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