Am 22.10.2017 10:51 schrieb "Dominik Rappaport" <domi...@rappaport.at>:
Hi, I hope this question is not part of the FAQ list. What are the plans for FPC as to the support of the various ISO modes of Pascal? At the moment, there is a switch to enable "ISO" mode, but it's unclear to me which ISO standard this option enforces (Standard Pascal 1983 or 1990 or Extended Pascal). In particular, because even some features from Standard Pascal are missing: The ISO mode refers to Standard Pascal. In trunk there's also a new work-in-progress ExtPas mode. For example, FPC: 1. Doesn't raise an error or warning if the wrong order of statements (var before type) is specified, as mandated by Standard Pascal 2. Doesn't raise an error or warning if "(input, output)" or an equivalent statement is missing after "program", as mandated by Standard Pascal Patches welcome. 3. Doesn't implement the get and put procedure 4. Doesn't support Standard Pascal I/O (like f^ as the current input/output) AFAIK these should be implemented in trunk. 5. Doesn't implement conformant arrays It might be that these are supported in trunk as well, but I'm not sure. I've found an old statement where you referred everybody looking for strict ISO compliance to GNU Pascal. However, GNU Pascal has been discontinued, so the question arises, whether FPC is going to support a "strict Standard/Extended Pascal mode" (ideally both) with a full support of these standards. Trunk supports Standard Pascal good enough that the P5 code can be compiled without changes. And yes, the end goal is to have full support for both standards (especially for ExtPas, which is still in its infancy, patches are welcome). Regards, Sven
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