I like the concept, I would like to ask that we do not support INTEGER as a type, and be more specific by limiting to SHORTINT, SMALLINT, LONGINT, INT64. That way code snippets are not confusing when you implement 16bit INT logic on a 32bit INT environment. Because I do a lot of documentation for n00bs in Pascal - the interchangeable INTEGER is probably one of Borland's biggest mistakes with the grammar! I would love to see FPC make the statement that the type INTEGER is 16bit only - deal with people freaking out for a year or two, and move the language forward. Even the INTEGER example here is assuming 16bit - which would be incorrect on 32bit platforms in specific $MODE. (may have picked wrong wording, however, I think everyone see's the point).
Other than that, if FPC adds this, I will add it to Modern Pascal, so at least the two products are supporting "BASED". On Tue, Dec 26, 2017 at 8:27 AM, Mark Morgan Lloyd < markmll.fpc-de...@telemetry.co.uk> wrote: > On 26/12/17 12:45, Giuliano Colla wrote: > > /In short the BASED construct makes the C-style dereferencing operator >> unnecessary, by moving dereferencing from code to declaration. >> >> In fpc this translates into code looking like this, in this trivial >> example: >> >> var >> I: BYTE; >> I1: INTEGER; >> ItemPtr: Pointer; >> Item: BYTE BASED ItemPtr; >> IntegerItem: INTEGER BASED ItemPtr; >> .... >> ItemPtr := @I; >> Item := $41; >> .... >> ItemPtr := @I1; >> IntegerItem := -32767; >> >> This code will load the BYTE value $41 into the variable I, and the >> INTEGER value -32767 into the variable I1. >> > > What does gdb (and possibly other debuggers) make of this? Is it really > appropriate to declare Item as a variable, when it's really more akin to a > macro? > > -- > Mark Morgan Lloyd > markMLl .AT. telemetry.co .DOT. uk > > [Opinions above are the author's, not those of his employers or colleagues] > _______________________________________________ > fpc-devel maillist - fpc-devel@lists.freepascal.org > http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel >
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