Comparison of Pascal and Delphi: Difference between revisions

Revision as of 04:02, 25 August 2020

Revision as of 19:20, 19 December 2020

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While developing Pascal, Wirth employed a [[Bootstrapping (compilers)|bootstrapping]] procedure in which each newer version of the Pascal compiler was written and compiled with its predecessor. Thus, the 'P2' compiler was written in the dialect compilable by 'P1', 'P3' in turn was written in 'P2' and so on, all the way till 'P5'. The 'P5' compiler implemented Pascal in its final state as defined by Wirth, and subsequently became standardised as 'ISO 7185 Pascal'.

The Borland dialect, like the popular [[UCSD Pascal]] before it, took the 'P4' version of the language as its basis, rather than Wirth's final revision. After much evolution independent of Standard Pascal, the Borland variant became the basis for Delphi. This page goes over the differences between Delphi and Standard Pascal. It does '''<em>not'''</em> go into Delphi-specific extensions to the language, which are numerous and still increasing.

== Differences between Standard Pascal and Delphi ==